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  • 401.
    Wendin, Karin
    et al.
    Kristianstad University, Sweden; University of Copenhagen, Denmark.
    Langton, Maud
    SLU Swedish University of Agricultural Sciences, Sweden.
    Norman, Cecilia
    RISE - Research Institutes of Sweden, Bioscience and Materials, Agrifood and Bioscience.
    Forsberg, Sarah
    Kristianstad University, Sweden.
    Davidsson, Fredrik
    Geoloc AB, Sweden.
    Josell, Åsa
    Atria Scandinavia AB, Sweden.
    Prim, Mia
    RISE - Research Institutes of Sweden, Bioscience and Materials, Agrifood and Bioscience. University of Gothenburg, Sweden.
    Berg, Johan
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Eat’em or not?: insects as a culinary delicacy2017In: PROCEEDINGSICCAS 2017 Exploring Future Foodscapes Copenhagen, 2017, p. 100-106, article id #39Conference paper (Refereed)
    Abstract [en]

    Introduction: The world´s population is increasing and thus the pressure on the earth´s resources. To ensure food supply and sustainability, food habits in western societies have to change. By reducing the ecological footprint of food consumption, e.g., decrease meat consumption, significant contribution to global sustainability can be achieved. Advantages concerning nutrition and sustainability have been found by inclusion of insects in the diet. Insects as food has a large potential, and the “culinary way” seems to be an effective way to reach consumer acceptance for insect based food products. The aim was to examine consumer acceptance and neophobia related to the use of insects as ingredients in food

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  • 402.
    Werder, Julia
    et al.
    Bundesanstalt für Materialforschung und ‐prüfung, Germany.
    Simon, Sebastian
    Bundesanstalt für Materialforschung und ‐prüfung, Germany.
    Lehmann, Christian
    TU Berlin, Germany.
    Selleng, Christian
    TÜV Nord MPA, Germany.
    Fontana, Patrick
    RISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Meng, Birgit
    Bundesanstalt für Materialforschung und ‐prüfung, Germany.
    Autoclaving of ultra-high performance concrete (UHPC)2018In: ce/papers, ISSN 2509-7075, Vol. 2, no 4, p. 131-136Article in journal (Refereed)
    Abstract [en]

    Abstract By the combination of an optimized granulometry, a reduced water?cement ratio and the use of superplasticizers ultra-high performance concrete achieves a compressive strength of over 150 N/mm2 and a high resistance regarding acids and water-soluble salts. In different research projects the effect of an autoclavation on the mechanical strength and the phase composition was analyzed. In systematic studies, the concrete mix and the process parameters were varied. The results show that autoclavation leads to an improved pozzolanic and hydraulic reaction and significantly improves the mechanical strength compared to a conventional thermal treatment. If a minimum time-span for hydration is ensured, the achievable strength level is not dependent on the prestorage time. However, the duration of the autoclaving is significant. After the maximum strength is reached there is only a very slight decrease, even if unrealistically long autoclaving times are applied.

  • 403.
    Whittaker, M. J.
    et al.
    Queen’s University Belfast, UK.
    Grigoriadis, K.
    Queen’s University Belfast, UK.
    Soutsos, M.
    Queen’s University Belfast, UK.
    Sha, W.
    Queen’s University Belfast, UK.
    Klinge, A.
    ZRS Architekten Ingenieure GmbH, Germany.
    Paganoni, S.
    ZRS Architekten Ingenieure GmbH, Germany.
    Casado, M.
    ACCIONA Construction Technology Centre, Spain.
    Brander, Linus
    RISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Mousavi, Marjan
    RISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Scullin, M.
    CDE Global Ltd, UK.
    Correia, R.
    CREAGH Concrete, UK.
    Zerbi, T.
    STAM S.R.L., Italy.
    Staiano, G.
    STRESS S.C.A.R.L., Italy.
    Merli, I.
    VORTEX HYDRA S.R.L., Italy.
    Ingrosso, I.
    CETMA, Italy.
    Attanasio, A.
    CETMA, Italy.
    Largo, A.
    CETMA, Italy.
    Novel construction and demolition waste (CDW) treatment and uses to maximize reuse and recycling2019In: Advances in Building Energy Research, ISSN 1751-2549, E-ISSN 1756-2201Article in journal (Refereed)
    Abstract [en]

    The EU Waste Framework Directive 2008/98/EC states that all member states should take all necessary measures in order to achieve at least 70% re-use, recycling or other recovery of non-hazardous Construction and Demolition Waste (CDW) by 2020. In response, the Horizon 2020 RE4 project consortium (REuse and REcycling of CDW materials and structures in energy efficient pREfabricated elements for building REfurbishment and construction) consisting of 12 research and industrial partners across Europe, plus a research partner from Taiwan, was set up. For its success, the approach of the Project was manifold, developing sorting technologies to first improve the quality of CDW-derived aggregate. Simultaneously, CDW streams were assessed for quality and novel applications developed for aggregate, timber and plastic waste in a variety of products including structural and non-structural elements. With all products considered, innovative building concepts have been designed in a bid to improve future reuse and recycling of the products by promoting prefabricated construction methods and modular design to ease future recycling and increase value of the construction industry. The developed technologies and products have been put to the test in different test sites in building a two-storey house containing at least 65% of CDW. © 2019, © 2019 The Author(s)..

  • 404.
    Widing, Anders
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Building Technology.
    Flygt, Elisabeth
    RISE - Research Institutes of Sweden, Built Environment, Building Technology.
    Glas- och träprototyper: Laminerat glas och träutforskas som fasadmaterial, i trappor och bänkar…2019In: Glas, no 1, p. 58-59Article in journal (Other (popular science, discussion, etc.))
  • 405.
    Williams Portal, Natalie
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Boubitsas, Dimitrios
    RISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Sprickor i betong2019Report (Other academic)
    Abstract [en]

    The Swedish Fortifications Agency’s (FORTV) property stock consists of numerous concrete structures built both above and below rock. Some of these structures have experienced cracking overtime which, in turn, can lead to subsequent problems such as reinforcement corrosion and deterioration of structural performance. Due to the fact that in many cases there are building requirements related to protection against forced entry and weapon attacks, it is of great importance for FORTV to gain an understanding of how cracks are developed, the significance of the crack development, how do cracks affect the performance, as well as how cracks can be remediated. A similar project, with a focus on so-called access protection, has earlier been managed by FORTV. During the project, it was ascertained that there is inadequate knowledge pertaining to crack repair.

    The goals of this project were the following:Suggest a method or a tool to evaluate the extent of cracking in concrete structures which are included in protective facilitiesDescribe which parameters can initiate cracking.Describe repair methods to reinstate the functionality of concrete structures.

    Cracking naturally takes place during the normal use of a concrete structure without influencingthe structure’s functionality given that it is designed correctly. However, there are other mechanisms which can initialize cracking in concrete structures. These mechanisms take place during various time periods (hardening, after hardening andduring the service life). Three crack groups have been identified accordingly: a) cracks due to poor workmanship, b) cracks due to chemical deterioration mechanisms and c) loading cracks.

    Damage identification and a condition assessment can be conducted in different stages to determine the extent of cracking. It is firstly recommended to review the existing documentation coupled to the structure, followed by a preliminary inspection (visual), additional non-destructive testing and lastly destructive testing. Repairs are selected according to the source of the damage, it is to say concrete defects or corroded reinforcement. In addition, the functionality requirements for the structure shall be evaluated and the selected methods shall be assessed according to e.g. lifespan and cost.

     

  • 406.
    Williams Portal, Natalie
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Flansbjer, Mathias
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Honfi, Daniel
    RISE - Research Institutes of Sweden, Built Environment, Building Technology.
    Testing of self-supporting laminated glass balustrades2019Report (Other academic)
    Abstract [en]

    The work carried out within Task 2 Experimental work of the ÅForsk funded project "Structural safety of glass components" is presented in this report. The main goal of this project was to improve the understanding about the structural safety of self-supporting glass components. In particular, the results of the project intended to extend the current knowledge about the effect of impact and related testing methods regarding the safety of glass structures.

    Static and impact tests were conducted on a self-supporting glass balustrade with point-fixings. The laminated glass consisted of two 10 mm thick layers of laminated glass and a 0.76 mm thick interlayer made of EVA (ethylene vinyl acetate). A static line load was cyclically applied to the top of the specimen to gain an understanding of the static behaviour of the glass structure and to minimize the settlement in the structure prior to applying impact loading. The specimen was subsequently subjected to dynamic loading by impact tests based on EN 12600 (pendulum impact) with different drop heights until attaining failure. The dynamic structural response of the glass balustrade was analysed by three-dimensional Digital Image Correlation (3D-DIC). This measurement technique made it possible to directly relate the measurement of any point to the specimen and to study the deformed 3D shape in detail during the impact test. The FE-analysis (FEA) conducted using SJ Mepla was found to correlate rather well with the dynamic test results particularly up to the initial peak displacement.

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  • 407.
    Williams Portal, Natalie
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Flansbjer, Mathias
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Malaga, Katarina
    RISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Mueller, Urs
    RISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Anchorage of Textile Reinforcement in High-Performance Concrete2017Conference paper (Refereed)
    Abstract [en]

    The mechanical properties of textile reinforced high-performance concrete (TRHPC) applied in innovative lightweight sandwich elements has been investigated in the framework of EC supported FP7 project, H-House (Healthier Life with Eco-innovative Components for Housing Constructions). TRHPC offers new possibilities for architects and engineers to create thinner and more durable concrete façade elements. Textile reinforcement grids are typically woven from non-metallic rovings usually consisting of continuous glass, rock or carbon fibres. The most promising performing textile reinforcement alternative in terms of mechanical and durability performance consists of carbon fibres. Carbon fibres do however have an inherent smooth surface which is unfavourable concerning its bond to the cement paste, which is often improved by polymer-based coatings. The bond behaviour, being a critical design parameter, should be investigated for TRHPC in order to understand limitations regarding required anchorage lengths for use in applications such as façade elements. The aim of this study was to quantify and verify the required anchorage length for a selected epoxy impregnated carbon textile reinforced TRHPC combination. To achieve this aim, the bond behaviour, leading to a suitable anchorage length (or overlap), was firstly studied by means of pull-out tests. Thereafter, the ultimate strength of the composite material was measured via uniaxial tensile testing with and without an overlap splice according to the findings from the pull-out tests. Optical measurements during the pull-out tests were performed using a video extensometer technique and by Digital Image Correlation (DIC) for the uniaxial tensile tests. Results indicated that the required anchorage length to yield rupture of the textile reinforcement in pull-out was deemed appropriate as an overlapping length when tested in tension. The combination of these two experimental methods on the composite level was useful for determining the overlapping length required for the TRHPC which could be applied in larger scale applications.

  • 408.
    Williams Portal, Natalie
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Flansbjer, MathiasRISE - Research Institutes of Sweden, Safety and Transport, Safety.Mueller, UrsRISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Analysis of the Flexural Behavior of Textile Reinforced Reactive Powder Concrete Sandwich Elements Using Optical Measurements2018Conference proceedings (editor) (Refereed)
    Abstract [en]

    Prefabricated and non-load bearing sandwich façade elements were developed using Textile Reinforced Reactive Powder Concrete (TRRPC) along with low density Foamed Concrete (FC) and Glass Fiber Reinforced Polymer (GFRP) continuous connecting devices. Four-point bending tests were performed on large-scale TRRPC sandwich element beams to characterize the structural performance, which included the flexural capacity, level of composite action, resulting deformation, crack propagation and failure mechanisms. Optical measurements based on Digital Image Correlation (DIC) were taken simultaneously to enable a detailed analysis of the underlying composite action. The structural behavior of the developed elements was found to be highly dependent on the stiffness and strength of the connectors to ensure composite action between the two TRRPC panels.

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  • 409.
    Williams Portal, Natalie
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Flansbjer, Mathias
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Mueller, Urs
    RISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Experimental Study on Anchorage in Textile Reinforced Reactive Powder Concrete2017In: Nordic Concrete Research, ISSN 0800-6377, Vol. 57, no 2, p. 73-88, article id 6Article in journal (Refereed)
    Abstract [en]

    The EC funded project SESBE (Smart Elements for Sustainable Building Envelopes) focused on utilizing new types of cementitious materials for reducing the mass and thickness of façade elements while increasing their thermal performance. A method enabling the quantification and verification of the required anchorage length for a given textile reinforced reactive powder concrete (TRRPC) is presented. At the material level, tensile tests were conducted to determine the tensile properties of the reinforcement. Pull-out tests were applied to quantify the required anchorage length, while uniaxial tensile tests were performed to quantify the ultimate strength and verify the suitability of the anchorage length at the composite level. The combination of these methods was deemed useful to determine the overlapping length required for larger scale façade applications.

  • 410.
    Williams Portal, Natalie
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Flansbjer, Mathias
    RISE - Research Institutes of Sweden (2017-2019), Safety and Transport, Safety.
    Zandi, Kamyab
    RISE - Research Institutes of Sweden (2017-2019), Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Wlasak, Lech
    Mostostal Warszawa SA, Poland.
    Malaga, Katarina
    RISE - Research Institutes of Sweden (2017-2019), Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Bending behaviour of novel Textile Reinforced Concrete-foamed concrete (TRC-FC) sandwich elements2017In: Composite structures, ISSN 0263-8223, E-ISSN 1879-1085, Vol. 177, p. 104-118Article in journal (Refereed)
    Abstract [en]

    A novel sandwich element design consisting of two facings made of carbon reinforced Textile Reinforced Concrete (TRC), a low density foamed concrete (FC) core and glass fibre reinforced polymer (GFRP) connecting devices was experimentally investigated according to quasi-static and cyclic quasi-static fourpoint bending. Optical measurements based on Digital Image Correlation (DIC) were taken during testing to enable a detailed analysis of the bending behaviour and level of composite action. A model, verified by the experiments, was developed based on non-linear finite element analysis (NLFEA) to gain further insight on the failure mechanisms. Under both loading conditions, the bending behaviour of the TRCFC composite elements was characterized by favourable load bearing capacity, partial composite action, superior ductility and multiple fine cracking. The connecting devices were found to be the critical elements causing the initial failure mechanism in the form of localized pull-out within an element.

  • 411.
    Williams Portal, Natalie
    et al.
    RISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute. Chalmers University of Technology, Sweden.
    Nyholm Thrane, Lars
    DTU Technical University of Denmark, Denmark.
    Lundgren, Karin
    Chalmers University of Technology, Sweden.
    Flexural behaviour of textile reinforced concrete composites: experimental and numerical evaluation2017In: Materials and Structures, ISSN 1359-5997, E-ISSN 1871-6873, Vol. 50, no 4, p. 1-14Article in journal (Refereed)
    Abstract [en]

    Textile reinforced concrete (TRC) is an innovative high performance composite material which has revealed many promising attributes in various applications but test methods and reliable numerical models need to be established to reduce uncertainty and the need for extensive experimental studies. The aim of this paper was to evaluate the flexural behaviour of carbon textile reinforced TRC slabs both experimentally and numerically along with the characterization of the material and interaction level properties. The experimental results characterizing the bond behaviour were linked to the experimental behaviour of a rectangular TRC slab in bending through numerical analyses. A 2D macro-scale FE-model of the tested TRC slab was developed based on the related experimental input. Comparison of the numerical results to the experiments revealed that the flexural failure was governed by bond, and reasonable agreement was obtained in terms of crack development, deflections, maximum load, and failure mode. Accordingly, the experiments further indicated that the flexural behaviour of TRC slabs is greatly influenced by the bond quality.

  • 412.
    Willquist, Karin
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Werker, Alan
    Promiko, Sweden.
    Bengtsson, Simon
    Promiko, Sweden.
    Persson, Magnus
    The Paper Province, Sweden.
    Pawar, Sudhanshu
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    van Niel, Ed
    Lund University, Sweden.
    Bioplastogen: Innovativ produktion av biologisk vätgas med plaster från svartlut2017Report (Other academic)
    Abstract [en]

    This hypothesis testing project has been with aim to validate potential for a novelmultipurpose cascading biorefinery, producing four principal platform productswithin a Kraft pulp mill: cellulose, lignofuels, biohydrogen and biopolymers.Cellulose and lignin product lines are presently well characterized at commercialscale. The project was, therefore, focused on evaluating and identifyingopportunities and challenges in processes for biohydrogen and biopolymersproduction from mill hemicellulose residuals.The project undertaking comprised three phases: determining the hemicelluloserich stream (HRS) to use, fermentation of sugars to hydrogen gas and organicacids, and conversion of organic acids to PHA by activated sludge. A literaturesurvey and discussions with the experts at various pulp and paper industries in theKarlstad region, as well as the developers of LignoBoost technology at Innventiaclearly mark the challenges of using black liquor directly as the HRS. Thesechallenges can be avoided by pre-extraction of the hemicellulose residual massvia ‘autohydrolysis’ of wood before the Kraft process. Hence, the residualhemicellulose before it enters the black liquor was the selected HRS.The HRS contained about 19 g/L of organics comprising of mainly pentose sugarsand organic acids along with some soluble lignin. A number of batch experimentswere performed in flasks that confirmed potential for H2 production by anosmotolerant strain (CSG5) of Caldicellulosiruptor sacchrolyticus. Experimentswere also performed in a fed-batch bioreactor. Here practical advancement wasmade with respect to process developments for industrial applications. However,no significant growth or H2 production was observed when permeate was added tothe reactor. This outcome was considered in hindsight to be due to an unforeseenoutcome of headspace partial pressure generated by the experimental set up.Nevertheless, given the HRS strategy and first positive indicators from batchexperiments, next steps to establish the industrial methods for conversion ofautohydrolysis hemicellulose residuals to H2 were recommended based onadaptation of the strain to the feed and/or application of co-culture bioprocessengineering.The effluent from biohydrogen production feeds a biopolymer production process.Two distinct sludge samples were sourced from municipal water treatment atSjölunda to evaluate polyhydroxyalkanoates (PHA) accumulation potential. Themixed cultures naturally accumulated a moderate level of more than 25% ofgPHA/gVSS. The conversion of the organic matter in the HRS stream into PHAwas successfully observed thus supporting the project hypothesis. Similarly to thebiohydrogen outcome, next steps will entail the development of an acclimatedenrichment PHA producing biomass from Kraft mill industry wastewaterbiological treatment.Through this work steps were made that strengthened the ideas as well as thestrategy forward which are to be implemented through the forthcoming proposedproject – HyPer.

  • 413.
    With, G. D.
    et al.
    NRG Nuclear Research and Consultancy Group, The Netherlands.
    Michalik, B.
    GIG Central Mining Institute, Poland.
    Hoffmann, B.
    BfS Federal Office for Radiation Protection, Germany.
    Döse, Magnus
    RISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Development of a European harmonised standard to determine the natural radioactivity concentrations in building materials2018In: Construction and Building Materials, ISSN 0950-0618, E-ISSN 1879-0526, Vol. 171, p. 913-918Article in journal (Refereed)
    Abstract [en]

    In 2013 the European Commission has published its latest basic safety standards for protection against the dangers arising from exposure to ionising radiation (Council Directive 2013/59/Euratom). The council directive regulates radiation exposure from building materials through the presence of radioactivity (226Ra, 232Th and 40K) in these materials. Pivotal to successful regulation is the availability of a harmonised test method for the determination of the radionuclide concentrations as these nuclides form the basis for dose assessment and compliance. In 2017 a Technical Specification (CEN, 2017) on the determination of the activity concentrations of 226Ra, 232Th and 40K in construction products was published by the European Committee for Standardization (CEN). The purpose of this work is to give an outline of the proposed method, with the protocols for sampling, measurement and data processing as well as a summary of the robustness testing and the expert comments that have been received following the final consultation. 

  • 414.
    Wärff, Christoffer
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Arnell, Magnus
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Jeppsson, Ulf
    Lund University, Sweden.
    Sehlén, Robert
    Tekniska Verken i Linköping, Sweden.
    Modelling heat recovery potential from household wastewater2019In: Proceedings of 10th IWA Symposium on Modelling and Integrated Assessment, 2019Conference paper (Refereed)
    Abstract [en]

    There is a strongly growing interest for wastewater heat recovery (WWHR) in Sweden and elsewhere, but a lack of adequate tools to determine downstream impacts due to the associated temperature drop. The heat recovery potential and associated temperature drop after heat recovery on a building level is modelled for a case study in Linköping, Sweden. The maximum temperature drop reaches 4.2 °C, with an annual recovered heat of 0.65 kWh/person/day. Wastewater temperature out from the heat exchanger was 18.0 °C in winter at the lowest. The drinking water source type can be an important factor when considering wastewater heat recovery.

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  • 415.
    Xie, Yujiao
    et al.
    Luleå University of Technology, Sweden ; Shandong University of Technology, China.
    Björkmalm, Johanna
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Ma, Chunyan
    Luleå University of Technology, Sweden.
    Willquist, Karin
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Yngvesson, Johan
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Wallberg, Ola
    Lund University, Sweden.
    Ji, Xiaoyan
    Luleå University of Technology, Sweden.
    Techno-economic evaluation of biogas upgrading using ionic liquids in comparison with industrially used technology in Scandinavian anaerobic digestion plants2018In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 227, p. 742-750Article in journal (Refereed)
    Abstract [en]

    The process of biogas upgrading with ionic liquids, i.e. pure 1-butyl-3-methylimidazolium bis(trifluoro-methylsulfonyl)imide ([bmim][Tf2N]), aqueous choline chloride/urea (ChCl/Urea), and aqueous 1-allyl-3-methyl imidazole formate ([Amim][HCOO]), was simulated in Aspen Plus and compared with the conventional water scrubbing upgrading technique. The comparisons of the performances on the amount of recirculated solvents and energy usage show the following order: aqueous [Amim][HCOO]<aqueous ChCl/Urea<[bmim][Tf2N]<water. Six different co-digestion plants (anaerobic digestion, AD, plants) were surveyed to acquire data for comparison. The selected plants had different raw biogas production capacities and produced gas with differing methane content. The data confirmed the simulation results that the type of substrate and the configuration of AD process are two factors affecting energy usage, investment cost, as well as operation and maintenance costs for the subsequent biogas upgrading. In addition, the simulation indicated that the energy usage of the ionic liquid-based upgrading was lower than that of the conventional upgrading techniques in Scandinavian AD plants. The estimated cost including investment, operation and maintenance for the ionic liquid technology showed to be lower than that for the water scrubbing upgrading process.

  • 416.
    Yarahmadi, Nazdaneh
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Vega, Alberto
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Jakubowicz, Ignacy
    RISE - Research Institutes of Sweden, Bioscience and Materials, Chemistry and Materials.
    Accelerated ageing and degradation characteristics of rigidpolyurethane foam2017In: Polymer degradation and stability, ISSN 0141-3910, E-ISSN 1873-2321, Vol. 138, p. 192-200Article in journal (Refereed)
    Abstract [en]

    The urgent need for revision of the normative test method (EN 253) for the lifetime prediction of district

    heating pipes requires a better understanding of the failure mechanisms involved. Therefore, various

    methods were used to study thermal degradation characteristics of rigid polyurethane (PUR) foam in

    both air and nitrogen atmosphere. Accelerated ageing in nitrogen caused insigni

    ficant changes, whereas

    ageing in air caused signi

    ficant changes in weight, dimensions, chemical structure and cell gas composition,

    indicating importance of the thermo-oxidative type of degradation. A clear indication of the

    thermo-oxidative type of degradation was the formation of new carbonyl groups in PUR together with

    the loss of CH

    2 groups after ageing in air. Another result of ageing in air was the loss of pentane and

    cyclopentane, and the formation of some new volatile compounds in the cells of PUR foam. However,

    despite a large difference in degradation characteristics between the samples aged in air and in nitrogen,

    no signi

    ficant difference in the flexural strength of PUR foam was recorded during the induction stage of

    the degradation process. Furthermore, it is shown that the signi

    ficant drop in shear strength, which

    re

    flects the adhesion force between PUR foam and steel pipe, observed during the early stage of

    accelerated ageing of district heating pipes is not caused by thermo-oxidative degradation.

  • 417.
    Yarahmadi, Nazdaneh
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Vega, Alberto
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Jakubowicz, Ignacy
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Determination of essential parameters influencing service life time of polyurethane insulation in district heating pipes2017In: Energy Procedia, Elsevier Ltd , 2017, p. 320-323Conference paper (Refereed)
    Abstract [en]

    Pre-insulated district heating pipes (DHP) have been in use during the last forty years. Many improvements and development have been done in the system. However, life-time prediction is still an uncertain issue. This paper is a part of a bigger project with the objective to determine mechanisms related to the deterioration of the mechanical and insulation properties of pre-insulated heating pipes as a result of ageing. The focus in this project is on degradation mechanisms of the PUR material at high temperatures. In this paper some results of the two types of exposure are presented. The first type comprises a condition where the new pipes are subjected to accelerated ageing at three different temperatures. The second type comprises condition, when the PUR material itself is aged in different atmospheres in order to identify different degradation mechanisms. The chosen ageing temperatures in the first condition were 130°C, (close to the supply temperature), 150°C and 170°C, (accelerated ageing temperature in EN 253 [1]). Changes in thermal insulation and the adhesion force between the PUR and the steel pipe were evaluated using the transient plane source (TPS) technique and the SP plug method respectively. The results of ageing show that the degradation of PUR is a multi-stage process composed of a rapid change in properties followed by a plateau phase which changes later to a gradual deterioration of the properties. The results of the PUR material exposure at 150°C in air and in nitrogen showed significant differences in the degradation characteristics between the two environments as were revealed by DSC and FTIR methods. © 2017 The Authors. Published by Elsevier Ltd.

  • 418.
    Yarahmadi, Nazdaneh
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Vega, Alberto
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Jakubowicz, Ignacy
    RISE - Research Institutes of Sweden, Bioscience and Materials, Chemistry and Materials.
    Livslängd för fjärrvärmerör: Fas 1 - Nedbrytningsmekanismer2017Report (Other academic)
    Abstract [sv]

    Dagens standard för prefabricerade fjärrvärmerör SS-EN253 innehåller olika testmetoder och krav där ett av de viktigaste är kravet på livslängd på minst 30 år vid en kontinuerlig driftstemperatur på 120 °C. Bestämningen av tekniska livslängden är baserad på mätningar av förändringar i skjuvhållfastheten efter accelererad termisk åldring. Den beräknade livslängden för ett fjärrvärmerör är baserad på extrapolering med hjälp av Arrhenius ekvation. Det finns en stor enighet kring uppfattningen att Arrhenius modellen inte ger en god överensstämmelse med de observerade åldringsdata och att det följaktligen saknas tillförlitliga metoder för livslängdsbestämning av fjärrvärmerör. Trots många forskningsrapporter finns det fortfarande skilda teorier om hur snabbt PUR-isoleringar bryts ner och vilka nedbrytningsmekanismer som dominerar. Syftet med det här projektet är att kartlägga de komplicerade sambanden och förstå vilka nedbrytningsprocesser som dominerar under olika betingelser och utifrån denna kunskap utveckla tillförlitliga metoder för livslängdsprediktering.

    Allt testmaterial utgjordes i denna studie av polyuretan (PUR) cellplastisolering som togs ut från nytillverkade fjärrvärmerör. Accelererad åldring genomfördes i luft och i kväveatmosfär vid 150 °C för upp till 8 veckor. Det visade sig att exponering i kväveatmosfär inte orsakar någon mätbar förändring av egenskaper. En motsvarande åldring i luft orsakar däremot stora förändringar i både dimensioner, viktförlust och färg. IR (infraröd) analys kunde också bekräfta att materialet bryts ner genom termo-oxidativa processer. Termo-oxidativ nedbrytning syns också i analyser av cellgassammansättningen. Materialet efter åldring i luft innehåller betydligt mindre halt cyklopentan samtidigt som fyra nya flyktiga ämnen kunde detekteras. Trots alla indikationer på materialets termo-oxidativa nedbrytning har böjhållfastheten inte förändrats hos materialet. Detta måste utredas vidare för att kunna förklara mekanismer bakom resultatet.

    Förutom beständighetsstudier av PUR materialet genomfördes långtidsåldring av fjärrvärmerör vid olika temperaturer. Resultaten av skjuvhållfasthet mätningar indikerar att det åtminstone finns tre olika faser i nedbrytningsprocessen. Initialt sjunker hållfastheten troligen på grund av fysikaliska effekter orsakade av de höga temperaturerna. Därefter ökar skjuvhållfastheten troligen beroende på sidoreaktioner och fortsatt tvärbindning. Det tredje steget är en termo-oxidativ nedbrytning som såsmåningom leder till förlust av vidhäftningen. Även värmeledningsförmågan ökar betydligt som ett resultat av nedbrytningsprocesser. Det finns behov av ytterligare forskning för att kunna föreslå en ny modell för livslängdsberäkningar baserade på experimentella resultat.

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  • 419.
    Ylmen, Peter
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Building Technology.
    Berlin, Johanna
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden.
    Arfvidsson, Jesper
    Lund University, Sweden.
    The importance of including secondary effects when defining the system boundary with life cycle perspective: Case study for design of an external wall2017In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 143, p. 1105-1113Article in journal (Refereed)
    Abstract [en]

    Life cycle assessment and life cycle cost analysis are suitable tools in trying to minimize environmental impact and cost. To get reliable results it is crucial to set up correct system boundaries for the investigation, but it is often difficult to understand a complex products system because of the cascade effects of consequences that can be induced even by small changes. In this paper the effects and consequences evaluation (ECE) method is introduced to systematically identify and organize the effects and consequences for a design change of parts of a complex system. The method is applied in a case study of external wall insulation for a new building to investigate the importance of correct system boundaries. Using the methodical approach in identifying all significant consequences showed that unexpected unit processes can be important when deciding on the relevant system boundary. We also conclude that such processes can have a significant impact on the final results by calculating the change in global warming potential and life cycle cost for the processes affected by the design option.

  • 420.
    Ylmen, Peter
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Building Technology. Lund University, Sweden.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden.
    Berlin, Johanna
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Arfvidsson, J.
    Lund University, Sweden.
    The influence of secondary effects on global warming and cost optimization of insulation in the building envelope2017In: Building and Environment, ISSN 0360-1323, E-ISSN 1873-684X, Vol. 118, p. 174-183Article in journal (Refereed)
    Abstract [en]

    The relative environmental impact from the building construction phase is increasing compared to the operation phase for new buildings. Therefore, it is important to consider the complete environmental life cycle of energy improvement measures. Many advanced optimization methods have been developed in recent years to assess building life cycle impact. However, these previous studies have not fully addressed the secondary effects, in other words, indirect effects outside the actual design option. This may lead to conclusions of optimization studies based on misleading calculation results. The main purpose this study was to highlight the relevance of including secondary effects in optimization of building design with respect to global warming potential and cost. This was done by conducting a parameter study of the building envelope insulation thickness with regard to global warming potential and life cycle costs, while considering secondary effects induced by the different design options. Findings from this study show that secondary effects influence the system boundary, algorithm architecture, results and the final conclusions of optimal building design. Omitting secondary effects can thus lead to incorrect decision on optimal solutions with regard to global warming potential and life cycle cost. Therefore, it is therefore important to take them into consideration when performing optimization studies of building design options.

  • 421.
    Ylmen, Peter
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Built Environment, Building Technology.
    Peñaloza, Diego
    IVL Swedish Environmental Research Institute, Sweden.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden (2017-2019), Built Environment, Building Technology.
    Life Cycle Assessment of an Office Building Based on Site-Specific Data2019In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 12, no 13, article id 2588Article in journal (Refereed)
    Abstract [en]

    Life cycle assessment (LCA) is an established method to assess the various environmental impacts associated with all the stages of a building. The goal of this project was to calculate the environmental releases for a whole office building and investigate the contribution in terms of environmental impact for different parts of the building, as well as the impact from different stages of the life cycle. The construction process was followed up during production and the contractors provided real-time data on the input required in terms of building products, transport, machinery, energy use, etc. The results are presented for five environmental impact categories and, as expected, materials that constitute the main mass of the building and the energy used during operation contribute the largest share of environmental impact. It is usually difficult to evaluate the environmental impact of the materials in technical installations due to the lack of data. However, in this study, the data were provided by the contractors directly involved in the construction and can, therefore, be considered highly reliable. The results show that materials for installations have a significant environmental impact for four of the environmental impact categories studied, which is a noteworthy finding.

  • 422.
    Ylmen, Peter
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Building Technology.
    Peñaloza, Diego
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Schade, Jutta
    RISE - Research Institutes of Sweden, Built Environment, Building Technology.
    Livscykelstudie av kontor med kombinerad betong- och träkonstruktion2018Report (Other academic)
    Abstract [en]

    Vasakronan has produced an office building were seven of the floors are mainly made in concrete and two floors are mainly made of wooden materials.  As Vasakronan had little previous experience with wooden construction works they were interested in comparing the different production methods from an environmental and economic perspective.

    The main purpose of the project was to analyze the long-term environmental impact of different building methods with alternative design and production as well as material choice and on-site systems. A secondary purpose was to assess the economic consequences of different construction solutions. The goals were to:

    • provide advice and suggestions on how different material choice, construction solutions and assembly methods can be used from their environmental and economic properties.
    • find environmental hot-spots in the building process.
    • contribute with knowledge and experience to develop methods regarding life cycle assessment (LCA) and calculation of life cycle cost (LCC) for building projects. 
    • compare differences between constructions in concrete and wood.

    An LCA was carried out on the whole building and LCA and LCC calculation were conducted to compare the environmental impact and cost of concrete and wooden constructions.  The results include global warming potential, eutrophication potential, acidification potential, stratospheric ozone depletion potential, photooxidants creation potential and present costs. The data were collected by the contractors during production to ensure that the results are based on the finished building and not assumptions made during the design stage.

    The report shows the difficulties that arise during life cycle studies of buildings but also provides guidance how to solve them in this particular case, which can be used as a base for continued development of methods.

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  • 423.
    Zetterholm, Jonas
    et al.
    Luleå University of Technology, Sweden.
    Pettersson, Karin
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Leduc, Sylvain
    International Institute for Applied Systems Analysis, Austria.
    Mesfun, Sennai
    International Institute for Applied Systems Analysis, Austria.
    Lundgren, Joakim
    Luleå University of Technology, Sweden ; International Institute for Applied Systems Analysis, Austria.
    Wetterlund, Elisabeth
    Luleå University of Technology, Sweden ; International Institute for Applied Systems Analysis, Austria.
    Resource efficiency or economy of scale: Biorefinery supply chain configurations for co-gasification of black liquor and pyrolysis liquids2018In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 230, p. 912-924Article in journal (Refereed)
    Abstract [en]

    Biorefineries for the production of fuels, chemicals, or materials can be an important contributor to reducing dependence on fossil fuels. The economic performance of the biorefinery supply chain can be increased by, for example, industrial integration to utilise excess heat and products, increasing size to improve economy of scale, and using intermediate upgrading to reduce feedstock transport cost. To enable a large-scale introduction of biorefineries it is important to identify cost efficient supply chain configurations. This work investigates a lignocellulosic biorefinery concept integrated with forest industry, focusing on how different economic conditions affect the preferred supply chain configurations. The technology investigated is black liquor gasification, with and without the addition of pyrolysis liquids to increase production capacity. Primarily, it analyses trade-offs between high biomass conversion efficiency and economy of scale effects, as well as the selection of centralised vs. decentralised supply chain configurations. The results show the economic advantage for biomass efficient configurations, when the biorefinery investment is benefited from an alternative investment credit due to the replacement of current capital-intensive equipment at the host industry. However, the investment credit received heavily influenced the cost of the biorefinery and clearly illustrates the benefit for industrial integration to reduce the cost of biorefineries. There is a benefit for a decentralised supply chain configuration under very high biomass competition. However, for lower biomass competition, site-specific conditions will impact the favourability of either centralised or decentralised supply chain configurations.

  • 424.
    Zetterholm, Jonas
    et al.
    Luleå University of Technology, Sweden.
    Wetterlund, Elisabeth
    Luleå University of Technology, Sweden; IIASA International Institute for Applied Systems Analysis, Austria.
    Pettersson, Karin
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Lundgren, Joakim
    Luleå University of Technology, Sweden ; IIASA International Institute for Applied Systems Analysis, Austria.
    Evaluation of value chain configurations for fast pyrolysis of lignocellulosic biomass - Integration, feedstock, and product choice2018In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 144, p. 564-575Article in journal (Refereed)
    Abstract [en]

    Fast pyrolysis of lignocellulosic biomass constitutes a promising technology to reduce dependence on fossil fuels. The product, pyrolysis liquids, can either substitute heavy fuel oil directly, or be upgraded via e.g. hydroprocessing to diesel and petrol. This study presents a systematic evaluation of production costs and CO2 mitigation potentials of different fast pyrolysis value chain configurations. The evaluation considers types of localisations, emissions from electricity and hydrogen production, biomass feedstocks, and final products. The resulting production costs were found to be in the range of 36–60 EUR/MWh for crude pyrolysis liquids, and 61–90 EUR/MWh upgraded to diesel and petrol. Industrial integration was found to be favoured. The CO2 mitigation potential for the pyrolysis liquids was in the range of 187–282 t-CO2/GWh biomass. High variations were found when upgraded to diesel and petrol –best-case scenario resulted in a mitigation of 347 t-CO2/GWh biomass, while worst-case scenarios resulted in net CO2 emissions. Favourable policy support, continued technology development, and/or increased fossil fuel prices are required for the technology to be adapted on an industrial scale. It was concluded that integration with existing industrial infrastructure can contribute to cost reductions and thus help enable the transformation of traditional forest industry into biorefineries.

  • 425.
    Zheng, Wandong
    et al.
    Tianjin University, China.
    Hennessy, Jay
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Li, Hailong
    Mälardalen University, Sweden.
    Reducing renewable power curtailment and CO2 emissions in China through district heating storage2019In: Wiley Interdisciplinary Reviews: Energy and Environment, ISSN 2041-8396, E-ISSN 2041-840X, article id e361Article in journal (Refereed)
    Abstract [en]

    Emissions reductions are often achieved through the increased share of renewable energy sources (RES) and China is the leader in the growth of RES in the power sector. This growth has led to high levels of curtailment of RES power due to insufficient reinforcement of the electricity grid to support such growth and due to competition with other power sources. Although the problem of curtailment has been alleviated in recent years, large amounts of power are still discarded, and it is important to consider how to address this problem in the short term and how much CO2e emissions could be avoided as a result. The use of district heating systems to reduce the curtailment of renewable power has seen increasing interest in recent years. Based on a review of potential energy storage in district heating, the current paper assesses the capability to use the national storage potential of district heating systems in China to reduce curtailment and to determine what effects that may have on avoiding CO2e emissions. The distribution networks and the thermal inertia of buildings connected to district heating are considered as two major forms of storage that can be “charged” using power that would otherwise be curtailed. The results show that there may be sufficient storage available to absorb all renewable power that is currently curtailed in those provinces using district heating during the heating season, resulting in avoided emissions of up to 14 MtCO2e/annum. This article is categorized under: Energy and Climate > Economics and Policy Wind Power > Climate and Environment Energy Infrastructure > Climate and Environment Energy and Urban Design > Climate and Environment.

  • 426.
    Östman, Birgit A.-L.
    et al.
    Linnaeus University, Sweden.
    Tsantaridis, L. D.
    RISE - Research Institutes of Sweden, Built Environment, Building Technology.
    Durability of the reaction to fire performance of fire-retardant-treated wood products in exterior applications – a 10-year report2017In: International Wood Products Journal, ISSN 2042-6445, E-ISSN 2042-6453, Vol. 8, no 2, p. 94-100Article in journal (Refereed)
    Abstract [en]

    Fire retardants may considerably improve the reaction to fire properties of wood products, but the long term durabi­lity needs to be addressed. Several long term studies of fire retardant treated (FRT) wood products over time are presented. They are performed according to a European system based on earlier Nordic and North American systems and include accelerated aging according to different procedures and natural weathering up to 10 years. Main conclusions are:

    • products studied and used commercially

    • The reaction to fire properties of FRT wood may be maintained after accelerated and natural aging if the The hygroscopic properties are unchanged compared to untreated wood for most FRT wood retention levels are high enough, but several products lose most of their improved reaction to fire properties during weathering

    • Paint systems contribute considerably to weather protection and are usually needed to maintain the reaction to fire performance at exterior applications

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  • 427.
    Östman, Birgit
    et al.
    Linneaus University, Sweden.
    Brandon, Daniel
    RISE - Research Institutes of Sweden, Built Environment, Building Technology.
    Frantzich, Håkan
    Lund University, Sweden.
    Fire safety engineering in timber buildings2017In: Fire safety journal, ISSN 0379-7112, E-ISSN 1873-7226, Vol. 91, p. 11-20Article in journal (Refereed)
    Abstract [en]

    The combustibility of timber is one of the main reasons that many building regulations strictly limit the use of timber as a building material. Fire safety is an important contribution to feeling safe, and an important criterion for the choice of building materials. Historically, the combustibility aspect of wood has been a disadvantage for using timber as a construction material. The main precondition for an increased use of timber in buildings is providing adequate fire safety. This paper reviews the opportunities and challenges to reach this goal by implementing Fire Safety Engineering and Performance Based Design principles.

  • 428.
    Olander, Stefan (Editor)
    Lund University, Sweden.
    Mjörnell, Kristina (Editor)
    RISE - Research Institutes of Sweden, Built Environment. Lund Universtiy, Sweden.
    Femenias, Paula (Editor)
    Chalmers University of Technology, Sweden.
    Helsing, Elisabeth (Editor)
    RISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute.
    Wallenten, Petter (Editor)
    Lund Universtiy, Sweden.
    Hållbar renoveringur ett helhetsperspektiv: En antologi från forskningsmiljön SIRen2019Report (Other academic)
    Abstract [sv]

    Innehållsförteckning:

    - Förord  av Madeleine Nobs, NCC

    - Innehållsförteckning

    - Tvärdisciplinär forskning möjliggör hållbar integrerad renovering av Kristina Mjörnell, RISE och Lunds Universitet

    - SIRens-process för hållbar renovering med uppföljning av Petter Wallentén, Lunds Universitet, Kristina Mjörnell, RISE och Lunds Universitet

    - Praktisk tillämpning av SIRens renoveringsprocess av Sofia Meurk, Omreda AB

    - Varsam energieffektiv renovering – Tjärna ängar Borlänge av Jonn Are Myhren, Högskolan Dalarna, Martin Bergdahl, Högskolan Dalarna

    - Sociala perspektiv på termisk komfort vid renovering av Tjärna Ängar av Annette Henning, Högskolan Dalarna, Jonn Are Myhren, Högskolan Dalarna, Maria Wallinder, Högskolan Dalarna och Linköpings universitet

    - Från omfattande till varsam renovering av Paula Femenías, Chalmers Tekniska högskola, Sara Hamon, Familjebostäder, Jospehina Wilson, Familjebostäder, Per-Henrik Hartman Familjebostäder, Kristina Mjörnell, RISE och Lunds Universitet

    - Beslutsfattande i tidiga skeden vid renovering av skolbyggnad av Karin Farsäter, Lunds Universitet, Stefan Olander, Lunds Universitet

    - Lyckad renovering av miljonprogramsområde i Munkedal  av Anna Rudhag, Rotpartner

    - Kunskapslyft renovering av Liane Thuvander, Chalmers Tekniska Högskola, Paula Femenías, Chalmers Tekniska Högskola, Fredrik Olsson, Rotpartner, Angelica Starke, Rotpartner

    - ”Örat mot marken” Kartbaserad metodik för boendeinflytande i stadsutveckling av Liane Thuvander, Chalmers Tekniska Högskola, Jenny Stenberg, Chalmers Tekniska Högskola, Alfredo Torrez, Hyresgästföreningen, Kim Weinehammar, Hyresgästföreningen, Jesper Bryngelsson, Hyresgästföreningen

    - Hyresgästsamråd vid renovering – fyra dilemman av Jenny Stenberg, Chalmers Tekniska Högskola

    - Kulturvärden och hållbar renovering av Petra Eriksson, Uppsala universitet, Campus Gotland, Anna Donarelli, Riksantikvarieämbetet, Therese Sonehag, Riksantikvarieämbetet

    - Hållbar energieffektivisering av historiska trä- och stenbyggnader med hampa-kalk av Paulien Strandberg-de Bruijn, Lunds Universitet, Kristin Balksten, Uppsala universitet Campus Gotland, Anna Donarelli, Riksantikvarieämbetet

    - Superisoleringsmaterial – hur kan de användas vid renovering? av Pär Johansson, Chalmers tekniska högskola, Petra Eriksson, Uppsala Universitet,Paula Wahlgren, Chalmers tekniska högskola

    - Kulturvärden i planeringsprocessen - kulturmiljöprogram som kunskapsunderlag av Sanja Peter, Göteborgs stad

    - Varför är det så ont om Q? av Jennie Sjöholm, Luleå Tekniska Universitet, Kristina L Nilsson, Luleå Tekniska Universitet

    - Installation av FTX – ett sätt att få lägre energianvändning och bättre innemiljö  av Dennis Johansson, Lunds Universitet, Akram Abdul Hamid, Lunds Universitet, Hans Bagge, Lunds Universitet, Jan Kristoffersson, Sustainable Innovation

    - Mäta resursförbrukning under ombyggnad  av Jan Bröchner, Chalmers Tekniska Högskola, Ahmet Anil Sezer, Chalmers Tekniska Högskola

    - Relining eller rörbyte  av Folke Björk, Kungliga Tekniska Högskolan, Parastou Kharazmi, Kungliga Tekniska Högskolan, Tord af Klintberg, Kungliga Tekniska Högskolan

    - Vad står det i lagar och regler om renovering?  av Elisabeth Helsing, RISE

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  • 429.
    Algehed, Jessica (Editor)
    FOG Innovation, Sweden.
    Eneqvist, Erica (Editor)
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Jensen, Christian (Editor)
    University of Gothenburg, Sweden.
    Lööf, Jenny (Editor)
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    INNOVATION OCH STADSUTVECKLING : En forskningsantologi om organiseringsutmaningar för stad och kommun2019Book (Other academic)
    Abstract [sv]

    Våra städer och kommuner arbetar hårt i en tid av komplexa frågor och stora förändringar. Innovation lyfts gärna fram som vägen framåt för att nå en hållbar stadsutveckling, men det

    finns fler nyanser och andra sidor av detta begrepp. Inom den akademiska litteraturen pågår en problematiserande diskussion, men den syns inte lika tydligt i resten av samhället.

    Denna antologi fördjupar och problematiserar diskussionen kring

    innovation i städer, med specifikt fokus på svenska förhållanden. Boken ger en överskådlig bild av en del av forskningsfältet kring ämnen som rör innovationsprocesser med koppling till kommuners stadsutvecklingsuppdrag. I bokens 15 kapitel beskriver och diskuterar forskare bland annat nya roller och utmaningar för kommunen och dess tjänstepersoner, projektifiering, mätbarhet och värdefrågor, samverkan, lärande, ledarskapsfrågor och konflikthantering.

    Boken vänder sig till personer som arbetar med utvecklingsfrågor i kommuner, såsom stadsplanerare eller strateger, men även politiker och tjänstepersoner som arbetar inom andra delar av offentlig sektor.

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