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Kurkinen, E.-L., Norén, J., Peñaloza, D., Al-Ayish, N. & During, O. (2018). Energy and climate-efficient construction systems: Environmental assessment of various frame options for buildings in Brf. Viva.
Open this publication in new window or tab >>Energy and climate-efficient construction systems: Environmental assessment of various frame options for buildings in Brf. Viva
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2018 (English)Report (Other academic)
Abstract [en]

In the collaborative forum Positive footprint housing® Riksbyggen is building the Viva residential quarter, which is a sustainability project at the very forefront of what is possible with contemporary construction. The idea is that this residential quarter should be fully sustainable in ecological, economic and social terms. Since 2013, a number of pilot studies have been completed under the auspices of the Viva project framework thanks to financing from the Swedish Energy Agency. The various building frame alternatives that have been evaluated are precast concrete, cast in-situ concrete and solid wood, all proposed by leading commercial suppliers. The report includes a specific requirement for equivalent functions during the use phase of the building, B. An interpretation has been provided that investigates the building engineering aspects in detail, as well as an account of the results based on the social community requirements specified in Viva, durability, fire, noise and energy consumption in the Swedish National Board of Building, Planning and Housing building regulations (BBR), plus Riksbyggen’s own requirements, Sweden Green Building Council’s Environmental Building Gold (Miljöbyggnad Guld) and 100-year life cycle. Given that the alternatives have different long-term characteristics (and also that our knowledge of these characteristics itself varies), these functional requirements have been addressed by setting up different scenarios in accordance with the EPD standard EN 15978. Because Riksbyggen has specified a requirement for a 100-year life cycle, we have also opted for an analysis period of 100 years. The results show no significant differences between concrete and timber structures for the same functions during the life cycle, either for climate or for primary energy. The minor differences reported are accordingly less than the degree of uncertainty involved in the study. The available documentation on the composition of the relevant intumescent paint coating on solid wood frames differs from source to source, so it was not possible to fully allow for the significance of this. The LCA has not included functional changes in the building linked to load-bearing characteristics, noise, moisture, health or other problems that may result in increased maintenance and replacement. The concrete houses have been dimensioned for 100 years, for instance, in accordance with tried and tested standards and experience. The solid wood house is not dimensioned in the same way, and this has led to us having to assume various scenarios.

The results also show the following:

• The uncertainties involved in comparing different structures and alternative solutions are very significant. The results are affected by factors such as life cycle, the functional requirements taken into consideration, transportation, design and structural details, etc.

• Variations in the built items and a considerable degree of uncertainty in the assumptions make it difficult to obtain significant results on comparisons. Only actual construction projects with known specific data, declared from a life cycle perspective that takes into account actual building developer requirements and involving different scenarios (best, documented and worst-case) for the user stage can currently be compared.

• In the other hand, comparisons restricted to different concrete structures only, or to different timber structures only, ought to involve a lower degree of uncertainty. These would then provide results that are significant as well as improvement requirements that are relevant.

• There is potential for improving concrete by imposing requirements on the material

• There is potential for improving solid wood frames by developing and guaranteeing well-documented long-term characteristics for all functional requirements.

The LCAs were performed as an iterative process where all parties were given the opportunity to submit their viewpoints and suggestions for changes during the course of the work. This helped ensure that all alternatives have been properly thought through.

Because, during the project, Riksbyggen opted to procure a concrete frame, in the final stage the researchers involved focused on ensuring the procurement process would result in the concrete frame as built meeting the requirements set out above. As things currently stand, the material requirements for the concrete are limited by the production options open to the suppliers, and this is therefore being investigated in the manufacture of precast concrete frames for the Viva cooperative housing association.

Publisher
p. 41
Series
SP Rapport, ISSN 0284-5172 ; 2015:70 E
Keywords
building systems, climate impact, CLT wood frame, lean concrete frame, sustainable building, LCA, EPD
National Category
Civil Engineering Building Technologies Construction Management Environmental Analysis and Construction Information Technology Other Environmental Engineering
Identifiers
urn:nbn:se:ri:diva-33945 (URN)
Funder
Swedish Energy Agency
Note

Detta är den engelska versionen/översättningen (publicerad 2018) av SP Rapport 2015:70 (publicerad 2015)

This is the english version/translation (published 2018) of SP Rapport 2015:70, (published 2015).

Available from: 2018-06-25 Created: 2018-06-25 Last updated: 2020-01-31Bibliographically approved
Kurkinen, E.-L., Al-Ayish, N., Brick, K., Rönneblad, A., Brunklaus, B., During, O. & Larsson, O. (2018). Kriterier för resurssnålt byggande i praktiken: Slutrapport från forskningsprogrammet E2B2 – energieffektivtbyggande och boende. , 18
Open this publication in new window or tab >>Kriterier för resurssnålt byggande i praktiken: Slutrapport från forskningsprogrammet E2B2 – energieffektivtbyggande och boende
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2018 (Swedish)Report (Other academic)
Abstract [sv]

Arbetet omfattar uppföljning av ställda kriterier för låg klimatpåverkan från betong vid upphandlingav betongstomme för brf. Viva i Göteborg. Kriterierna följdes upp dels genom att LCA studien somgenomförts under programskedet uppdaterades med data för den färdigupphandlade byggnaden ochdels genom att interljuva ett urval av aktörer för att få en inblick över hur branschen ser på de ställdakraven. Arbetet innehåller även en avslutande del angående känsligheten i beräkningarna samtosäkerheter och hur de kan behandlas.Byggnaderna som är tänkta att stå i 100 år kommer utsättas för klimatförändringar. Därförgenomfördes parallellt med LCA studien också energisimuleringar för att se hur den termiskakomforten och uppvärmningsbehovet förändras över tiden.Resultaten av LCA-uppföljningen och de ställda kriterierna visar att kraven uppfylldes för både denprefabricerade betongen och den platsgjutna betongen. Att jämföra den totala klimatpåverkan mellanprogramskedet och upphandlad byggnad visar sig inte vara möjligt då konstruktionen har förändratsalltför mycket, bland annat har den uppvärmda ytan ökat med ca 50% samtidigt som mer material haranvänts för de prefabricerade väggarna och bjälklagen. En känslighetsanalys har istället genomförtssom visar att den upphandlade konstruktionen har 30% lägre klimatpåverkan per BOA jämfört motom den byggts med traditionell betong. Hade de ursprungliga konstruktionsdetaljerna frånprogramskedet använts för väggar och bjälklag hade klimatpåverkan istället varit ca 40% lägre.Vid framtida kravställning bör man därför ta hänsyn även till konstruktionerna, betongkvaliteternaoch dess materialmängder och inte bara ställa krav på betongrecepten som i det här fallet.Klimatsimuleringarna visar att det troligen finns ett stort mörkertal med lågenergilägenheter som harförhöjd temperatur inomhus sommartid redan vid dagens klimat

Publisher
p. 27
Series
E2B2 ; 2018:18
Keywords
LCA, klimatpåverkan, betong, kriterier, upphandling, brf Viva
National Category
Civil Engineering Environmental Management
Identifiers
urn:nbn:se:ri:diva-37597 (URN)
Note

E2B2 genomförs i samverkan mellanIQ Samhällsbyggnad och Energimyndighetenåren 2013–2017

Available from: 2019-01-28 Created: 2019-01-28 Last updated: 2019-06-27Bibliographically approved
Kurkinen, E.-L., Al-ayish, N., Brick, K., Rönneblad, A., Brunklaus, B., During, O. & Larsson, O. (2018). Resurssnålt byggande: så ställs kraven för minstamöjliga klimatpåverkan: Resultatblad från forskningsprogrammet E2B2 –energieffektivt byggande och boende [Review]. Energimyndigheten E2B2
Open this publication in new window or tab >>Resurssnålt byggande: så ställs kraven för minstamöjliga klimatpåverkan: Resultatblad från forskningsprogrammet E2B2 –energieffektivt byggande och boende
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2018 (Swedish)In: Energimyndigheten E2B2Article, book review (Other (popular science, discussion, etc.)) Published
National Category
Engineering and Technology Natural Sciences
Identifiers
urn:nbn:se:ri:diva-37595 (URN)
Available from: 2019-01-28 Created: 2019-01-28 Last updated: 2019-06-27Bibliographically approved
Sellén, M. & Kurkinen, E.-L. (2016). Beständighet för utomhusträ i Brf Viva.
Open this publication in new window or tab >>Beständighet för utomhusträ i Brf Viva
2016 (Swedish)Report (Other academic)
Abstract [en]

Brf Viva is an apartment building, housing society, planned for Gothenburg where one alternative for the façade and house structure is based on wood. The buildings have 6-8 floors with balconies on one or more sides, according to images in the prospectus from Riksbyggen 2014.

By utilizing Report TVBK-3066 [1] (ISSN 0349-4969, ISBN 978-91-87993-01-5) from Lund Technical University and from there in published data, lifetimes of different wooden details of planned buildings, and their maintenance intervals, have been estimated and summed in this report.

Details calculated consists of:

 Protected wood panel and topographically sheltered position and protection by buildings (A1)

 Protected wooden panel and unprotected position (A2)

 Wooden panel without roof overhang with topographically sheltered position and protection by buildings (B1)

 Wooden panel without roof overhang and unprotected position (B2)

 Protected wooden exterior corridor and balcony plate decking (C1). This detail is missing in the guide [1] and its results are therefore considered much more uncertain. Exposed wooden railings on the balcony with topographically sheltered position and protection by buildings (D1)

 Exposed wooden railings on balcony with unprotected position (D2)

The calculated estimates of wooden details life expectancy varied between 12 and 38 years.

Calculating other than those in the report TVBK-3066 [1] described facade panels should be seen more as an attempt to calculate and appears to yield unreasonably short life spans. Calculations on the exterior corridor (C1) is here only to illustrate the inability of the calculation model for the specific example above.

Series
SP Rapport, ISSN 0284-5172 ; 2016:77
Keywords
Wood panel, durability, calculation, building, Brf Viva
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-28190 (URN)
Available from: 2017-02-16 Created: 2017-02-16 Last updated: 2019-06-27Bibliographically approved
Hiller, C. & Kurkinen, E.-L. (2016). Svårigheter och möjligheter vid energieffektivisering (1ed.). In: Ylva Norén Bretzer (Ed.), Urban välfärd, effektiv energi: . Borea Bokförlag
Open this publication in new window or tab >>Svårigheter och möjligheter vid energieffektivisering
2016 (Swedish)In: Urban välfärd, effektiv energi / [ed] Ylva Norén Bretzer, Borea Bokförlag , 2016, 1Chapter in book (Other academic)
Place, publisher, year, edition, pages
Borea Bokförlag, 2016 Edition: 1
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-27937 (URN)9789189140912 (ISBN)
Available from: 2017-01-20 Created: 2017-01-20 Last updated: 2019-06-27Bibliographically approved
Karlsson, H. & Kurkinen, E.-L. (2015). Energi och klimateffektiva byggsystem med hjälp av Modellbaseradprognosstyrning.
Open this publication in new window or tab >>Energi och klimateffektiva byggsystem med hjälp av Modellbaseradprognosstyrning
2015 (Swedish)Report (Other academic)
Alternative title[en]
Energy and Climate-Efficient Building Systems usingModel Based Predictive Control
Abstract [en]

A general optimization model has been developed and applied for a representative apartment in the condominium association "Viva", which is an apartment building area planned to be erected by Riksbyggen, at Dr. Allard street in Gothenburg. The optimization model's purpose is to find the optimum supply of heat from an environmental perspective without compromising thermal comfort. The building's heating system is updated with the heat source CO

2-load, external climatic variations and internal loads, three days ahead and at the same time, the apartment’s heating system and thermal behavior is also taking into account. The aim is to assess the potential for CO2-savings depending on the choice of building structures and heating systems.

The model of the Viva's apartment shows that it is possible to control and optimize the heat supply with respect to comfort requirements, internal and external loads, and environmental damage from the heat production. The extent of CO

2 savings will be entirely dependent on how much CO2 impact of energy varies over time. A variation with a standard deviation of about 25 grams of CO2 / kWh provides savings of up to 20% for an apartment with a concrete frame and up to 16% for the same apartment with wooden frames. The difference between the heating systems; underfloor heating or air heating, is marginal in this case. On the other hand, if the standard deviation would be five times larger, corresponding to the use of margin generated heat, there could be savings of as much as 171% in the concrete apartment with underfloor heating and 145% for the same apartment with wooden frames. If air heating is used the savings will decrease by 20%-units in each case. All these findings are a result of optimization of heat source CO2-load and a comparison with the corresponding apartment controlled without optimization of heat source and were inside temperature could vary between 21-23 degrees. During optimization the temperature has been allowed to vary between 20-24 degrees.

Publisher
p. 37
Series
SP Rapport, ISSN 0284-5172 ; 2015:67
Keywords
Model based predictive control, district heating, building, heating system, concrete, wood
National Category
Civil Engineering
Identifiers
urn:nbn:se:ri:diva-29885 (URN)978-91-88001-91-7 (ISBN)
Funder
Swedish Energy Agency
Available from: 2017-06-13 Created: 2017-06-13 Last updated: 2019-06-27Bibliographically approved
Kurkinen, E.-L., Noren, J., Peñaloza, D., Al-Ayish, N. & During, O. (2015). Energi och klimateffektiva byggsystem: Miljövärdering av olika stomalternativ (ed.). Paper presented at .
Open this publication in new window or tab >>Energi och klimateffektiva byggsystem: Miljövärdering av olika stomalternativ
Show others...
2015 (Swedish)Report (Other academic)
Abstract [en]

In the collaborative forum Positive footprint housing® Riksbyggen is building the Viva residential quarter, which is a sustainability project at the very forefront of what is possible with contemporary construction. The idea is that this residential quarter should be fully sustainable in ecological, economic and social terms. Since 2013, a number of pilot studies have been completed under the auspices of the Viva project framework thanks to financing from the Swedish Energy Agency.

The various building frame alternatives that have been evaluated are precast concrete, cast in-situ concrete and solid wood, all proposed by leading commercial suppliers. The report includes a specific requirement for equivalent functions during the use phase of the building, B. An interpretation has been provided that investigates the building engineering aspects in detail, as well as an account of the results based on the social community requirements specified in Viva, durability, fire, noise and energy consumption in the Swedish National Board of Building, Planning and Housing building regulations (BBR), plus Riksbyggen’s own requirements, Sweden Green Building Council’s Environmental Building Gold (Miljöbyggnad Guld) and 100-year life cycle. Given that the alternatives have different long-term characteristics (and also that our knowledge of these characteristics itself varies), these functional requirements have been addressed by setting up different scenarios in accordance with the EPD standard EN 15978.

Because Riksbyggen has specified a requirement for a 100-year life cycle, we have also opted for an analysis period of 100 years.

The results show no significant differences between concrete and timber structures for the same functions during the life cycle, either for climate or for primary energy. The minor differences reported are accordingly less than the degree of uncertainty involved in the study.

The available documentation on the composition of the relevant intumescent paint coating on solid wood frames differs from source to source, so it was not possible to fully allow for the significance of this.

The LCA has not included functional changes in the building linked to load-bearing characteristics, noise, moisture, health or other problems that may result in increased maintenance and replacement. The concrete houses have been dimensioned for 100 years, for instance, in accordance with tried and tested standards and experience. The solid wood house is not dimensioned in the same way, and this has led to us having to assume various scenarios.

The results also show the following:

 

• The uncertainties involved in comparing different structures and alternative solutions are very significant. The results are affected by factors such as life cycle, the functional requirements taken into consideration, transportation, design and structural details, etc.

 

• Variations in the built items and a considerable degree of uncertainty in the assumptions make it difficult to obtain significant results on comparisons. Only actual construction projects with known specific data, declared from a life cycle perspective that takes into account actual building developer

requirements and involving different scenarios (best, documented and worst-case) for the user stage can currently be compared.

 

• In the other hand, comparisons restricted to different concrete structures only, or to different timber structures only, ought to involve a lower degree of uncertainty, These would then provide results that are significant as well as improvement requirements that are relevant.

 

• There is potential for improving concrete by imposing requirements on the material

 

• There is potential for improving solid wood frames by developing and guaranteeing well-documented long-term characteristics for all functional requirements.

 

The LCAs were performed as an iterative process where all parties were given the opportunity to submit their viewpoints and suggestions for changes during the course of the work. This helped ensure that all alternatives have been properly thought through.

Because, during the project, Riksbyggen opted to procure a concrete frame, in the final stage the researchers involved focused on ensuring the procurement process would result in the concrete frame as built meeting the requirements set out above. As things currently stand, the material requirements for the concrete are limited by the production options open to the suppliers, and this is therefore being investigated in the manufacture of precast concrete frames for the Viva cooperative housing association.

 

Publisher
p. 46
Series
SP Rapport, ISSN 0284-5172 ; 2015:70
Keywords
building systems, climate impact, CLT wood frame, lean concrete frame, sustainable building, LCA, EPD
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-5289 (URN)29388 (Local ID)29388 (Archive number)29388 (OAI)
Funder
Swedish Energy Agency
Available from: 2016-09-07 Created: 2016-09-07 Last updated: 2020-01-31Bibliographically approved
Kurkinen, E.-L., Neisari Tabrizi, A. & Nordén, J. (2015). Energiuppföljning Limnologen och Portvakten (ed.). Paper presented at .
Open this publication in new window or tab >>Energiuppföljning Limnologen och Portvakten
2015 (Swedish)Report (Refereed)
Abstract [sv]

Arbetets syfte är att följa upp energianvändningen i Portvakten och Limnologen samt jämföra utfallet mot tidigare uppföljningar och projekterat värde. Resultaten används för att utreda anledningen till eventuella skillnader samt ge rekommendationer för framtida projekteringar av liknande byggsystem.

Publisher
p. 21
Series
SP Rapport, ISSN 0284-5172 ; 2015:50
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-5276 (URN)28127 (Local ID)978-91-88001-74-0 (ISBN)28127 (Archive number)28127 (OAI)
Available from: 2016-09-07 Created: 2016-09-07 Last updated: 2019-06-27Bibliographically approved
Kurkinen, E.-L., Filipsson, P., Elfborg, S. & Ruud, S. (2014). Skillnad mellan beräknad och verklig energianvändning - Energistyrning under byggprocessen (ed.). Paper presented at .
Open this publication in new window or tab >>Skillnad mellan beräknad och verklig energianvändning - Energistyrning under byggprocessen
2014 (Swedish)Report (Other academic)
Publisher
p. 39
Series
SP Rapport, ISSN 0284-5172 ; 2014:78
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-5231 (URN)18828 (Local ID)978-91-88001-25-2 (ISBN)18828 (Archive number)18828 (OAI)
Available from: 2016-09-07 Created: 2016-09-07 Last updated: 2019-06-27Bibliographically approved
Puig von Friesen, M., Arinder, P., Lundin, M., Yarahmadi, N., Kjellin, M., Kurkinen, E.-L. & Thörnblom, K. (2014). Säkerställa vattenkvalitet vid 45˚C med avseende på Legionella: En förstudie för innovationsupphandling (ed.). Paper presented at .
Open this publication in new window or tab >>Säkerställa vattenkvalitet vid 45˚C med avseende på Legionella: En förstudie för innovationsupphandling
Show others...
2014 (Swedish)Report (Refereed)
Series
SP Rapport, ISSN 0284-5172 ; 2014:65
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-5219 (URN)17744 (Local ID)978-91-88001-11-5 (ISBN)17744 (Archive number)17744 (OAI)
Available from: 2016-09-07 Created: 2016-09-07 Last updated: 2019-06-27Bibliographically approved
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-2210-3003

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