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  • 1.
    Anderson, Johan
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Lange, David
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Modelling in WFDS of a Wildfire Scenario2016Inngår i: Book of Abstracts Nordic Fire & Safety Days 2016, 2016, s. 33-33Konferansepaper (Annet vitenskapelig)
  • 2.
    Anderson, Johan
    et al.
    RISE - Research Institutes of Sweden, Säkerhet och transport, Safety.
    Lange, David
    RISE - Research Institutes of Sweden, Säkerhet och transport, Safety.
    Lönnermark, Anders
    RISE - Research Institutes of Sweden, Säkerhet och transport, Safety.
    Mindykowski, Pierrick
    RISE - Research Institutes of Sweden, Säkerhet och transport, Safety.
    Modelling in wfds of a wildfire scenario2017Inngår i: 15th International Conference and Exhibition on Fire and Materials 2017, Interscience Communications Ltd , 2017, s. 765-776Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In this paper a coarse graining process is used to subsequently model large wildland fires, starting from a model of a single tree. The models are created using Wildland Urban Interface Fire dynamics Simulator (WFDS), and it is here found that reasonable fire spread in small forests can be obtained although the results are quite dependent on grid resolution as well as moisture content. In most realistic scenarios the computational volume is rather large yielding massive amounts of data. In using WFDS a rather small grid size is needed to appropriately model the fire spread this will be a severely limiting factor in creating large models.

  • 3.
    Anderson, Johan
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Säkerhet och transport.
    Sjöström, Johan
    RISE - Research Institutes of Sweden (2017-2019), Säkerhet och transport, Safety.
    Lönnermark, Anders
    RISE - Research Institutes of Sweden (2017-2019), Säkerhet och transport, Safety.
    Persson, Henry
    RISE - Research Institutes of Sweden (2017-2019), Säkerhet och transport, Safety.
    Larsson, Ida
    RISE - Research Institutes of Sweden (2017-2019), Säkerhet och transport, Safety.
    Assessment of Self-Heating in Wood Pellets by FE Modelling2017Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The self-heating process in a laboratory scale experiment has been modelled using the Comsol Multiphysics software. In the simulations the gas flow and air movement in the volume and heat diffusion in the bulk were taken into account however only one reaction in the pellets bulk is considered. The input data is found from measurements of the reaction chemistry and the heat transfer properties. It is found that all relevant physics is needed in order to obtain reasonable predictions in particular the heat transfer between the bulk and the gas is important but also condensation and evaporation of moisture.   

    Fulltekst (pdf)
    fulltext
  • 4. Andersson, Jonas
    et al.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    External conditions have a significant impact on the air flow in tunnels using transverse ventilation for smoke extraction2012Inngår i: Proceedings from the Fifth International Symposium on Tunnel Safety and Security, SP , 2012, , s. 319-327Konferansepaper (Annet vitenskapelig)
  • 5.
    Appel, Glenn
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Ibrahim, Muhammad Asim
    Antändningsprov av avfallsbalar2013Inngår i: Brandposten, nr 48, s. 17-Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 6.
    Arvidson, Magnus
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Commodity classification tests of selected ordinary combustible products. Brandforsk project 620-0012002Rapport (Fagfellevurdert)
    Fulltekst (pdf)
    FULLTEXT01
  • 7.
    Blomqvist, Per
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Larsson, Ida
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Persson, Henry
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Sjöström, Johan
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Lorentsson, Hitomi
    Karaktärisering av självuppvärmning i löslagrat avfall2013Rapport (Fagfellevurdert)
  • 8.
    Blomqvist, Per
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Characterization of the combustion products in large-scale fire tests: comparison of three experimental configurations2001Inngår i: Fire and materials, Vol. 25, nr 2, s. 71-81Artikkel i tidsskrift (Annet vitenskapelig)
  • 9.
    Blomqvist, Per
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Simonson, Margaret
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Miljöbelastning vid bränder och andra olyckor - Utvärdering av provtagning och analyser2004Rapport (Fagfellevurdert)
  • 10.
    Blomqvist, Per
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Simonson, Margaret
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Andersson, Petra
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Polycyclic Aromatic Hydrocarbons (PAHs) Quantified in Large-Scale Fire Experiments2012Inngår i: Fire technology, ISSN 0015-2684, E-ISSN 1572-8099, Vol. 48, nr 2, s. 513-528Artikkel i tidsskrift (Fagfellevurdert)
  • 11.
    Carlsson, Anna-Karin
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Wadman, Charlotta
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Ingason, Haukur
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Andersson, Petra
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Visualization of Measurement Data from Tunnel Fire2007Rapport (Fagfellevurdert)
    Fulltekst (pdf)
    FULLTEXT01
  • 12.
    Claesson, Alexander
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Ingason, Haukur
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Lindström, Johan
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Li, Ying Zhen
    Kumm, Mia
    Laboratory fire experiments with a 1/3 train carriage mockup2012Rapport (Fagfellevurdert)
    Fulltekst (pdf)
    FULLTEXT01
  • 13.
    Dahlbom, Sixten
    et al.
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Anerud, Erik
    SLU Swedish University of Agricultural Sciences, Sweden.
    Lönnermark, Anders
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Pushp, Mohit
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    A theoretical evaluation of the impact of the type of reaction on heat production and material losses in biomass piles2023Inngår i: Fire and Materials, ISSN 0308-0501, E-ISSN 1099-1018, Vol. 11, nr 12, s. 2693-Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Self-heating during storage of biomass in piles causes material losses, leads to emissions to air, and poses a risk of fire. There are different techniques to assess a biomass material's propensity for self-heating, some of these are briefly reviewed. One of these techniques is isothermal calorimetry, which measures thermal power from materials and produces time-resolved curves. A recently developed and published test standard, ISO 20049-1:2020, describes how the self-heating of pelletized biofuels can be determined by means of isothermal calorimetry and how thermal power and the total heat produced during the test should be measured by isothermal calorimetry. This paper supports interpretation of the result obtained by isothermal calorimetry; the mentioned standard provides examples of peak thermal power and total heat but does not provide any assistance on how the result from isothermal measurements should be interpreted or how the result from measurements on different samples could be compared. This paper addresses the impact of different types of reactions, peak thermal power, total heat released (heat of reaction), activation energy, heat conductivity, and pile size on the temperature development in a generic pile of biomass. This paper addresses important parameters when the result from isothermal calorimetry is evaluated. The most important parameter, with respect to temperature development in large piles, was found to be the total heat released. It was also proposed that safe storage times, that is, the time until a run-away of the temperature in the pile, could be ranked based on the time to the peak thermal power.

  • 14.
    Fan, Chuan Gang
    et al.
    Hefei University of Technology, China.
    Li, Ying Zhen
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Ingason, Haukur
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Effect of tunnel cross section on gas temperatures and heat fluxes in case of large heat release rate2016Inngår i: Applied Thermal Engineering, ISSN 1359-4311, E-ISSN 1873-5606, Vol. 93, s. 405-415Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Tests with liquid and solid fuels in model tunnels (1:20) were performed and analysed in order to study the effect of tunnel cross section (width and height) together with ventilation velocity on ceiling gas temperatures and heat fluxes. The model tunnel was 10m long with varying width (0.3m, 0.45m and 0.6m) and height (0.25m and 0.4m). Test results show that the maximum temperature under the ceiling is a weak function of heat release rate (HRR) and ventilation velocity for cases with HRR more than 100MW at full scale. It clearly varies with the tunnel height and is a weak function of the tunnel width. With a lower tunnel height, the ceiling is closer to the base of continuous flame zone and the temperatures become higher. Overall, the gas temperature beneath the ceiling decreases with the increasing tunnel dimensions, and increases with the increasing longitudinal ventilation velocity. The HRR is also an important factor that influences the decay rate of excess gas temperature, and a dimensionless HRR integrating HRR and other two key parameters, tunnel cross-sectional area and distance between fuel centre and tunnel ceiling, was introduced to account for the effect. An equation for the decay rate of excess gas temperature, considering both the tunnel dimensions and HRR, was developed. Moreover, a larger tunnel cross-sectional area will lead to a smaller heat flux.

  • 15.
    Fjellgaard Mikalsen, Ragni
    et al.
    RISE Research Institutes of Sweden, Säkerhet och transport, Brandteknik.
    Lönnermark, Anders
    RISE Research Institutes of Sweden, Säkerhet och transport, Säkerhetsforskning.
    Glansberg, Karin
    RISE Research Institutes of Sweden.
    McNamee, Margaret
    Lund University, Sweden.
    Storesund, Karolina
    RISE Research Institutes of Sweden, Säkerhet och transport, Brandteknik.
    Fires in waste facilities: Challenges and solutions from a Scandinavian perspective2021Inngår i: Fire safety journal, ISSN 0379-7112, E-ISSN 1873-7226, Vol. 120, artikkel-id 103023Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Fires in waste facilities represent significant potential social, economic and environmental challenges. Although the awareness of fires in waste facilities and their consequences has increased in recent years, significant fire safety challenges remain. Fires in waste facilities in Norway and Sweden have been studied to make an overall fire safety assessment and propose measures for increased fire safety. Common ignition causes include self-heating, thermal runaway in batteries, friction, human activity, technical or electrical error and unfavourable combined storage. High-risk wastes include general, residual waste, batteries, electrical and electronics waste, and paper and cardboard. Frequent fires in outdoor storage, increasing indoor storage and new types of waste appear to result in an increased reluctance by insurance companies to work with waste facilities. Measures are suggested for fire safe facility design, operations, waste handling and storage, as well as actions to limit the consequences for the environment and the facility during and after a fire. These actions may prevent fires and minimise the impact of fires that do occur. Increased fire safety at waste facilities may foster a better dialogue between the industry and insurance providers by reducing the potential economic impacts, and limit potential social costs and environmental impacts. © 2020 The Authors

  • 16.
    Gehandler, Jonatan
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Ingason, Haukur
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Frantzich, Håkan
    Requirements and verification methods of tunnel safety and design2012Rapport (Fagfellevurdert)
    Fulltekst (pdf)
    FULLTEXT01
  • 17.
    Gehandler, Jonatan
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Ingason, Haukur
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Frantzich, Håkan
    Strömgren, Michael
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Funktionsbaserade krav och rekommendationer för brandsäkerhet i vägtunnlar (FKR-BV12)2012Rapport (Fagfellevurdert)
    Fulltekst (pdf)
    FULLTEXT01
  • 18.
    Gehandler, Jonatan
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Ingason, Haukur
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Frantzich, Håkan
    Lund University, Sweden.
    Strömgren, Michael
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Performance-based design of road tunnel fire safety: Proposal of new Swedish framework2014Inngår i: Case Studies in Fire Safety, ISSN 2214-398X, Vol. 1, nr 1, s. 18-28Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This paper contains a proposal of new Swedish framework for performance-based design of road tunnel fire safety derived from Swedish and European regulation. The overall purpose of the guideline is to protect life, health, property, environment, and key societal functions from fire. The guideline is structured into five key groups of requirements: #1 Proper management and organisation, #2 to limit the generation and spread of fire and smoke, #3 to provide means for safe self-evacuation, #4 to provide means and safety for the rescue service, and #5 to ensure load-bearing capacity of the construction. Each group contains a hybrid of prescriptive requirements, performance-based requirements, and acceptable solutions. Prescriptive requirements must be fulfilled, however, it is the choice of the design team to either adopt the proposed acceptable solutions, or to design alternative solutions by verifying that performance-based requirements are satisfied. For verification of performance-based requirements through risk analysis the operational, epistemic, and aleatory uncertainties are considerable. Therefore, a scenario-based risk analysis with several specified input variables and methods is recommended for verification of #3 and #5. Indispensable complements are scenario exercises, emergency exercises and similar methods that validate the design and highlight organisational aspects. The proposed design guide has been developed by the authors together with the advisory group established for the work.

  • 19.
    Gehandler, Jonatan
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Ingason, Haukur
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Frantzich, Håkan
    Strömgren, Michael
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Performance-based design of road tunnel fire safety: proposal of new Swedish framework2014Inngår i: Proceedings of Sixth International Symposium on Tunnel Safety and Security., SP Sveriges Tekniska Forskningsinstitut , 2014, , s. 205-214s. 205-214Konferansepaper (Annet vitenskapelig)
  • 20.
    Gehandler, Jonatan
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Ingason, Haukur
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Frantzich, Håkan
    Strömgren, Michael
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Performance-based requirements and recommendations for fire safety in road tunnels (FKR-BV12)2013Rapport (Fagfellevurdert)
    Fulltekst (pdf)
    FULLTEXT01
  • 21.
    Gehandler, Jonatan
    et al.
    RISE - Research Institutes of Sweden, Säkerhet och transport, Safety.
    Lönnermark, Anders
    RISE - Research Institutes of Sweden, Säkerhet och transport, Safety.
    CNG vehicle containers exposed to local fires2019Rapport (Annet vitenskapelig)
    Abstract [en]

    Fuels with a high energy density have contributed to the development of modern communities. On the other hand, fuels contain energy that, during some conditions, can result in incidents, not least within transportation. CNG vehicles are designed according to safety standards of UNECE, including events such as fire. In case of a fire a thermally activated Pressure Relief Device (TPRD) should empty the container before a pressure vessel explosion potentially can occur. CNG tanks are according to UNECE regulation 110 tested against a 1.65 m long pan fire. However, local fires are not included in these tests. This report presents fire tests of CNG containers performed both with a UNECE compatible fire source and with a local fire source. Any pressure vessel explosion and jet flames were characterized for two different types of CNG containers, namely steel and composite. In five out of six tests the safety of the CNG containers prevailed also in the event of a local (0.24 m by 0.24 m) pan fire, meaning that no pressure vessel explosion occurred. In real vehicle fires, where the fire extends from its local characteristics to a more developed fire that expose the CNG containers to a larger extent, these tests support that TPRDs most likely will activate. The experience from running these test series call for that the fire source should be more accurately defined with regards to fuel and dimensions and a local fire should be included in the UNECE Regulation 110.

    Fulltekst (pdf)
    fulltext
    Download (mp4)
    RISE CNG container fire tests
    Download (mp4)
    RISE CNG steel tank fire tests (3 cameras)
    Download (mp4)
    RISE CNG composite tank fire tests (3 cameras)
  • 22.
    Gehandler, Jonatan
    et al.
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Lönnermark, Anders
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Uneven exposure of compressed natural gas (CNG) and hydrogen (H2) cylinders: Fire and extinguishment tests2024Inngår i: Fire safety journal, ISSN 0379-7112, E-ISSN 1873-7226, Vol. 146, artikkel-id 104170Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Vehicles that are powered by gaseous fuel, e.g., compressed natural gas (CNG) or hydrogen (H2), may, in the event of fire, result in a jet flame from a thermally activated pressure relief device (TPRD), or a pressure vessel explosion. There have been a few incidents for CNG vehicles where the TPRD was unsuccessful to prevent a pressure vessel explosion in the event of fire, both nationally in Sweden and internationally. If the pressure vessel explosion would occur inside an enclosure such as a road tunnel, the resulting consequences are even more problematic. In 2019 the authors investigated the fire safety of CNG cylinders exposed to localized fires. One purpose of the tests conducted in 2021 reported in this paper is to investigate whether extinguishment with water, e.g., from a tunnel deluge system, may compromise the safety of vehicle gas cylinders in the event of fire. Steel cylinders handles the situation with localizde fire and/or cooling with water well. Composite tanks can rupture if the fire exposure degrades the composite material strength, and the TPRD is not sufficiently heated to activate, e.g., if the fire is localized or if the TPRD is being cooled by water, which prevents its activation.

    Fulltekst (pdf)
    fulltext
  • 23.
    Gehandler, Jonatan
    et al.
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Lönnermark, Anders
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Runefors, Marcus
    Lund University, Sweden.
    Madsen, Dan
    Lund University, Sweden.
    Egardt, Erik
    MSB Swedish Civil Contingencies Agency, Sweden.
    Tactical depressurization of hydrogen containers with civilian rifle and ammunition2022Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    There can be situations, for example if gas containers have been damaged in a vehicle crash, when the fire and rescue service would like to depressurize the gas containers through shooting with a civilian rifle. Modern high-pressure hydrogen containers are designed for a working pressure of 700 bars. This means that they have a very thick and strong shell made of composite material. At the same time the fire and rescue service only have access to civilian rifles and ammunition that can be bought for hunting purposes. Thus, tactical and safe depressurization of hydrogen containers is a big challenge. RISE have, together with the Södra Älvsborgs Fire and Rescue Services (SÄRF), Swedish Civil Contingency Agency, and Lund University conducted shooting tests of gas tanks mounted on a hydrogen gas vehicle and three stand-alone hydrogen gas tanks. The shooting tests were conducted at Remmene shooting field in Sweden. Thirteen shooting tests with hydrogen tanks placed in favouarable positions were performed. Out of these, only four tests were succesful in puncturing the individual gas tank in a single shot. Furthermore, two unwanted events occurred; one rupture (after 7 shots) and two powerful jets (after 20 and one shot respectively). This shows that further development and research is required in order to develop a method to safely depressurize high pressure hydrogen tanks.

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  • 24.
    Gehandler, Jonatan
    et al.
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Olofsson, Anna
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Hynynen, Jonna
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Temple, Alastair
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Lönnermark, Anders
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Andersson, Johan
    RISE Research Institutes of Sweden, Samhällsbyggnad, Systemomställning och tjänsteinnovation.
    Burgén, Julia
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Huang, Chen
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    BREND 2.0 - Fighting fires in new energy carriers on deck 2.02022Rapport (Annet vitenskapelig)
    Abstract [en]

    The project BREND investigated risk with alternative fuel vehicles inside ro-ro spaces. BREND 2.0 is a continuation and has in particular investigated two of the major risks identified in BREND, namely the risk of toxic gases from electric vehicle fires and the risk of a pressure vessel explosion for fire exposed biogas or hydrogen vehicle tanks. Simulations of electric vehicle fires inside a ro-ro space based on real input fire data has been performed. Field experiments that investigate the conditions that can lead to pressure vessel explosion were made with fire exposed biogas and hydrogen tanks. Recommendations are given about how ro-ro space fires in alternative fuel vehicles, or indeed any vehicle fire, can be managed.

    Fulltekst (pdf)
    fulltext
  • 25.
    Gehandler, Jonatan
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Persson, Henry
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Qualitative Risk Analysis of Dangerous Goods with Alternative Propellants2016Inngår i: Proceedings from the 4th International Conference on Fire in Vehicles - FIVE 2016, 2016, s. 247-248Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    This qualitative risk analysis of dangerous goods transports with alternative propellants was ordered by the Swedish Civil Contingencies Agency (MSB). Scenario combinations consisted of five alternative fuels, six accident scenarios and five types of dangerous goods cargo. The alternative fuels were: methane, hydrogen, ethanol, methanol and dimethyl ether. The accident scenarios consisted of refuelling, fire in tire or engine, tunnel accident, road collision and sabotage of fuel tank. The dangerous goods were limited to: ammonium nitrate, petrol/diesel, methane, ethyl chloride, and EX/II cargo as defined in the ADR regulation. The main identified risks are due to the risk of pressure vessel explosion of gaseous fuels as it: 1) Threatens to detonate explosive load or ammonium nitrate. 2) Cause rescue service to take a defensive approach which will lead to larger consequences. Since there are sustainable liquid fuel alternatives such as bio diesel, this may be a better choice for dangerous goods transportation.

  • 26. Hogland, William
    et al.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Marques, M.
    Persson, Henry
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Storage of organic materials, solid waste and biofuels - Risks for fires and fire fighting2009Konferansepaper (Annet vitenskapelig)
  • 27. Holmstedt, Göran
    et al.
    van Hees, Patrick
    Yan, Z.
    Bengtson, Staffan
    Dittmer, T.
    Blomqvist, Per
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Tuovinen, Heimo
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Validation of CFD codes2008Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    Use of CFD (computional fluid dynamics) software packages within fire performance based engineering and risk assessment is increasing substantially. An important part in the process is the quality assurance. For this reason the Swedish Rescue Services Agency (SRV) sponsored a unique research project. Within the project different codes for smoke spread and evacuation have been evaluated. This poster will focus on the evaluation of four CFD software codes.

  • 28. Holmstedt, Göran
    et al.
    van Hees, Patrick
    Yan, Zhenghua
    Bengtson, Staffan
    Hägglund, Bengt
    Dittmer, Torkel
    Blomqvist, Per
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Tuovinen, Heimo
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Determination of uncertainty of different CFD codes by means of comparison with experimental fire scenarios2009Inngår i: Proceedings of Fire and Materials 2009, 2009, , s. 403-411Konferansepaper (Fagfellevurdert)
  • 29.
    Huang, Chen
    et al.
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Andrei, Lipatnikov
    Chalmers University of Technology, Sweden.
    Lönnermark, Anders
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Development of a numerical tool using an open-source code for creating a safer working environment for the Swedish industries regarding dust explosions2022Rapport (Annet vitenskapelig)
    Abstract [en]

    Dust explosion has been a constant threat to the physical working environment of the Swedish process industries which deal with combustible powders. Examples of such industries are pellets, paper, metal processing, food and feed, pharmaceuticals, and additive industries. This project aims at (i) development of physics-based and well-validated models which address the important combustion phenomena in dust explosions, (ii) development of a well-verified and an efficient numerical tool based on an open-source toolbox OpenFOAM for predicting consequences of dust explosions and (iii) simulation of large-scale dust explosions in the process industries. The project result improves the understanding of dust explosions, and it provides the process industries with a numerical tool for designing safer process plant regarding dust explosions.The model and code development were carried out in a step-by-step fashion. First, the so-called Flame Speed Closure (FSC) model for premixed turbulent combustion, was implemented into OpenFOAM. The implementation was verified against analytical solutions for 1-dimensional planar and 3-dimensional spherical turbulent flames. Second, the developed code including the model, i.e., FSCDustFoam, was validated against experimental data on corn starch dust explosion in a fan-stirred explosion vessel under well-controlled laboratory conditions. Third, the FSC model was extended by adapting the well-known experimental observations of the self-similarity of the flame acceleration to address large-scale industrial dust explosions. An excellent agreement between measurements of vented corn starch dust explosions in an 11.5 m3 vessel and the simulations using the extended the FSC model was obtained.In spite of the successful development of FSCDustFoam, challenges remain. Specifically, the current version of FSCDustFoam cannot address the effect of different shapes of vent openings on dust explosions. Nevertheless, FSCDustFoam is a promising tool to be applied and further developed to resolve the challenging reality regarding dust explosions in the Swedish process industries.

    Fulltekst (pdf)
    fulltext
  • 30.
    Huang, Chen
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Säkerhet och transport, Safety.
    De Grahl, Johanna
    RISE - Research Institutes of Sweden (2017-2019), Säkerhet och transport, Safety.
    Nessvi, Ken
    Process Safety Group, Sweden.
    Lönnermark, Anders
    RISE - Research Institutes of Sweden (2017-2019), Säkerhet och transport, Safety.
    Persson, Henry
    RISE - Research Institutes of Sweden (2017-2019), Säkerhet och transport, Safety.
    Explosion characteristics of biomass dust: comparisonbetween experimental test results and literature data2019Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The design of explosion mitigation strategies e.g. vent design is mainly based on dust explosioncharacteristics such as the maximum explosion pressure XÇïÓ and the deflagration index n! of dustcloud, which are defined in various standards.The wood dust explosion characteristics can be directly obtained by performing standard tests, and testresults are also available in the literature. However, the parameters for one type of dust may varysubstantially in the literature. For example, the n! value for one wood dust is 11.4 times higher thananother wood dust in Gestis-Dust-Ex database. The reason for such large variation in explosionparameters is due to factors such as material properties, particle size distribution, particle shape, moisturecontent, turbulence level during tests and so on.The objectives of this paper are (i) to carry out dust explosion tests for XÇïÓ and n! for two wood dustswith well-described material parameters such as particle size distribution and moisture content accordingto European standards, (ii) to perform statistical analysis of wood dust explosion characteristics includingXÇïÓ and n! in the literature, (iii) to identify the effects of dust material parameters such as particle sizeand moisture contents on XÇïÓ and n! and (iv) to highlight the variation in XÇïÓ and n! and theimportance of obtaining knowledge about these properties of an individual dust, e.g. via dust explosiontests.

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    fulltext
  • 31.
    Huang, Chen
    et al.
    RISE Research Institutes of Sweden, Säkerhet och transport, Säkerhetsforskning.
    Lönnermark, Anders
    RISE Research Institutes of Sweden, Säkerhet och transport, Säkerhetsforskning.
    Lipatnikov, Andrei
    Chalmers University of Technology, Sweden.
    Development of a numerical tool using an open source code for creating a safer working environment for the Swedish industries regarding dust explosions: Part report (from 2019-02-01 until 2020-01-31)2020Rapport (Annet vitenskapelig)
    Abstract [sv]

    Dammexplosioner är ett konstant hot mot de svenska industrier som hanterar material eller utför processer som skapar brännbart damm, såsom pelletstillverkare, livsmedelsindustri, metallindustri m.m. Det aktuella projektet syftar till att (i) utveckla välvaliderade numeriska modeller som kan ta hänsyn till de viktigaste förbränningsfenomenen, (ii) utveckla ett numeriskt verktyg baserat på en öppen källkod, och (iii) beräkna verkliga dammexplosionsscenarier i samråd med representanter för berörda industrier. Projektresultatet kan fylla kunskapsluckorna när det gäller förståelse för dammexplosioner, att uppskatta konsekvenser av dammexplosioner, ge rekommendationer för bättre konstruktion av byggnader och relevanta säkerhetssystem, och därmed ge personalen en säkrare arbetsmiljö. Under det första året, har den öppna källkodsplattformen OpenFOAM installerats och testats. Den så kallade FSC (Flame Speed Closure) modellen för förblandade turbulenta flammor implementerades i OpenFOAM. Implementeringen av FSC-modellen har verifierats mot analytiska lösningar för 1-D plana och 3-D sfäriska förblandade turbulenta flammor. Verifikation av implementationen visar att modellen implementerades korrekt. För närvarande är den numeriska modellen under validering mot småskaliga experimentella resultat för 3-D sfäriska flamma i Leeds förbränningskärl. De första beräkningarna visar att modellen och koden predikterar trenden. Det vill säga, flamhastigheter ökar när turbulenta hastighetsfluktuationer ökar. Beräkningar visar också att modellen och koden även kvantitativt predikterar flamhastigheter om rimliga modelleringsparametrar används. I nästa steg, kommer modellen och koden utvecklas ytterligare för att ta hänsyn till värmeförluster och strålning. Därefter kommer beräkningsresultaten att jämföras med experimentella resultat från de storskaliga tryckavlastningsförsöken, med olika geometrier, utförda vid Rembe® Research and Technology Center.

    Fulltekst (pdf)
    fulltext
  • 32.
    Huang, Chen
    et al.
    RISE Research Institutes of Sweden, Säkerhet och transport, Säkerhetsforskning.
    Lönnermark, Anders
    RISE Research Institutes of Sweden, Säkerhet och transport, Säkerhetsforskning.
    Lipatnikov, Andrei
    Chalmers University of Technology, Sweden.
    Development of a numerical tool using an open source code for creating a safer working environment for the Swedish industries regarding dust explosions: Part report (from 2020-02-01 until 2021-01-31)2021Rapport (Annet vitenskapelig)
    Abstract [sv]

    Dammexplosioner är ett konstant hot mot de svenska industrier som hanterar material eller utför processer som skapar brännbart damm, såsom pelletstillverkare, livsmedelsindustri, metallindustri m.m. Det aktuella projektet syftar till att (i) utveckla välvaliderade numeriska modeller som kan ta hänsyn till de viktigaste förbränningsfenomenen, (ii) utveckla ett numeriskt verktyg baserat på en öppen källkod, och (iii) beräkna verkliga dammexplosionsscenarier i samråd med representanter för berörda industrier. Projektresultatet kan fylla kunskapsluckorna när det gäller förståelse för dammexplosioner, att uppskatta konsekvenser av dammexplosioner, ge rekommendationer för bättre konstruktion av byggnader och relevanta säkerhetssystem, och därmed ge personalen en säkrare arbetsmiljö. I slutet av det första och i början av det andra projektåret, har den utvecklade numeriska plattformen, som innehåller dammexplosionsmodellen validerats med de experimentella data för dammexplosioner i majsstärkelse i Leeds förbränningskärl under välkontrollerade experimentella förhållanden. Därefter har ett samarbete etablerats med Rembe Research and Technology Center i Tyskland för att applicera den utvecklade numeriska plattformen för att simulera en storskalig industriell dammexplosion. Parallellt med samarbetet med Rembe, har ett samarbete etablerats med Gexcon för att utföra en gemensam studie om dammexplosioner med det utvecklade verktyget i projektet och den kommersiella koden FLACS-DustEx.

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  • 33.
    Ibrahim, Muhammad Asim
    et al.
    Linnaeus University, Sweden.
    Appel, Glenn
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Persson, Henry
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Hogland, William
    Linnaeus University, Sweden.
    Combustion Characteristics of Municipal Solid Waste Bales2013Inngår i: Fire Technology, Vol. 51, nr 1, s. 109-127Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Combustion behaviour of municipal solid waste bales is a rarely studied topic hitherto. However, there is dire need to devote research on the topic because baling as a storage methodology is getting popular among waste management companies and fire episodes in such storage sites can have devastating economic, environmental and social implications. In this study, thickness of low density polyethylene (LDPE) plastic sheets (12 layers, 6 layers and no layer) and type of ignition source (pilot ignition, thermal radiation) were investigated to see their effect on combustion behaviour of bales. In total eleven tests with a single bale in each test were performed. It has been found that the bales not wrapped with LDPE plastic sheets may pose higher hazards for adjacently stored material to catch fire as the value of maximum heat release rate observed for them was higher than those wrapped with LDPE plastic sheets. Furthermore, it has been found that LDPE plastic wrapping do not contribute significantly to the combustion of bales when exposed only to thermal radiation from an adjacent fire. However, it plays a significant role in ignition of bales in case exposed to a pilot flame ignition source. Molten LDPE plastic trapped between the adjacently stored bales was found to be another important factor influencing the combustion of bales.

  • 34.
    Ibrahim, Muhammad Asim
    et al.
    Linnaeus University, Sweden.
    Lönnermark, Anders
    RISE Research Institutes of Sweden, Säkerhet och transport, Brand och Säkerhet.
    Hogland, William
    Linnaeus University, Sweden.
    Safety at waste and recycling industry: Detection and mitigation of waste fire accidents2022Inngår i: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 141, s. 271-281Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In this study, NASA’s VIIRS (Visible Infrared Imaging Radiometer Suite) fire hotspots and data of the Swedish Civil Contingencies Agency (MSB), collected between 2012 and 2018, was integrated to characterize waste fire incidents that were detected by VIIRS and reported to MSB (DaR), detected by VIIRS but not reported to MSB (DbNR) and that are reported to MSB but not detected by VIIRS (RbND). Results show that the average number of open waste fire incidents per million capita per year (AFIPMC) in Sweden, for the period 2012–2018, ranges from 2.4 to 4.7. Although a weak correlation exists (r = 0.44, P = 0.1563, one tailed) between years and number of fire incidents (MSB + VIIRS fires), a continuous increase in number of fire incidents was recorded between 2014 and 2018. It is concluded that the use of satellite data of fire anomalies, in-combination with the use of incident reports, will help in formalizing more reliable and comprehensive waste fire statistics. Another focus area of the article is to consolidate the recommendations and routines for safe storage of waste and biofuels and to present the lessons that can be learnt from past fire incidents. The article also discusses the technical, political, economic, social, and practical aspects of waste fires and provide a baseline for future research and experimentation.

    Fulltekst (pdf)
    fulltext
  • 35.
    Ingason, Haukur
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Arvidson, Magnus
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Brandsäkerhet i tunnlar - nya kunskapsrön2004Inngår i: Bygg & Teknik, nr 6, s. 12-17Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 36.
    Ingason, Haukur
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Bergqvist, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Frantzich, Håkan
    Hasselrot, Kjell
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Räddningsinsatser i vägtunnlar2005Inngår i: Räddningsverket, s. P21-459/05Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 37.
    Ingason, Haukur
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Gehandler, Jonatan
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    ISTSS Tunnelkonferens i Marseille2014Inngår i: Brandposten, nr 50, s. 8-9Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 38.
    Ingason, Haukur
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Kumm, Mia
    Nilsson, D
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Claesson, Alexander
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Li, Ying Zhen
    Fridolf, Karl
    Åkerstedt, Rolf
    Nyman, Hans
    Dittmer, Torkel
    Forsén, Rickard
    Janzon, Bo
    Meyer, G
    Bryntse, A
    Carlberg, Tobias
    Newlove, Lindy
    Palm, Anders
    The METRO Project - Final Report2012Rapport (Fagfellevurdert)
  • 39.
    Ingason, Haukur
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Li, Ying Zhen
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Runehamar tunnel fire tests2015Inngår i: Fire safety journal, ISSN 0379-7112, E-ISSN 1873-7226, Vol. 71, nr Jan, s. 134-149Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Five large-scale fire tests, including one pool fire test and four HGV mock-up fire tests, were carried out in the Runehamar tunnel in Norway in year 2003. New data and new analyzes are presented in this paper, together with a short summary of previous work on these tests. Heat release rate (HRR), radiation, fire spread, gas production, backside wall temperature, visibility, backlayering, fire growth rate, gas temperature, flame length, ventilation and pulsation are investigated. Simple theoretical models are developed to estimate and predict these parameters. The correlations developed can be used by engineers working on fire safety in tunnels.

  • 40.
    Ingason, Haukur
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Li, Ying Zhen
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Tunnel Fire Dynamics2014Bok (Annet vitenskapelig)
  • 41.
    Ingason, Haukur
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    A new method of risk assessment when fighting tunnel fires2010Inngår i: BrandPosten, nr 42, s. 30-Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 42.
    Ingason, Haukur
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Available measuring technique2008Rapport (Annet (populærvitenskap, debatt, mm))
  • 43.
    Ingason, Haukur
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Brand i tunnlar under byggnation är en säkerhetsrisk2010Inngår i: BrandPosten, nr 43, s. 30-31Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 44.
    Ingason, Haukur
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Brandbelastning och brandscenarier för järnvägstunnlar2004Rapport (Fagfellevurdert)
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    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Brandbelastning och brandscenarier för vägtunnlar2004Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    FULLTEXT01
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    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Brandspridning mellan industribyggnader2008Inngår i: Bygg & Teknik, nr 6, s. 57-59Artikkel i tidsskrift (Annet vitenskapelig)
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    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Effects of Longitudinal Ventilation on Fire Growth and Maximum Heat Release Rate2010Inngår i: Proceedings of fourth international symposium on tunnel Safety and Security, 2010, , s. 395-406Konferansepaper (Fagfellevurdert)
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    Ingason, Haukur
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    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Fire development of Large Vehicles in Road Tunnels2004Inngår i: Proceedings of the Fifth International Conference on Tunnel fires, 2004, , s. 203-212Konferansepaper (Annet vitenskapelig)
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    Ingason, Haukur
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    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Fire safety in tunnels during construction2010Inngår i: BrandPosten, nr 41, s. 10-11Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
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    Lönnermark, Anders
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Fire Spread between Industrial Premises2011Inngår i: Fire Safety Science proceedings of the tenth international symposium, International Association for fire safety science , 2011, , s. 1305-1318Konferansepaper (Fagfellevurdert)
12345 1 - 50 of 224
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