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  • 201.
    Cedering, Magdalena
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    SP är notiferat för certifiering av brandgasventilatorer2005In: BrandPosten, no 32, p. 26-Article in journal (Other (popular science, discussion, etc.))
  • 202. Cheng, Xudong
    et al.
    Byström, Alexandra
    Wickström, Ulf
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Veljkovic, Milan
    Thermal analysis of a pool fire test in a steel container2012In: Journal of Fire Sciences, Vol. 30, no 2, p. 170-184Article in journal (Refereed)
  • 203.
    Chow, WK
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Cheung, YL
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Selection of differencing schemes on simulating the sprinkler hot-air layer problem1999In: Numerical Heat Transfer, Part A Applications, ISSN 1040-7782, E-ISSN 1521-0634, Vol. 35, no 3, p. 311-330Article in journal (Other academic)
  • 204.
    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 mockup2012Report (Refereed)
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  • 205.
    Dederichs, Anne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    NFSD Nordic Fire & Safety Days: Book of abstracts from the NFSD Nordic Fire & Safety Days 16-17 June in Copenhagen, Denmark2016Report (Other academic)
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    fulltext
  • 206.
    Degerman, Helene
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Eriksson, Kerstin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Risk och innovation2015In: Brandposten, no 53, p. 4-5Article in journal (Other (popular science, discussion, etc.))
  • 207. Delin, Mattias
    et al.
    Norén, Johan
    Fridolf, Karl
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Kuklane, Kalev
    Halder, Amitava
    Lundgren, Karin
    Månsson, S
    Ascending Evacuation – Walking speed in stairs as a function of height2015In: Proceedings for The 6th International Symposium on Human Behaviour in Fire, 2015Conference paper (Other academic)
  • 208. Devaney, S.
    et al.
    Lange, David
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Usmani, A.
    Manohar, C.S.
    Adapting the peer methodology to account for the fire hazard in built structures2012Conference paper (Other academic)
  • 209. Devaney, S.
    et al.
    Lange, David
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Usmani, A.
    Manohar, C.S.
    Development of a Performance-Based Structural Fire Engineering Framework for Implementation as a Software Design Tool2012Conference paper (Other academic)
  • 210.
    Edvardsson, Johan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Kjellerup, Lasse
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Piku Amen, Malika
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Hindrum, Kerstin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Hertzberg, Tommy
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    FLOT - Förprojekt Lättviktskonstruktioner Offshore Topside2013Report (Refereed)
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  • 211.
    Eriksson, Kerstin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Kommunala risk- och sårbarhetsanalyser- Användande och utnyttjande2016Report (Other academic)
    Abstract [en]

    Risk and vulnerability analysis is a tool that is used to prevent and prepare our society for crises. Today Swedish municipalities are required to perform such an analysis as part of their crisis management work. Although these analyses are described as important for crisis management, there are not many studies that indicate how it is important.The purpose of this report is to describe municipal risk and vulnerability analysis and how the results of the work is utilized. The goals are to contribute to the development of the Swedish crisis management system and provide feedback to the municipalities and county councils interviewed in this study.The results show that today the focus is on risk and vulnerability analysis and the methods for performing them, and not on how they is used in society. In the effort to further develop risk and vulnerability analysis (and crisis management work) there is a need to analyze the methods that lead to positive development and those that need to change. We must dare to ask an unpleasant question about whether there is value to working the way we do today, or whether we should try something new that perhaps is better suited for analyzing our complex social system.Key words: Risk and vulnerability analysis, municipality, crisis management, preparednessNyckelord: Risk- och sårbarhetsanalys, kommun, krishantering, förberedelser

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  • 212.
    Eriksson, Kerstin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Välbesökt och kärnfullt riskseminarium2014In: Brandposten, no 51, p. 21-Article in journal (Other (popular science, discussion, etc.))
  • 213.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Brandsäkerhet i nästa generations flyktingbostäder2015In: Bygg och Teknik, no 6, p. 58-Article in journal (Other academic)
  • 214.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Engineering analysis report – Eco-Island ferry2015Report (Refereed)
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    FULLTEXT01
  • 215.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Engineering analysis report – Norwegian Future2015Report (Refereed)
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    FULLTEXT01
  • 216.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Fire safe island ferries of the future2014In: International Fire BuyerArticle in journal (Other academic)
    Abstract [en]

    A detailed process to build environmentally friendly and fire safe island ferries in fiber reinforced polymer composite has been developed by SP Fire Technology in a Swedish-Danish consortium.

  • 217.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Fire safety approved for the world's first ship to run on methanol2015In: Brandposten, no 52, p. 18-20Article in journal (Other academic)
  • 218.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Fire safety approved of the world's first methanol ship2015In: FS-World, no Mars, p. 4-6Article in journal (Other academic)
  • 219.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Framtidens skärgårdsfärjor är här2013In: Brandposten, no 48, p. 40-41Article in journal (Other (popular science, discussion, etc.))
  • 220.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Isolering påverkar brandens utveckling2012In: Brandposten, no 47, p. 27-Article in journal (Other (popular science, discussion, etc.))
  • 221.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Stena Germanica meets methanol challenge2015In: Naval Architect, p. 42-45Article in journal (Other academic)
  • 222.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    The future is lightweight and risk-based2014In: Via Mare By Sea, no 1, p. 40-44Article in journal (Other academic)
  • 223.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    The future: Lightweight & risk-Based2011In: Maritime Reporter and Engineering News, p. 54-55Article in journal (Other (popular science, discussion, etc.))
  • 224.
    Evegren, Franz
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    The world's first ship with fire safety adapted to methanol2015In: International Fire Fighter Magazine, no 46, p. 107-109Article in journal (Other (popular science, discussion, etc.))
  • 225.
    Evegren, Franz
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Hertzberg, Tommy
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    The quest for a safe use of FRP in shipbuilding2014In: Norsk Komposittforbunds årsmöte. Fredrikstad, Norge. 2014-05-20, Norsk Komposittforbund , 2014, , p. 54Conference paper (Other academic)
  • 226.
    Evegren, Franz
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Hertzberg, Tommy
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Rahm, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Fire Tests of FRP Composite Ship Structures2016Report (Refereed)
    Download full text (pdf)
    FULLTEXT01
  • 227.
    Evegren, Franz
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Hertzberg, Tommy
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Rahm, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    LASS-C, Lightweight construction of a cruise vessel2011Report (Refereed)
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    FULLTEXT01
  • 228.
    Evegren, Franz
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Piku Amen, Malika
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Hjortberg, Mats
    Förstudie till projekt för ekologisk ö-färja2012In: Skärgårdsredaren, Vol. 69, p. 18-19Article in journal (Other (popular science, discussion, etc.))
  • 229.
    Evegren, Franz
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Rahm, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Preliminary analysis report – Eco-Island ferry2015Report (Refereed)
    Download full text (pdf)
    FULLTEXT01
  • 230.
    Evegren, Franz
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Rahm, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Arvidson, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Hertzberg, Tommy
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Fire testing of external combustible ship surfaces2014In: Proceedings of 11th International Symposium on Fire Safety Science. Christchurch, New Zealand. 2014-02-13, International Association for Fire Safety Science , 2014, Vol. 11, p. 905-918Conference paper (Refereed)
    Abstract [en]

    Reduced weight makes use of fiber reinforced polymer composite desirable in maritime construction applications. Exterior ship surfaces in combustible materials are although not covered by firesafety regulations and their fire protection is therefore a key issue. This paper reports how SP FIRE 105, a standardized test method for testing reaction to fire properties of façade systems, was adjusted and used to evaluate the potential for fire growth on external combustible ship surfaces; in particular fiber reinforced polymer composite surfaces protected with active or passive measures. The trials show that the test method is highly suitable but that some adjustments could be made to reduce uncertainties; in particular to use a gas burner instead of a heptane pool fire source and to add a strong criterion for when to activate active measures. Further efforts should also be made to develop suitable performance criteria, which were suggested to be based on the produced heat and the gas temperatures at the top of the panel.

  • 231.
    Evegren, Franz
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Wickström, Ulf
    Luleå University of Technology, Sweden.
    New approach to estimate temperatures in pre-flashover fires: Lumped heat case2015In: Fire safety journal, ISSN 0379-7112, E-ISSN 1873-7226, Vol. 72, p. 77-86Article in journal (Refereed)
    Abstract [en]

    This paper presents a model for estimating temperatures in pre-flashover fires where the fire enclosure boundaries are assumed to have lumped heat capacity. That is, thermal inertia is concentrated to one layer with uniform temperature and insulating materials are considered purely by their heat transfer resistance. The model yields a good understanding of the heat balance in a fire enclosure and was used to predict temperatures in insulated and non-insulated steel-bounded enclosures. Comparisons were made with full scale experiments and with other predictive methods, including CFD modeling with FDS and the so called MQH relationship. Input parameter values to the model were then taken from well-known literature and the heat release rateswere provided from the experiments. The fire temperature predictions of the model matched very well with experimental data. So did the FDS predictions while the original MQH relationship gave unrealistic results for the problems studied. Major benefits of using the model in comparison with CFD modeling are its readiness and simplicity as well as the negligible computation times needed. An Excel application of the presented pre-flashover fire model is available on request from the author.

  • 232.
    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 rate2016In: Applied Thermal Engineering, ISSN 1359-4311, E-ISSN 1873-5606, Vol. 93, p. 405-415Article in journal (Refereed)
    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.

  • 233.
    Fridolf, Karl
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research. Lund University, Sweden.
    Rail tunnel evacuation2015Doctoral thesis, monograph (Other academic)
  • 234.
    Fridolf, Karl
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Test av vägledande system i en tunnel2015Report (Refereed)
  • 235.
    Fridolf, Karl
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Utrymning i järnvägstunnlar2015In: Brandposten, no 52, p. 6-Article in journal (Other academic)
  • 236.
    Fridolf, Karl
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Frantzich, Håkan
    Fire Protection of Underground Transportation Systems: A Decision Support Tool for Designers and Rescue Services2014In: Proceedings of the SFPE 10th International Conference on Performance-Based Codes and Fire Safety Design Methods, 2014Conference paper (Other academic)
  • 237.
    Fridolf, Karl
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Nilsson, Daniel
    Lund University, Sweden.
    Frantzich, Håkan
    Lund University, Sweden.
    Ronchi, Enrico
    Lund University, Sweden.
    Arias, Silvia
    Lund University, Sweden.
    Människors gånghastighet i rök: Förslag tillrepresentation vid brandteknisk projektering2016Report (Other academic)
    Abstract [en]

    There is limited information about the behavior and movement of people in case of fireevacuation in smoke-filled environments, and there is limited guidance on how peoples’walking speed in smoke can and should be represented in the fire safety design process.In this report, a literature review within this area, and a subsequent recommendation onhow to represent walking speed in both smoke-free and smoke-filled environments ispresented. The recommendation includes three different methods to represent the peoples’walking speed in a life safety verification, depending on how the treatment ofuncertainties is done on an overall level within the analysis. Finally, in the end of thereport, a direction for future research in order to reduce the current uncertainties ispresented.

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  • 238.
    Fridolf, Karl
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Ronchi, Enrico
    Nilsson, D
    Frantzich, H
    The relationship between obstructed and unobstructed Walking speed: Results from an evacuation experiment in a smoke filled tunnel2015In: Proceedings for The 6th International Symposium on Human Behaviour in Fire, 2015Conference paper (Other academic)
  • 239.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Absorption of heat radiation in liquid droplets2011Report (Refereed)
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    FULLTEXT01
  • 240.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Brandt, Jonas
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Brown, L.
    Developing a standard for testing fire extinguishing equipment in bus engine compartments2011In: Mobility, the European public transport magazine, no 18, p. 32-34Article in journal (Other (popular science, discussion, etc.))
  • 241.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    de Benito Sienes, Eugenio
    Andersson, Mats
    Ruuth, Kent
    Dispersion of two-phase jets from accidental releases in hydraulic pipes2011Report (Refereed)
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    FULLTEXT01
  • 242.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Larsson, Anders
    On the use of ion current measurements to detect ignition in the cone calorimeter2008Report (Refereed)
    Abstract [en]

    Measurements of the ion current between two electrodes have been conducted in a premixed propane flame and in a cone calorimeter in order to assess whether the ion current can be used for combustion diagnostics in general and for detection of ignition in a cone calorimeter in particular. It was seen that the ion current responds distinctly to where it is positioned in a propane flame and also to the fuel/air ratio of the flame. In the cone calorimeter the measured ion current shows clearly when ignition occurs. The ignition detected by the ion current measurement agreed with visual inspection. It was also seen that soot deposits on the electrodes do not affect the ion current in such a way the ignition detection could be jeopardized. However, short circuiting could occur if the electrodes were kept in a sooty flame long enough for the soot to completely bridge the gap between the electrodes. The latter scenario is not a problem from an ignition detection point of view since soot growth occurs after ignition has taken place. The general conclusion from the study is that no unforeseen obstacles with the use of ion current measurements in combustion diagnostics were observed.

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    FULLTEXT01
  • 243.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Modin, Håkan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Sundström, Björn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    A comparative study of test methods for assessment of fire safety performance of bus interior materials2013In: Fire and Materials, ISSN 0308-0501, E-ISSN 1099-1018, Vol. 37, no 5, p. 350-357Article in journal (Refereed)
  • 244.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Möller, Kenneth
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Enhanced absorption of fire induced heat radiation in liquid droplets2013In: Fire safety journal, ISSN 0379-7112, E-ISSN 1873-7226, Vol. 55, p. 182-196Article in journal (Refereed)
    Abstract [en]

    The influence of additives on the interaction between radiation from fires and single water droplets has been investigated in detail. A literature study was performed on available information of radiation spectra from different types of fires. Based on this, four reference spectra were proposed that cover most of the different types of radiation that can be expected from fires. These reference spectra were used to compare the effect of different water additives and droplets sizes. Using Mie-theory it was found that increased atomization, down to a diameter limit of 1-10 μm, gives a better volumetric absorption efficiency. Decreasing the diameter further does not lead to improved volumetric absorption since the Rayleigh (small droplet) limit is reached, where the volumetric absorption is independent of diameter. Different additives were investigated with respect to increased absorption in the droplets. It was found, however, that it is not trivial to find non-flammable and non-toxic additives that give a significant improvement in absorption. Carbonated water was a potential candidate but the increased absorption was limited to a very weak band centered at 2300 cm-1. Since this coincides with the strong CO 2 emission band an effect could be seen when carbonated water interacted with radiation from clean flames. The maximum increase in volumetric absorption for carbonated water was 4%, occurring for a droplet diameter of 10 μm. Other additives gave better effects but they were either combustible (carbon nanopowder) and/or toxic to some degree.

  • 245.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Ochoterena, Raul
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    On the mitigation of shock waves by exciting vibrational modes in water droplets2013Report (Refereed)
    Abstract [en]

    The vibrational energy of water droplets has been investigated. Viscosity was neglected and only the lowest order symmetrical vibration, the quadrupole mode with m=0, was considered. An approximative solution was given by Rayleigh in 1879: w_vib=2a^2 ??r_0?^2 where ? is the relative vibration amplitude, ? is the surface tension, and r0 is the droplet radius at equilibrium, that is the radius of the spherical droplet. It was found that this solution agrees with the exact solution within a few percent for moderate values of the relative amplitude ?. The rationale of this study was to investigate whether dissipation of energy from a shock wave, e.g. from an explosion, into vibrational energy of droplets is a mechanism that needs to be considered on order to accurately model explosion mitigation using water mists. Traditionally droplet vibrations are not considered in such models whereas other mechanisms such as translational energy, heating, evaporation, and droplet breakup are considered. A useful parameter for quantifying the relative importance of vibrations as compared to linear acceleration of droplets is the ratio between vibrational and translational kinetic energy. This ratio is given by 3a^2 ?/(?p?r_0 v?_transl^2 ) where vtransl is the translational velocity to which the droplet has been accelerated by the shock front. This ratio is negligible for a particular severe explosion scenario where information on vtransl was available in the literature. For other cases vibrations might be of some significance but detailed information about the specific scenarios is needed to obtain detailed results. More work is needed in order to understand the effect of viscosity and higher order vibrations. Furthermore a model for the excitation of droplet vibrations by shock waves is required for modelling. Finally there is a lack of experimental knowledge on droplet size distribution for water mist interacting with a shock wave.

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  • 246.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Ochoterena, Raul
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Lindström, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Lasermätningar av droppstorleksfördelningen för skärsläckaren2013In: Brandposten, no 49, p. 36-37Article in journal (Other (popular science, discussion, etc.))
  • 247.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Ochoterena, Raul
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Lindström, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Spray characterization of the cutting extinguisher2012Report (Refereed)
    Download full text (pdf)
    FULLTEXT01
  • 248.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Post, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Sundström, Björn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Johansson, Patrik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Strömgren, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Steen-Hansen, Anne
    Storesund, Karolina
    Status summary of cable reaction to fire regulations in Europe2013In: Proceedings of the 62nd IWCS Conference, 2013Conference paper (Refereed)
  • 249.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Sjöström, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Andersson, Petra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Nytt instrument för att mäta termisk påverkan på linjära objekt som t.ex. kablar.2015In: Brandposten, no 53, p. 10-11Article in journal (Other (popular science, discussion, etc.))
  • 250.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Sjöström, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Wickström, Ulf
    Andersson, Petra
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Girardin, Bertrand
    Characterization of the thermal exposure in the EN 50399 cable test apparatus2015Report (Other (popular science, discussion, etc.))
2345678 201 - 250 of 748
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