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  • 51.
    Boström, Lars
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Ewertson, Cathrine
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Melander, Robert
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Stripple, Håkan
    Solberg, André
    Lund, Peter
    Ellison, Tommy
    Rockdrain – a field and laboratory study of a new drainage system for tunnels2013Report (Refereed)
    Download full text (pdf)
    FULLTEXT01
  • 52.
    Boström, Lars
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Melander, Robert
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Ewertson, Cathrine
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Rockdrain - a Novel System for Water Drainage, Insulation and Fire protection for Tunnels2012In: Proceedings from the Fifth International Symposium on Tunnel Safety and Security, SP , 2012, , p. 721-730Conference paper (Other academic)
  • 53.
    Boström, Lars
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Sundström, Björn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    SP Brandteknik expanderar2012In: Brandposten, no 47, p. 4-Article in journal (Other (popular science, discussion, etc.))
  • 54.
    Boubitsas, Dimitrios
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Durability of concrete with mineral additions2002In: Proceedings of the Nordic Concrete Meeting, Elsinore, Danmark, 2002Conference paper (Other academic)
  • 55.
    Boubitsas, Dimitrios
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Long-term performance of concrete incorporating ground granulated blast furnace slag2004In: Eighth CANMET/ACI International Conference on Fly Ash, Silica Fume, Slag and Natural Pozzolans in Co. Proceedings Eighth International Conference Las Vegas USA 2004 Suppl. Papers, ACI International. ACI Council , 2004, , p. 265-280Conference paper (Refereed)
  • 56.
    Boulet, Pascual
    et al.
    Université de Lorraine, France.
    Parent, Gilles
    Université de Lorraine, France.
    Acem, Zoubir
    Université de Lorraine, France.
    Collin, Anthony
    Université de Lorraine, France.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Bal, Nicolas
    University of Edinburgh, United Kingdom.
    Rein, Guillermo
    University of Edinburgh, United Kingdom.
    Torero, Jose Luis
    University of Edinburgh, United Kingdom.
    Radiation emission from a heating coil or a halogen lamp on a semitransparent sample2014In: International Journal of Thermal Sciences, Vol. 77, no March, p. 223-232Article in journal (Refereed)
    Abstract [en]

    The radiation emission of the heating coil of a Cone Calorimeter and the one of the halogen lamp of a Fire Propagation Apparatus have been studied experimentally for varying power settings. These are two standard apparatuses used for fire calorimetry. The objective is to characterize and compare the radiative flux spectrum received by a fuel sample during pyrolysis experiments. The deviation from the standard assumption of black or gray emission is discussed. It is observed that the emission of the heating coil can be approximated well to an ideal blackbody, especially in the infrared range. On the contrary, the halogen lamp emission is more complex, non gray, with an important contribution in the visible and in the near infrared ranges. The flux received by a sample exposed to these emitters is predicted using ray tracing simulations. This shows that the irradiation flux and spectrum from the cone can be accurately calculated if the coil temperature is known. The non Lambertian irradiation flux from the lamp is modeled with a combination of diffuse and collimated intensities, representing the direct emission from the lamp itself and the reflection by the mirror at the rear side. For both emitters, the irradiation is confirmed to be approximately uniform over the surface of a sample 5 cm large (maximum deviation of ±2% on the incident flux). The uniformity decreases for larger samples, but the ratio of the flux at the center to average flux is still 1.04 for standard 10 cm × 10 cm samples under the cone. For illustration purposes, the influence of the spectral characteristics of the emitter is studied in the case of a sample of PMMA, a non gray translucent medium. Using recently published measurements of PMMA absorptivity, the absorbed flux by a 3 cm thick sample is predicted. In the case of an incident flux of 20 kW/m2, the calculated average absorptivity of the sample is 0.91 under the cone, while it is 0.32 under the FPA lamp. These calculations involve absorption data of a virgin sample at room temperature and consequently the numerical results only hold for the initial instants of irradiation. However, the very large differences in radiative behavior show that important discrepancies in the pyrolysis behavior are expected between the two emitters. This might have consequences for fire testing and inter comparisons of flammability results worth further investigation.

  • 57.
    Brandt, Jonas
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    New International Test Method for Fire Suppression Systems in Bus and Coach Engine compartments2012In: Proceedings from 2nd International Conference on Fires in Vehicles - FIVE 2012, SP , 2012, , p. 235-244Conference paper (Other academic)
  • 58.
    Brandt, Jonas
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Testing active fire protection systems for engine compartments in buses and coaches: a pilot study2011Report (Refereed)
    Download full text (pdf)
    FULLTEXT01
  • 59.
    Brandt, Jonas
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Modin, Håkan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Rosén, Fredrik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Brandmotstånd.
    Försth, Michael
    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.
    Test Method for Fire Suppression Systems in Bus and Coach Engine Compartments2013Conference paper (Refereed)
    Abstract [en]

    This paper presents a recently developed method meant to act as a tool for objectively assessing and comparing the performance of automatic fire suppression systems. This methodology specifies requirements and procedures for evaluating the efficiency and performance of automatic fire suppression systems permanently installed in the engine compartments of buses and coaches. The testing is done according to SP method 4912 and carried out in a test enclosure where the fire performance of different suppression systems can be objectively assessed in a well-defined way. The test methodology includes a battery of fire tests simulating different engine loads, air flows and fire scenarios. Every tested system is rated according to its performance. The test method also includes testing of re-ignition due to hot surface ignition of liquid fuels.

  • 60.
    Brandt, Jonas
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Willstrand, Ola
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Ochoterena, Raul
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Rakovic, Alen
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Detection of fires in Heavy Duty (HD) vehiclesIn: Enhanced Safety of Vehicles ESV2015, , p. 15-0074-WConference paper (Other academic)
  • 61.
    Cooper, Barry J.
    et al.
    University of South Australia, Australia.
    Marker, Brian R.
    Pereira, Dolores
    University of Salamanca, Spain.
    Schouenborg, Björn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Establishment of the "Heritage Stone Task Group" (HSTG)2013In: Episodes, ISSN 0705-3797, Vol. 36, no 1, p. 8-10Article in journal (Refereed)
  • 62.
    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)
    Download full text (pdf)
    FULLTEXT01
  • 63.
    Ekvall, Annika
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Screening av grundämnen i sjökalk2006Report (Refereed)
    Abstract [en]

    The Swedish Environmental Protection Agency has laid down limit values for ten metals in liming products destined for acid lakes and wetlands. However, there are many more metals which may be present in the liming products. Another project, Leaching Properties of Natural Aggregate (RVF report 2006:6 and Värmeforsk report 961) showed that the three liming materials included in this project contained measurable concentrations of many more metals. Particularly the concentration of arsenic was comparably high. The present project aimed to give an overview of the metal concentration on liming products. Almost all stable elements have been analysed with a semi-quantitative scanning method. The result shows that 48 elements are present in measurable concentrations and 16 are not. The high concentrations of arsenic from the Leaching Properties project could however not be repeated.

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    FULLTEXT01
  • 64.
    Ekvall, Annika
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Lorentzon, Katarina
    RISE Research Institutes of Sweden, Built Environment, System Transition and Service Innovation.
    Nordberg, Åke
    Hannerz, Nils
    Hantering av förpackat livsmedelsavfall2006Report (Refereed)
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    FULLTEXT01
  • 65.
    Ekvall, Annika
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    von Bahr, Bo
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Wällstedt, Teresia
    Borg, Hans
    Föroreningar i kalk – förekomst och miljöeffekter - Förprojekt2007Report (Refereed)
  • 66.
    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)
  • 67.
    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)
    Download full text (pdf)
    FULLTEXT01
  • 68.
    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.

  • 69.
    Ewertson, Cathrine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Schouenborg, Björn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Provningsmetoder anpassade för återvinningsprodukter. Del 2 - sprödhet. Nordtest technical report 440. Nordtest project 1393-972000Report (Refereed)
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    fulltext
  • 70.
    Ewertson, Cathrine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Utgenannt, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Konsistensförlust hos anläggningsbetong2007Report (Refereed)
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    FULLTEXT01
  • 71.
    Flansbjer, Mathias
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).
    Lindqvist, Jan-Erik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Visual assessment of fire damaged concrete2011In: BrandPosten, no 44, p. 12-13Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Fire can reduce the load-carrying capacity of concrete structures. A new innovative method, Optical Deformation Measurement, can be used to determine how far into the concrete damage has penetrated. The method involves measurements on test cores from the damaged structure.

  • 72.
    Flansbjer, Mathias
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).
    Lindqvist, Jan-Erik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Johansson, Gabriel
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Löfgren, Michael
    Port of Gothenburg, Sweden.
    Mechanical behaviour of concrete piles affected by sulphate attack2013In: Proceeding of the International IABSE Conference:, 2013, , p. 4p. 389-392Conference paper (Refereed)
    Abstract [en]

    Assessing the remaining service life is vital for the planning of maintenance of concrete constructions in aggressive environments. Here we present results from testing of two concrete piles affected by sulphate attack in marine environment. A multi-method approach going from micro scale to structural level has been applied. The crack propagation was monitored during loading by means of DIC and AE. After the test crack patterns was studied using fluorescence microscopy. Furthermore, non-linear finite element analysis at the structural level was used to study the influence of the chemical attack on the response of concrete piles.

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    fulltext
  • 73.
    Flansbjer, Mathias
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).
    Lindqvist, Jan-Erik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Silfwerbrand, Johan
    Quantitative fracture characteristics in shear load2011Conference paper (Other academic)
    Abstract [en]

    Today, no general design method for shear strength capacity of RC beams can predict the failure load with a high degree of accuracy. The failure load between two beams cast from the same batch may vary as much as 30 percent. This project aims at investigating factors affecting the shear strength capacity based on an understanding of micro and meso scale material properties. Tests were performed on beams with two different types of aggregate and two different w/c. The crack propagation was monitored during the loading by means of DIC and AE. The results show that the use of natural aggregates or crushed aggregates as finer fractions strongly affect the shear strength capacity. From direct shear tests it was found that the scatter of the shear strength was much higher for the specimens with natural aggregates compared with crushed aggregates. The same tendency was found for the shear crack initiation load for the RC beams. The percentage of fractures propagating through aggregate, paste and the ITZ varied with w/c, type of aggregate and type of failure. Microscopy in combination with DIC and AE measurements makes it possible to determine at what stage different cracks have been formed and their relation to the micro structure.

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    fulltext
  • 74.
    Försth, Michael
    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 materials2009Report (Refereed)
    Download full text (pdf)
    FULLTEXT01
  • 75.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Brand ger oväntad påverkan på absorption av strålning2011In: Brandposten, no 44, p. 14-15Article in journal (Other (popular science, discussion, etc.))
  • 76.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Bränder vanliga i bussar2010In: BrandPosten, no 42, p. 6-7Article in journal (Other (popular science, discussion, etc.))
  • 77.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Bus fire safety - state of the art and new challenges2014In: Proceedings from 3rd International Conference on Fire in Vehicles - FIVE 2014, 2014, , p. 39-50Conference paper (Other academic)
  • 78.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    European joint calibration for fire testing of cables2007In: BrandPosten, no 36, p. 29-Article in journal (Other (popular science, discussion, etc.))
  • 79.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Europeisk samkalibrering för brandprovning av kablar2007In: BrandPosten, no 36, p. 6-Article in journal (Other (popular science, discussion, etc.))
  • 80.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Explosionsrisker med oljedimma2012In: Brandposten, no 46, p. 38-39Article in journal (Other (popular science, discussion, etc.))
  • 81.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Fires are common in busses2010In: BrandPosten, no 42, p. 6-7Article in journal (Other (popular science, discussion, etc.))
  • 82.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Last stop?2013In: Fire Risk Management, ISSN 1757-1324, no Dec-Jan, p. 42-47Article in journal (Refereed)
  • 83.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    New laser to measure flow fields2008In: BrandPosten, no 37, p. 19-Article in journal (Other (popular science, discussion, etc.))
  • 84.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    New method of investigating ignition2009In: BrandPosten, no 40, p. 24-Article in journal (Other (popular science, discussion, etc.))
  • 85.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Ny laser för att mäta flöden2007In: BrandPosten, no 37, p. 35-Article in journal (Other (popular science, discussion, etc.))
  • 86.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Ny metod för att studera antändning2009In: BrandPosten, no 40, p. 24-Article in journal (Other (popular science, discussion, etc.))
  • 87.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    On the importance of spectrally resolved absorptivity data in fire technology2009Report (Refereed)
    Abstract [en]

    Radiation is one of the two main heat transfer processes in transporting energy from flames to a surface. The other process is convection and was not considered in this report. The spectral absorptivity of 72 products was measured in the wavelength region 0.3-20 mm. This wavelength region contains virtually all radiation energy from a fire. Based on the measurements, and on the theory for radiative heat transfer, the effective absorptivity for fire induced heat radiation for the different products were calculated. These typically lies in the range 0.75-0.95. It was also found that the effective absorptivity varies significantly with the temperature of the heat source. The reason for this is that the spectrum of the emitted radiation from a heat source, such as a fire, changes with temperature. This has limited effect on the heating of a surface. The dependence of the effective absorptivity on heat source temperature is important when the absorptivity is used as input for calculations of ignition temperature and thermal inertia. Using existing models for predicting ignition temperature and thermal inertia, and correcting these models with the new information on effective absorptivity, it could be shown that the effects were significant but not very large. It was considered that the uncertainties in the model are so high that corrections for the effective absorptivity might be of minor importance compared to the other uncertainties and assumptions. An interesting observation was that the absorptivity of radiation from fires for products exposed to irradiation in the cone calorimeter decreased with increased exposure time, that is, the absorptivity decreased when the products darkened due to heat. This is surprising since, for example, wood that is darkened when exposed to heat obviously has a higher absorptivity in the visual part of the spectrum than fresh non-darkened wood. This is an important observation since it opposes the general view that heat transfer increases with increased thermal exposure due to darkening Finally, it was concluded that none of the studied materials showed a particularly low absorptivity in the infrared region and therefore none of the products stands out as particularly good reflector of radiation from fires. Several ideas were presented for how such spectrally tailored surfaces, with low absorptivity for radiation from fires, can be produced.

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  • 88.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Optimering av strålningsabsorption hos vattendimma2012In: Brandposten, no 46, p. 41-Article in journal (Other (popular science, discussion, etc.))
  • 89.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Tragic coach fire in Germany shows the need for new test methods2008In: BrandPosten, no 39, p. 20-Article in journal (Other (popular science, discussion, etc.))
  • 90.
    Försth, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Tragisk bussbrand i Tyskland visar behovet av nya provningsmetoder2008In: BrandPosten, no 39, p. 20-Article in journal (Other (popular science, discussion, etc.))
  • 91.
    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.))
  • 92.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Larsson, Anders
    Ion current measurements as a tool for ignition detection in the cone calorimeter2010In: Fire and Materials, no 34, p. 421-428Article in journal (Refereed)
  • 93.
    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)
  • 94.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Möller, Kenneth
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Enhanced absorption of fire induced heat radiation in liquid droplets2013In: Fire Safety Journal, Vol. 55, p. 182-196Article in journal (Refereed)
  • 95.
    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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  • 96.
    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.))
  • 97.
    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
  • 98.
    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)
  • 99.
    Försth, Michael
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm).
    Roos, Arne
    Absorptivity and its dependence on heat source temperature and degree of thermal breakdown2011In: Fire and Materials, Vol. 35, p. 285-301Article in journal (Refereed)
  • 100.
    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.))
1234567 51 - 100 of 505
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