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- Persson, Henry, et al.
(författare)
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Modelling of foam spread on a burning liquid
- 2001
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Ingår i: Interflam 2001. International Interflam Conference. 9th proceedings. Vol. 1. September 17-19.. - : Interscience Communications Ltd.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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- Anderson, Johan, 1973-, et al.
(författare)
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Assessment of Self-Heating in Wood Pellets by FE Modelling
- 2017
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Konferensbidrag (refereegranskat)abstract
- 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.
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- Gehandler, Jonatan, et al.
(författare)
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Qualitative Risk Analysis of Dangerous Goods with Alternative Propellants
- 2016
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Ingår i: Proceedings from the 4th International Conference on Fire in Vehicles - FIVE 2016. ; , s. 247-248
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- 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.
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- Hogland, William, et al.
(författare)
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Storage of organic materials, solid waste and biofuels - Risks for fires and fire fighting
- 2009
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Climate changes together with the increased scarcity of raw material and natural resources place pressure on politicians, industry and society to optimize energy utilization and material recovery. The recycling and sorting of the solid waste and the need for long and short term storage is therefore steadily increasing as is the development of different types of storageand transportation of biofuels. Many of these stores are or will be located close to settlements, town districts and buildings of high monetary value which will increase the potential risk with associated fires and their effect on public health. Methods for the handling and storing organic materials are many, but whether after a short or long time, these all have a propensity to end up with self ignition. Sweden has increased the number of incinerators for solid waste by almost 40 % during the new millennium. Further, numerous upgrades of old incinerators have been carried out and a large volume of storage of waste fuels is needed. This paper presents experience from storage of waste fuels, risks of fire, and issues associated with fire fighting, emissions, and financial impact. Discussions of future trends for the storage of organic material, waste and biofuels as well as the risk of energy and material loss and environmental pollution by smoke and danger for health are included as well as the need for further knowledge and research.
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