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Some Observations on Experimental Fires in Enclosures. Part 2. Alcohol and Paraffin Oil.

PB91188888

Publication Date	1971
Personal Author	Tewarson, A.
Page Count	45
Abstract	Burning rates, temperatures, and gaseous products were determined for experimental fires of ethyl-alcohol (64175) and paraffin oil (8012951) in a 0.2 cubic meter partially ventilated enclosure. Both laminar and turbulent modes, as predicted by Spalding's equations, were observed and corresponded to nonboiling and boiling periods respectively, at a constant pan diameter. Four regions, similar to those found for wood fires, were identified. An equation was included which can be used to identify a critical condition which may occur in residential home fires, corresponding to extreme danger. Extension and contraction of the reaction zone were defined on the basis of temperature and product distribution inside the enclosure. Vertical temperature distribution was used to map the shifting of the approximate boundary between hot products and air. The author concludes that the results of the study should be useful to architects in designing ventilation for rooms to minimize hazard to life from lethal atmospheres during fires in homes.
Keywords	Fire tests Ethyl alcohol Alkanes Residential buildings Compartments Room fires Ventilating
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	89B - Architectural Design & Environmental Engineering 89 - Building Industry Technology 81A - Combustion & Ignition
Corporate Authors	Factory Mutual Research Corp., Norwood, MA.; National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Cincinnati, OH.
Document Type	Technical Report
Title Note	Technical rept.
NTIS Issue Number	199116

Some Observations on Experimental Fires in Enclosures. Part 2. Alcohol and Paraffin Oil.

Some Observations on Experimental Fires in Enclosures. Part 2. Alcohol and Paraffin Oil.
PB91188888

Publication Date	1971
Personal Author	Tewarson, A.
Page Count	45
Abstract	Burning rates, temperatures, and gaseous products were determined for experimental fires of ethyl-alcohol (64175) and paraffin oil (8012951) in a 0.2 cubic meter partially ventilated enclosure. Both laminar and turbulent modes, as predicted by Spalding's equations, were observed and corresponded to nonboiling and boiling periods respectively, at a constant pan diameter. Four regions, similar to those found for wood fires, were identified. An equation was included which can be used to identify a critical condition which may occur in residential home fires, corresponding to extreme danger. Extension and contraction of the reaction zone were defined on the basis of temperature and product distribution inside the enclosure. Vertical temperature distribution was used to map the shifting of the approximate boundary between hot products and air. The author concludes that the results of the study should be useful to architects in designing ventilation for rooms to minimize hazard to life from lethal atmospheres during fires in homes.
Keywords	Fire tests Ethyl alcohol Alkanes Residential buildings Compartments Room fires Ventilating
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	89B - Architectural Design & Environmental Engineering 89 - Building Industry Technology 81A - Combustion & Ignition
Corporate Authors	Factory Mutual Research Corp., Norwood, MA.; National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Cincinnati, OH.
Document Type	Technical Report
Title Note	Technical rept.
NTIS Issue Number	199116