Fire/Arson Investigations : Fire/Arson Investigations
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Re: Ignition temperature of wood
Posted by: dcarpenter (IP Logged)
Date: September 28, 2020 08:10AM
I am unaware of any reliable experiments that have shown that "pyrophoric carbon" is an actual phenomenon.
I am unaware of any reliable experiments that have shown wood is capable of self-heating to thermal runaway with dimensional lumber at these low temperatures.
All of the testing and theory assumes that the exposure temperature is constant. An alternative hypothesis is that the exposure temperature is not constant and increases by an insulating enclosure and increasing the trapped air that can increase in temperature.
Douglas J. Carpenter, MScFPE, CFEI, PE, FSFPE
Vice President & Principal Engineer
Combustion Science & Engineering, Inc.
8940 Old Annapolis Road, Suite L
Columbia, MD 21045
(410) 884-3266
(410) 884-3267 (fax)
www.csefire.com
I am unaware of any reliable experiments that have shown wood is capable of self-heating to thermal runaway with dimensional lumber at these low temperatures.
All of the testing and theory assumes that the exposure temperature is constant. An alternative hypothesis is that the exposure temperature is not constant and increases by an insulating enclosure and increasing the trapped air that can increase in temperature.
Douglas J. Carpenter, MScFPE, CFEI, PE, FSFPE
Vice President & Principal Engineer
Combustion Science & Engineering, Inc.
8940 Old Annapolis Road, Suite L
Columbia, MD 21045
(410) 884-3266
(410) 884-3267 (fax)
www.csefire.com
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