TY - JOUR PY - 2021// TI - The character of residential cooktop fires JO - Journal of fire sciences A1 - Hu, Yue A1 - Chen, Jian A1 - Bundy, Matthew A1 - Hamins, Anthony SP - 142 EP - 163 VL - 39 IS - 2 N2 - A series of experiments was conducted to investigate the global preignition and combustion characteristics of corn oil heated in 9.7 to 26 cm diameter pans by a residential electric-coil element cooktop. For comparison, torch-ignited gasoline, heptane, and corn oil experiments were conducted in the same configuration except without the heating element energized. Heating oil on a typical electric cooktop leads to vaporization and generation of an aerosol cloud followed by autoignition. The evolution of the light-extinction coefficient before autoignition is measured and shown to be related to the pan diameter and initial fuel mass. Continued heating leads to enhanced vaporization of the burning oil and growing fires with the peak heat release rate, radiative heat flux, radiative fraction, and peak flame height larger than the gasoline fires regardless of pan diameter. CO and soot yields, and the CO/CO2 ratio are measured to decrease with pan diameter.

Language: en

LA - en SN - 0734-9041 UR - http://dx.doi.org/10.1177/0734904121990392 ID - ref1 ER -