Abstract
This paper describes an application of the theory of self-heating and thermal explosion of the spontaneous ignition of potato chip waste. Long term heating experiments were carried out in thermostats over the temperature range of 30-140°C in an air atmospher. Sample potato chips were set in spherical stainless stell cages of 6, 15, 20, 30, 40, 50, and 70cm diameter and their temperature changes were monitored. Physical parameters of apparent activation energy, and overall heat of reaction value were also estimated by TG-DSC analysis. Thermal conductivity of the bulk sample was measured independently. The correlations between ambient temperature and bulk size of the chips, which lead to the spontaneous-ignition, were estimated experimentally and by theoretical calculations. The estimations showed close coincidence with each other.
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