水面に浮遊した燃料の液面燃焼 : 第1報,水の沸騰による燃焼率の変化

概要

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Under certain circumstances, the water on which a burning pool of liquid fuel is supported may begin to boil. The bubble of water vapor that is released and escapes through the fuel surface tends to chenge the temperature distribution in the fuel layer and sometimes to atomize the fuel which results in a boilover of the burning liquid fuel. A pool fire system, in which the burning surface of the fuel was fed into the flame so that a boiling water sublayer could be oberved, was designed to invstigate the effect of water sublayer on the burning phenomena of the liquid fuel layer. Data obtained incrude temperature and mass loss history of the liquid fuel and water, flame hight, and irradiance from the flame. Results show that when boiling occurs, the temperature gradient across the fuel layer vanishes, the temperature level of the fuel decreases, and the burning rate of the fuel decreases. Because water-vapor bubbles released from the fuel-water interface stir the fuel layer as they pass upward through it.
一般社団法人日本機械学会の論文
1990-06-25