Abstract

Enhancing the chemical heat absorption capacity is an effective method to increase the total heat sink of the endothermic hydrocarbon fuels to meet the cooling requirements of future high-performance aircraft. Thermal cracking and endothermicity capacity of ndecane were studied under different pressures. The main gas products are small molecular hydrocarbons (methane, ethane, ethylene, etc) and hydrogen, ethylene and propylene are the most abundant components at current experimental conditions. It was found that the influence of pressure on the endothermicity of n-decane is not simple effect of promotion or inhibition. Increasing pressure increases the conversion of the fuel，meanwhile，that also decreases the alkene/alkane ratio which is negative to improve the chemical heat sink of the fuel.

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