In the present work, thermal properties of hydrocarbon fuels including commercial fuels like diesel fuel (DF2), jet propulsion fuel JP5 and automotive gasoline (AG) are evaluated at temperatures and pressures prevailing in internal combustion engines and gas turbines. Properties calculated include density, viscosity, thermal conductivity, specific heat and mass diffusivity. A detailed methodology is evolved by developing subroutines (computer codes) for determining fuel properties at sub and supercritical conditions (pressure range: 1 bar–100 bar; temperature range: 300 K–1000 K). It is observed that estimated properties are sensitive to reduced pressure and temperature of the given fuel. Polynomial forms for determining these properties as a function of temperature and pressure for each fuel are also developed which are quite accurate and simple to use.

中文翻译：

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通过开发的计算机代码评估商用燃料在高温高压下的热性能

在当前的工作中，在内燃机和燃气轮机中普遍存在的温度和压力下，对包括商用燃料（如柴油燃料（DF2），喷气推进燃料JP5和汽车汽油（AG））在内的碳氢燃料的热性能进行了评估。计算的特性包括密度，粘度，导热系数，比热和质量扩散系数。通过开发用于确定亚临界和超临界条件（压力范围：1 bar–100 bar；温度范围：300 K–1000 K）下的燃料特性的子例程（计算机代码），演变出了详细的方法。观察到，估计的特性对给定燃料的减压和温度敏感。