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用半自动等温外夹套大块型铜热量计测定了辽河原油１０个馏分的高温液体焓值。量热装置用α－Ａｌ２Ｏ３标定，用ＴｉＯ２和正庚烷校验可靠性。原油馏分系实沸点蒸馏得到，文中给出各馏分焓与温度的关联式，关联值和实验值的偏差在±１．６％范围内。还对６个焓值的计算式进行了考察，并提出一个简单的计算式，偏差为４．１％．
The enthalpy of high temperature liquid in 10 fractions of Liaohe crude oil was determined by semi-automatic isothermal external jacket copper calorimeter. Calorimetry was calibrated with alpha-Al2O3 and the reliability was checked with TiO2 and n-heptane. Crude oil distillate is obtained by distillation of the solid boiling point. The correlation between the enthalpy and temperature of each fraction is given. The deviation between the correlation value and the experimental value is within ± 1.6%. The calculation formulas of the six enthalpy values were also examined, and a simple calculation formula was proposed with a deviation of 4.1%.