水蒸气焓熵的模型化计算

摘要

采用基于M－H－th建立的改进水蒸气状态方程，导出了水蒸气的焓、熵模型计算公式。除临界点附近外，该模型与文献实验数据偏差很小，特别适合于水蒸气压力不超过20MPa工程上的焓熵模型化计算。%Based on M-H-th, the water vapor equation was established and the enthalpy and entro-py model of water vapor were derived.In addition to the critical point, the deviation of the model and the experimental data was small, especially suitable for the calculation of the enthalpy entropy model of the water vapor pressure in the 20MPa project.