采用曲线拟合的计算方法,拟合了一组与本计算有关的水和水蒸气热物性参数(比容、焓和熵)的经验公式,从而整理出汽轮机相对内效率的一种简化计算方法。 The curve fitting method is used to fit a set of empirical formulas of thermal and physical parameters of water and steam (specific volume, enthalpy and entropy) related to this calculation, so as to sort out a simplified calculation method of the relative internal efficiency of the steam turbine .