With the notion of effective exergy drop based on equivalent enthalpy drop theory, mathematic models of exothermic steam perturbation effect on the whole thermodynamic system were founded.
基于等效焓降理论提出了有效降的概念，建立了当抽汽量扰动时对整个热力系统影响的数学模型。
The improved cyclical function method is analyzed quantitatively through using the theory of the equivalent enthalpy drop and the real-time thermal consumption analysis can done.
并应用等效焓降理论对循环函数的定量分析加以改进，进行了耗差分析。
The result shows that the error of thermodynamics method and steam turbine theory method are very big except the equivalent enthalpy drop method.
比较结果表明，除等效热降法外，热力学方法和汽轮机原理方法的计算误差都很大。
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