【Key words】 thermodynamic system； equivalent enthalpy drop method； state equation； thermo-economy；
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This paper used equivalent enthalpy drop method and thermodynamic system state equation to calculate the thermo-economy indicators of the 600MW supercritical unit thermodynamic system in Ningde power plant.
本文针对宁德电厂600MW超临界机组热力系统,采用等效热降法和热力系统状态方程对其的热经济性进行了计算分析,经过详细的计算得出各项热经济性指标。
参考来源 - 宁德600MW超临界机组热力系统热经济性分析As the same time, aiming at the shortcoming of equivalent enthalpy drop method, the improved equivalent enthalpy drop method is given, and the reasonableness of the improved equivalent enthalpy drop method is proved.
同时,针对等效热降法的缺点,提出改进算法,并对改进的等效热降法的合理性进行了证明。
参考来源 - 汽轮机运行热经济性诊断方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Then based on the improved ideal cycle heat efficiency, the improved equivalent enthalpy drop method is given.
然后，基于改进的理想循环热效率，提出了等效热降法的改进算法。
Compared with the equivalent enthalpy drop method, these algorithms are more effective in dealing with the idiographic problems.
与等效焓降法相比，它们在具体问题和要求上更有针对性。
So the equivalent enthalpy drop method is suggested to calculate the change of electric power with back pressure changing in engineering.
因此，建议工程上可以采用等效热降法计算背压变化时汽轮发电机组电功率的变化量。
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