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热化发电率是评价供热机组经济性的一个指标 ,它能够表现供热机组通流效率、回热效果、供热参数和回水状况对热电联产效果的影响。根据热化发电率的定义 ,比较了现有的热平衡计算、简化计算方法中存在的问题 ,利用循环函数方法中推导出的特性系数 ,解决了热化发电率的精确计算模型。算例表明 ,新算法模型计算简捷、结果准确。
Thermal power generation rate is an index to evaluate the economy of heating unit. It can show the effect of heating unit flow efficiency, heating effect, heating parameters and backwater on cogeneration effect. According to the definition of thermal power generation rate, the existing thermal balance calculation is compared to simplify the existing problems in the calculation method, and the exact calculation model of thermal power generation rate is solved by using the characteristic coefficient deduced from the cyclic function method. The example shows that the new algorithm model is simple and the result is accurate.