摘要
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。
When coming to unit heater, the cogeneration-generating ration is usually regarded as one of the most important performance parameters that are used to evaluate economy of unit heater. It indicates that some main factors, such as through flow efficiency of turbine, heating parameters, have effect on cogeneration. Generally, both conventional method and simplified method of thermal equilibrium are used to compute the ration of cogeneration. However, there are some problems exiting in these two methods. In this paper, based on definition of the ration of cogeneration, a new parameter, characteristic coefficient, has been introduced by using recurrence function, which results in a exact model. A typical example is given in this paper and results show that the new modal has improve significantly both accuracy and the speed of the calculation of the cogeneration generating ration.
出处
《汽轮机技术》
北大核心
2002年第4期210-212,共3页
Turbine Technology
关键词
供热机组
热化
发电率
算法
热电联产
电力系统
cogeneration
the cogeneration generating ration
performance parameters
