关于热力计算矩阵法的两个问题的研究

Research of two problems about matrix method of thermal power calculating

对热力计算矩阵法的基准流量的选定和末几级抽汽湿蒸汽焓及排汽焓的确定两个问题进行研究。首次选用主凝结水流量作为矩阵法的基准流量,减少了因选用给水流量作为基准流量的计算误差;对于末几级抽汽焓及排汽焓的确定,综合了ASMEPTC6A1982的两种方法及矩阵理论,提出了自己的解决方法。这些方法已在在线分析软件中实现,并为实际计算所证明。

Two problems about matrix method of thermal power calculating were researched and corresponding methods were given in this paper One problem is to choose criterion flux,the other problem is to calculate the enthalpy of the later several levels wet extracted steam and exhaust steam The error is reduced because main condensate is selected as criterion flux of matrix method;The enthalpy of the later several levels wet extracted steam and exhaust steam can be calculated by integrating two methods of ASME PTC6A and matrix method,These methods have been realized in on line analysising software,and the result is right