热经济学成本分析中补充方程的合理构造

RESONABLE STRUCTURE OF SUPPLEMENTARY EQUATION USED FOR COST ANALYSIS IN THERMAL ECONOMICS

运用热经济学方法进行成本分析时 ,构造合理的补充方程是求得科学、合理的产品成本的关键。原有补充方程认为燃料双线流的火用单价相等 ,而不论该火用流的品质高低。为了充分体现不同质不同价的经济规则 ,引入了能质系数的概念 ,并将其应用于新的补充方程中 。

During the time of carrying out cost analysis by using method of thermal economics, resonable structure of supplementary equation is a key factor for obtaining scientfic and correct results of products' cost. The original supplementary equation consider that both the inlet and outler fuels have same unit price of exergy, regardless the level of their quality. In order to express the economic rule of different quality and different price, a concept of energy quality coefficient has been introduced and used in the structure of newly created supplementary equction, so as to make the cost analysis to be more scientific and resonable.