经济系数在制冷方案选择中的应用

Exergy-economic coefficient in selection of refrigeration system

考虑能量利用的完善性（佣效率）和合理性（能级匹配），提出了佣经济系数的表达式，并把其作为制冷方案选择的依据，对三种制冷方案进行了佣经济性的计算比较。得出的结论与只考虑经济性或只考虑佣效率时得出的结论截然不同，而这一结论更符合节能的目的。

The expression of the exergy-economic coefficient is proposed.On the base of the exergy-economic coefficient ,disscusses the selection of refrigeration system,calculates and compares the exergy-economic coefficients of three kinds of refrigeration systems.Conclusion from this method is more agreed with the requirments of energy economy.