... properties of heat transfer, heat reservoir, working fluid, and the theory of heat exchangers, the heat transfer rates ( 1H Q and 2H Q ) released to the heat sink and the heat transfer rates ( 1L Q and ... Finite time exergoeconomic performance optimization 5.1 Optimal distributions of heat conductance If heat conductances of hot- and cold-side heat exchangers are changeable, the profit rate of the ... maximum of L C and 1wf C , respectively; 2minL C and 2maxL C are the minimum and maximum of L C and 2wf C , respectively; and 1H N , 2H N , 1L N and 2L N are the numbers of heat transfer units of...