- Bejan, Adrian, GENERAL CRITERION FOR RATING HEAT-EXCHANGER PERFORMANCE.,
International Journal of Heat and Mass Transfer, vol. 21 no. 5
pp. 655 - 658 [0017-9310(78)90064-9] .
(last updated on 2007/04/08)
The use of irreversibility as a criterion for evaluation of the efficiency of a heat exchanger is demonstrated. The purpose is to minimize the wasted energy by optimum design of fluid passages in a heat exchanger. The interrelationship between the losses caused by heat transfer across the stream-to-stream due to differences in temperatures and losses caused by fluid friction was studied. A proposal is made to use the number of entropy production units as a basic yardstick in describing the heat exchanger performance.