30 May 2005

EXPERIMENTAL STUDY ON HEAT TRANSFER ENHANCEMENT OF A NEW HEAT EXCHANGER FOR A HEAT PUMP SYSTEM


We have designed experiment system of heat pump, and the heat transfer capability of R417a in
corrugation inner wing heat exchanger was studied experimentally. Mechanism of the heat transfer
enhancement was analyzed theoretically. The experimental results showed that heat transfer enhancement
by corrugation inner wing heat exchanger improve heat transfer effect of the heat transfer, that the overall
heat transfer coefficient of heat exchanger increase with the increasing of heat flux, that its overall heat
transfer coefficient is higher than that of common shell and tube heat exchanger at the same specific rate
of heat flow.