SMALL-DIAMETER HEAT TRANSFER TUBE UNIT FOR SMALL-DIAMETER MULTITUBULAR HEAT EXCHANGER

摘要

PROBLEM TO BE SOLVED: To further improve the heat exchanging performance of a small-diameter multitubular heat exchanger by using a heat transfer accelerating member.;SOLUTION: Cut and raised pieces 45a, 45b and 45c such as slits and louvers formed on a heat transfer fin 42 are formed into approximate squares, and a wide and large heat transfer area for sufficiently transferring heat to a central portion of the fin is secured, thus effective heat transfer acceleration is enabled without unreasonably impairing the efficiency of the fin.;COPYRIGHT: (C)2006,JPO&NCIPI