Enhanced heat exchange tube

Details Enhanced heat exchange tube Enhanced heat exchange tube

1998-09-24

2000-12-26

Leo, Leonard

Heat exchange

With coated, roughened or polished surface

165184, F28F 140

Patent

active

06164370&

ABSTRACT:
A heat exchange tube for air conditioning and refrigeration applications is internally enhanced with helically arranged fins. The fins are separated from adjacent fins by a trough. The heat transfer coefficient is increased by forming the fins with a height-to-trough width ratio, h:T, of from 1.3:1 to 2.5:1. A further gain in heat transfer coefficient is achieved by fins having a normalized height (fin height/tube inside diameter) of at least 0.02.

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patent: 5259448 (1993-11-01), Masukawa et al.
patent: 5332034 (1994-07-01), Chiang et al.
patent: 5791405 (1998-08-01), Takiura et al.
patent: 5803165 (1998-09-01), Shikazono et al.

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