Performance study of a falling-film absorber with a film-inverting configuration

被引：73

作者：

Islam, MR ^{[1
]}

Wijeysundera, NE ^{[1
]}

Ho, JC ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech Engn, Singapore 119260, Singapore

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2003年 / 26卷 / 08期

关键词：

absorption system; absorber; falling-film; design; simulation; performance;

D O I：

10.1016/S0140-7007(03)00078-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper describes the development of a novel film-inverting design concept for failing-film absorbers. The solid surface of the absorber is segmented so that both surfaces of the failing-film are alternatively cooled in a periodic manner. A conventional tubular absorber is modified by introducing film-guiding fins between tubes to produce a film-inverting arrangement. A maximum increase in vapour absorption rate of about 100% is obtained with the film-inverting design compared to the tubular absorber. The numerical simulation indicates that the vapour absorption rate can be increased by using a large number of film-inverting segments in the absorber. (C) 2003 Elsevier Ltd and IIR. All rights reserved.

引用

页码：909 / 917

页数：9

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