Studies on bubble pump for a water-lithium bromide vapour absorption refrigerator

被引：50

作者：

Pfaff, M ^{[1
]}

Saravanan, R ^{[1
]}

Maiya, MP ^{[1
]}

Murthy, SS ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Mech Engn, Refrigerat & Airconditioning Lab, Madras 600036, Chennai, India

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 1998年 / 21卷 / 06期

关键词：

refrigeration system; absorption systems; pump; water-lithium bromide;

D O I：

10.1016/S0140-7007(98)00006-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The hydrostatic principle and bubble pump technique are used in the two-fluid pumpless continuous vapour absorption refrigerator to create the circulations of the solution and refrigerant. In this paper, the bubble pump, which is the 'heart' of this natural circulation type of refrigerator, has been investigated both analytically and experimentally. The bubble pump is modelled for intermittent slug flow of solution and vapour mixture. A test rig is built in glass to evaluate the performance of the bubble pump, to visualize the flow behavior and to validate the analytical model. Bubble pump tube diameter, pump lift, driving head and heat input are varied to analyze the pump performance. Results indicate that pumping ratio is nearly independent of the heat input, but increases with decrease in pump tube diameter, decrease in pump lift and increase in driving head. (C) 1998 Elsevier Science Ltd and IIR. All rights reserved.

引用

页码：452 / 462

页数：11

共 24 条

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