Internal energy and exergy recovery in high temperature application absorption heat transformers

被引：33

作者：

Donnellan, Philip ^{[1
]}

Byrne, Edmond ^{[1
]}

Cronin, Kevin ^{[1
]}

机构：

[1] Natl Univ Ireland Univ Coll Cork, Dept Proc & Chem Engn, Cork, Ireland

来源：

APPLIED THERMAL ENGINEERING | 2013年 / 56卷 / 1-2期

关键词：

Absorption heat transformer; Triple stage heat transformer; Heat exchange network; Heat recovery; Water-lithium bromide; Exergy; SINGLE-STAGE; WATER/LITHIUM BROMIDE; PERFORMANCE; WATER;

D O I：

10.1016/j.applthermaleng.2013.03.027

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, the design of a triple absorption heat transformer (TAHT) using the working fluids water and lithium bromide is dissected and reassembled using heat exchange network modelling in order to determine the optimum number and locations of internal heat exchange units within the system. It is found that the conventional design of the TAHT does not employ heat exchangers effectively, and that thus by rearranging these units system COP may be increased by 11.7% while exergy destruction within the system (its irreversibility) can be reduced by 21%. Strategically adding an extra one or two heat exchangers increases the COP by 16.4% and 18.8% while decreasing exergy destruction by 28% and 31.5% respectively compared to a conventional TAHT design. (c) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1 / 10

页数：10

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