New method for COP optimization in water- and air-cooled single and double effect LiBr-water absorption machines

被引：49

作者：

Marcos, J. D. ^{[1
]}

Izquierdo, M. ^{[2
,3
]}

Palacios, E. ^{[4
]}

机构：

[1] UNED, Escuela Tecn Super Ingn Ind, Madrid 28040, Spain

[2] Inst Ciencias Construcc Eduardo Torroja CSIC, Madrid 28033, Spain

[3] Univ Carlos III Madrid, Escuela Politecn Super, Madrid 28911, Spain

[4] Univ Politecn Madrid, Escuela Univ Ingn Tecn Ind, Madrid 28012, Spain

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2011年 / 34卷 / 06期

关键词：

Condenser; Water-cooled; Air-cooled; Absorption system; Lithium bromide; COP; Simulation; REFRIGERATION SYSTEMS; SOLAR; CYCLES;

D O I：

10.1016/j.ijrefrig.2011.03.017

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this work a new method to optimize the COP in water- and air-cooled single and double effect LiBr/H2O absorption chillers is proposed. This method determines the effect of condensation temperatures and the solution concentration variation on COP, clearly defining the crystallization limit for different scenarios. This limit is especially important in the design of air-cooled chillers. Taking this into account a simulation program has been developed to calculate the optimum COP. In the case of parallel flow double effect chillers this program estimates not only the optimum COP but also the percentage of refrigerant vapour generated in the high and low temperature desorbers in terms of the condensation temperature. Additionally it provides the mass flow of the solution that should be distributed to each desorber to attain the desired variation in solution concentration. (C) 2011 Elsevier Ltd and IIR. All rights reserved.

引用

页码：1348 / 1359

页数：12

共 33 条

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