Optimum hot water temperature for absorption solar cooling

被引：61

作者：

Lecuona, A. ^{[1
]}

Ventas, R. ^{[1
]}

Venegas, M. ^{[1
]}

Zacarias, A. ^{[2
]}

Salgado, R. ^{[1
]}

机构：

[1] Univ Carlos III Madrid, Dpto Ingn Term & Fluidos, Madrid 28911, Spain

[2] IPN, ESIME UPA, Mexico City 02550, DF, Mexico

来源：

SOLAR ENERGY | 2009年 / 83卷 / 10期

关键词：

Solar cooling; Optimum generator temperature; Absorption chiller; Characteristic equation; Characteristic temperature difference; Air conditioning; IRREVERSIBLE-THERMODYNAMIC MODEL;

D O I：

10.1016/j.solener.2009.06.016

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The hot water temperature that maximizes the overall instantaneous efficiency of a solar cooling facility is determined. A modified characteristic equation model is used and applied to single-effect lithium bromide-water absorption chillers. This model is based on the characteristic temperature difference and serves to empirically calculate the performance of real chillers. This paper provides an explicit equation for the optimum temperature of vapor generation, in terms of only the external temperatures of the chiller. The additional data required are the four performance parameters of the chiller and essentially a modified stagnation temperature from the detailed model of the thermal collector operation. This paper presents and discusses the results for small capacity machines for air conditioning of homes and small buildings. The discussion highlights the influence of the relevant parameters. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1806 / 1814

页数：9

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