Theoretical and experimental evaluation of an indirect-fired GAX cycle cooling system

被引：36

作者：

Gomez, V. H. ^{[1
]}

Vidal, A. ^{[1
]}

Best, R. ^{[2
]}

Garcia-Valladares, O. ^{[2
]}

Velazquez, N. ^{[3
]}

机构：

[1] Univ Nacl Autonoma Mexico, Posgrad Ingn Energia, Temixco Morelos 62580, Mexico

[2] Univ Nacl Autonoma Mexico, Ctr Invest Energia, Temixco Morelos 62580, Mexico

[3] Univ Autonoma Baja California, Inst Ingn, Mexicali 21280, Baja California, Mexico

来源：

APPLIED THERMAL ENGINEERING | 2008年 / 28卷 / 8-9期

关键词：

ammonia-water; absorption; waste heat; air conditioning; microturbine;

D O I：

10.1016/j.applthermaleng.2007.06.027

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A theoretical and experimental evaluation of an indirect-fired GAX-Prototype Cooling System (GAX-PCS), using ammonia-water as the working fluid, is presented. The GAX-PCS was designed for a cooling capacity of 10.6 kW (3 tons). A simulation model was developed, calibrated and validated with experimental values in order to predict the performance of the system outside the design parameters. Experimental results were obtained using thermal oil, at temperatures from 180 to 195 degrees C, as heating source. An internal heat recovery in the system of similar to 55% with respect to the total heat supplied in the generator was obtained. Also the performance of the GAX absorption system, integrated to a micro gas turbine (MGT) as a cogeneration system was simulated. Overall efficiencies for the cogeneration system from 29% to 49% were obtained for cooling loads from 5 kW to 20 kW, respectively. With the theoretical and experimental study of the proposed cycle, it is concluded that the GAX-PCS presents potential to compete technically in the Mexican air conditioning market. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：975 / 987

页数：13

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