Design-theoretical study of cascade CO2 sub-critical mechanical compression/butane ejector cooling cycle

被引：21
|
作者：
Petrenko, V. O. [1 ,2 ]
Huang, B. J. [1 ]
Ierin, V. O. [2 ]
机构：
[1] Natl Taiwan Univ, Dept Mech Engn, New Energy Ctr, Taipei 106, Taiwan
[2] Ejector Refrigerat Technol Ctr, Odessa State Acad Refrigerat, UA-65082 Odessa, Ukraine
来源：
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2011年 / 34卷 / 07期
关键词：
Carbon dioxide; Butane; Cascade system; Vapor; Compression; Ejector; REFRIGERATION SYSTEMS;
D O I：
10.1016/j.ijrefrig.2010.11.012
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this paper an innovative micro-trigeneration system composed of a cogeneration system and a cascade refrigeration cycle is proposed. The cogeneration system is a combined heat and power system for electricity generation and heat production. The cascade refrigeration cycle is the combination of a CO2 mechanical compression refrigerating machine (MCRM), powered by generated electricity, and an ejector cooling machine (ECM), driven by waste heat and using refrigerant R600. Effect of the cycle operating conditions on ejector and ejector cycle performances is studied. Optimal geometry of the ejector and performance characteristics of ECM are determined at wide range of the operating conditions. The paper also describes a theoretical analysis of the CO2 sub-critical cycle and shows the effect of the MCRM evaporating temperature on the cascade system performance. The obtained data provide necessary information to design a small-scale cascade system with cooling capacity of 10 kW for application in micro-trigeneration systems. (C) 2010 Elsevier Ltd and IIR. All rights reserved.
引用
收藏
页码：1649 / 1656
页数：8
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