Local stability of a non-endoreversible Carnot refrigerator working at the maximum ecological function

被引：30
|
作者：
Wu Xiaohui
Chen Lingen [1 ]
Ge Yanlin
Sun Fengrui
机构：
[1] Naval Univ Engn, Inst Thermal Sci & Power Engn, Wuhan 430033, Peoples R China
来源：
APPLIED MATHEMATICAL MODELLING | 2015年 / 39卷 / 5-6期
关键词：
Local stability; Non-endoreversible Carnot refrigerator; Temperature ratio of heat reservoirs; Ecological optimization; ENTROPY GENERATION MINIMIZATION; OPTIMIZATION CRITERION; ENGINE WORKING; HEAT ENGINE; THERMODYNAMICS; EFFICIENCY;
D O I：
10.1016/j.apm.2014.09.031
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Local stability of a non-endoreversible Carnot refrigerator at the maximum ecological function is studied with Newton's heat transfer law between working fluid and heat reservoirs. The steady state of the refrigerator working at the maximum ecological function is steady. It is derived that a general expression of relaxation time described as stability of the system refers to heat capacity C, total heat exchange area F, temperature ratio of heat reservoirs tau, the degree of internal irreversibility phi, heat transfer coefficients alpha and beta. Distributing information of phase portraits of system is obtained. The results can provide some theoretical guidelines for the designs of practical refrigerator. (C) 2014 Elsevier Inc. All rights reserved.
引用
收藏
页码：1689 / 1700
页数：12
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