实际回热式布雷顿制冷机的性能优化  

PERFORMANCE OPTIMIZATION FOR A REAL REGENERATED BRAYTON REFRIGERATOR

作　　者：屠友明[1] 陈林根[1] 孙丰瑞[1] 

机构地区：[1]海军工程大学动力工程系,武汉430033

出　　处：《工程热物理学报》2006年第z1期21-24,共4页Journal of Engineering Thermophysics

基　　金：教育部新世纪优秀人才支持计划项目(No.NCET-04-1006);全国优秀博士论文作者专项基金(No.200136)

摘　　要：用有限时间热力学方法分析实际回热式布雷顿制冷机的性能特性,以制冷率和制冷系数为优化目标,优化了高低、温侧换热器和回热器的热导率分配以及工质和热源间的热容率匹配,并采用数值计算分析了各参数值对最优性能的影响特点.所得结果对工程制冷系统设计有一定的指导意义。The performance analysis of a real regenerated Brayton refrigerator is carried out by using finite-time thermodynamic method in this paper.To maximize the cooling load and the coefficient of performance(COP)of the refrigerator,the distribution among heat conductances of the hot-and cold-side exchangers and the regenerator for the fixed total heat exchanger inventory and heat capacity rate matching between the working fluid and heat reservoirs are optimized,respectively.The influences of the parameters of the cycle on the characteristic of the refrigerator are shown by detailed numerical examples.The results obtained may provide guidance for the design of practice air refrigeration plants.

关 键 词：实际回热式布雷顿制冷机 制冷率 制冷系数 优化 

分 类 号：TB61[一般工业技术—制冷工程]