四温位吸收式制冷机生态学优化准则  

Ecological Criteria Optimization for a Four-temperature-level Absorption Refrigerator

作　　者：陈安峰[1] 黄跃武[1] 蔡欢欢[1] 

机构地区：[1]东华大学环境科学与工程学院

出　　处：《建筑热能通风空调》2008年第1期31-33,40,共4页Building Energy & Environment

摘　　要：建立不可逆四温位吸收式制冷循环模型,考虑工质与各换热器的热阻损失以及工质内部不可逆损失的影响。应用基于(火用)分析的生态学优化准则对循环(火用)输出率和循环(火用)损率进行协调优化。利用数值方法讨论内不可逆性、外部热源温度对制冷系统最优性能的影响,所得结论可以为实际吸收式制冷机的优化设计和性能改进提供依据。An irreversible four-temperature-level absorption refrigerator model is presented, with losses due to thermal resistance and internal irreversibilities of the working material are taking into account. On the basics of this model an exergy-based ecological optimization criterion is used to achieve the best compromise between the exergy-output rate and exergy-loss rate. Numerical examples show the effect of the internal irreversibility, temperature level of the heat sources on the optimal performance of the refrigerator. The conclusions obtained can serve as a theoretical guide for the optimized design and the selection of optimum operating condition of a real absorption refrigerator.

关 键 词：吸收式制冷机 生态学优化 [火用] 性能系数 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]