东南大学学报（自然科学版）2017，Vol.47Issue(1)：85-90,6.DOI:10.3969/j.issn.1001-0505.2017.01.016
溶液加冷剂回热双吸收式热变换器循环性能分析
Performance analysis of double absorption heat transformers with solution and coolant heat regeneration cycle
摘要
Abstract
Based on the cycle of double absorption heat transformer with solution heat regeneration, a modified cycle of double absorption heat transformer with both solution and coolant heat regenera-tion was proposed by adding a heat exchanger between solution and coolant at the outlet of dilute so-lution of the absorber-evaporator.Both coefficients of performance (COP)and exergy efficiencies of three kinds of cycles in double absorption heat transformers without heat regeneration,with solu-tion heat regeneration and with both solution and coolant heat regeneration at the outlet of dilute solu-tion of the absorber-evaporator were calculated and compared.The results show that the new cycle of double absorption heat transformer with solution and coolant heat regeneration has a wider operating range of absorption-evaporation temperature and higher COP and exergy efficiency in the discussed scope.When the temperatures of absorption,generation,condensation and absorption-evaporation are 120 to 150,70,25 and 80 to 1 15 ℃,respectively,the COP and exergy efficiencies of the new cycle increase by about 2.5% to 3.5%compared with those of the one with solution heat regenera-tion only.The variation trends of COP and exergy efficiency of the three cycles versus the tempera-tures of absorption-evaporation,condensation,generation and absorption are analyzed.关键词
双吸收式热变换器/热交换器/性能系数/效率/回热Key words
double absorption heat transformer/heat exchanger/coefficient of performance/exergy efficiency/heat regeneration分类
通用工业技术引用本文复制引用
纪光菊,陈亚平,吴嘉峰,吉鸽..溶液加冷剂回热双吸收式热变换器循环性能分析[J].东南大学学报（自然科学版）,2017,47(1):85-90,6.基金项目
国家自然科学基金资助项目（51276035）． （）
