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202103014.pdf
文章编号： 1672-6987（2021）03-0085-09； DOI： 10.16351/j.1672-6987.2021.03.014
白杨， 李邹路， 陈伟*， 张斌， 马连湘(青岛科技大学 机电工程学院，山东 青岛 266061)
摘要： 提出了一种以［bmim］Zn2Cl5/NH3和NaSCN/NH3为工质的新型两级复叠吸收式制冷（TCAR）。基于系统部件的质量守恒，能量守恒和方程，对TCAR系统的热性能进行了数值研究。计算并分析了热源温度和冷媒水入口温度关键性能参数的影响。结果显示：TCAR系统的热性能优于两级吸收式制冷（TAR)系统，性能系数（COP）略低于热驱动压缩吸收式制冷（HACR)系统，但TCAR系统的热源温度低于HACR系统，且TCAR系统的结构比HACR系统简单得多。计算并比较了每个部件的损，发现发生器、冷凝器以及吸收冷凝器的损最大。
关键词： 两级复叠吸收式制冷（TCAR）； NaSCN/NH3； ［bmim］Zn2Cl5/NH3； 性能系数（COP）； 分析
中图分类号： TK 101文献标志码： A
引用格式： 白杨， 李邹路， 陈伟， 等. 采用［bmim］Zn2Cl5/NH3和NaSCN/NH3为工质的两级复叠吸收式制冷稳态特性［J］. 青岛科技大学学报(自然科学版), 2021, 42(3): 85-93.
BAI Yang, LI Zoulu, CHEN Wei, et al. Energy and exergy analysis of a novel two-stage cascade absorption refrigeration using ［bmim］Zn2Cl5/NH3 and NaSCN/NH3 as working fluids at low evaporating temperature［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2021， 42（3）： 85-93.
Energy and Exergy Analysis of a Novel Two-stage Cascade Absorption
Refrigeration Using ［bmim］Zn2Cl5/NH3 and NaSCN/NH3 as
Working Fluids at Low Evaporating Temperature
BAI Yang, LI Zoulu, CHEN Wei, ZHANG Bin, MA Lianxiang
(College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China)
Abstract: A novel two-stage cascade absorption refrigeration (TCAR) using ［bmim］Zn2Cl5/NH3 and NaSCN/NH3 as working fluids was proposed, which can be driven only by heat sources, such as waste heat from industry buildings and solar energy. The thermal performance of the proposed TCAR system was numerically investigated by considering the mass conservation, energy conservation, and exergy equation of each component. The effects of the inlet temperatures of heat source, cooling water, and chilled water on seven important operating temperatures were calculated and analyzed. The variations of six performance parameters were simulated and discussed. The thermal performance of the TCAR system is better than that of the two-stage absorption refrigeration (TAR) system. The COP of TCAR is a little lower than that of the heat-driven compression-absorption refrigeration (HACR) system. However, the heat source temperature of TCAR system is lower than that of HACR system, and the structure of TCAR system is considerably simpler than that of HACR system. The exergy losses of each component were calculated and compared. The three largest exergy losses occurred in generator, condenser, and the cascade component of absorber and generator.
Key words: two-stage cascade absorption refrigeration; NaSCN/NH3; ［bmim］Zn2Cl5/NH3; coefficient of performance (COP); exergy analysis
收稿日期： 2020-06-05
基金项目： 国家自然科学基金项目(51506104).
作者简介： 白杨(1982—), 女, 博士研究生.*通信联系人.
