上海交通大学学报(自然版) ›› 2011, Vol. 45 ›› Issue (09): 1389-1394.

• 能源与动力工程 • 上一篇    下一篇

CaCl2-BaCl2-NH3二级吸附式制冷系统及其制冷性能与仿真

王健,胡远扬,王丽伟,王如竹   

  1. (上海交通大学 制冷与低温工程研究所, 上海 200240)
  • 收稿日期:2010-11-08 出版日期:2011-09-30 发布日期:2011-09-30
  • 基金资助:

    国家自然科学基金项目(50806043),全国优秀博士学位论文专项基金资助(200947)

Experiments on Adsorption Performance and Simulation on Freezing System for CaCl2-BaCl2-NH3 Two-Stage Adsorption

 WANG  Jian, HU  Yuan-Yang, WANG  Li-Wei, WANG  Ru-Zhu   

  1. (Institute of Refrigeration and Cryogenics Engineering, Shanghai Jiaotong University,Shanghai 200240, China)
  • Received:2010-11-08 Online:2011-09-30 Published:2011-09-30

摘要: 在低于100 °C热源、高于30 °C冷凝温度的条件下,为了获得-15 °C的冷冻工况,采用二级解吸过程设计了氯化钙/氯化钡吸附氨的吸附制冷系统,并对氯化钙/氯化钡工质对的吸附性能参数进行测试,由其性能数据拟合而得到吸附与解吸曲线、耦合吸附与解吸方程和传热方程,并建立系统模型进行仿真.结果表明,该系统可以利用85 °C的低温热源,在30 °C的冷凝温度条件下获得-15 °C的制冷温度,并达到2.62 kW的制冷功率.

关键词: 氯化钙, 氯化钡, 二级吸附式制冷, 低温热源, 仿真

Abstract: In order to achieve freezing condition under -15 °C while the heating source temperature is lower than 100 °C and the condensing temperature is higher than 30 °C, a CaCl2-BaCl2-NH3 adsorption refrigeration system was designed with two-stage desorption cycle. A series of experiments were performed on two-stage adsorption test unit in order to get the adsorption and desorption data of the composite absorbents, which are the mixture of salt chloride and expanded graphite. By fitting the data into adsorption and desorption curve, we set a mathematic model of the system by combining the adsorption and desorption equations and heat transfer equations of the system. The performance of the system was simulated and the results show that the system is able to use 85 °C heating source for the output of -15 °C freezing temperature, when the condensing temperature is 30 °C. The cooling capacity of the system simulated is 2.62 kW.

Key words:  calcium chloride, barium chloride, two-stage adsorption refrigeration, low temperature heat source, simulation

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