Performance of MnCl2/CaCl2-NH3 resorption refrigeration system

doi:10.11949/j.issn.0438-1157.20161362

CIESC Journal ›› 2016, Vol. 67 ›› Issue (S2): 32-37.DOI: 10.11949/j.issn.0438-1157.20161362

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Performance of MnCl₂/CaCl₂-NH₃ resorption refrigeration system

ZHU Fangqi, JIANG Long, WANG Liwei, WANG Ruzhu

Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2016-09-28 Revised:2016-10-09 Online:2016-12-30 Published:2016-12-30
Supported by:
supported by the National Natural Science Foundation of China (51606118).

MnCl₂/CaCl₂-NH₃再吸附系统的制冷性能

朱芳啟, 江龙, 王丽伟, 王如竹

上海交通大学制冷与低温工程研究所, 上海 200240

通讯作者: 王丽伟
基金资助:
国家自然科学基金项目（51606118）。

Abstract

Abstract:

The solid composite sorbents based on the matrix of expanded natural graphite treated with sulfuric acid are developed, and a MnCl₂/CaCl₂-NH₃ resorption refrigeration system driven by low-grade thermal energy is established and experimentally investigated.Results indicate that 160℃ heat source temperature is the inflection temperature of coefficient of performance for refrigeration (COP), and a maximum cooling power of 2.98 kW is achieved.When the heating temperature is higher than 160℃, sensible heat load of the system increases which means keeping heating high temperature salt (HTS) sorption bed will reduce the overall refrigeration efficiency.For refrigeration temperature of 15℃, COP of the system ranges from 0.284 to 0.396 while specific cooling power (SCP) ranges from 100.3 to 338.8 W·kg^-1.SCP increases with the increment of heat source temperature.

Key words: resorption, composite adsorbent, refrigeration power, coefficient of performance for refrigeration

摘要：

利用膨胀硫化石墨为基质研制了固化混合吸附剂，并搭建了低品位热能驱动的MnCl₂/CaCl₂-NH₃为工质对的再吸附制冷系统。对该系统进行实验研究，结果表明：160℃热源温度为制冷性能系数（COP）的拐点温度，最大制冷功率为2.98 kW。当热源温度高于160℃时，系统显热负荷增大，继续加热高温床会降低制冷效率。当制冷温度为15℃时，系统COP为0.284~0.396；单位质量吸附剂的制冷功率（SCP）为100.3~338.8 W·kg^-1。SCP随热源温度的升高而逐渐升高。

关键词: 再吸附, 复合吸附剂, 制冷功率, 制冷性能系数

CLC Number:

TK172

ZHU Fangqi, JIANG Long, WANG Liwei, WANG Ruzhu. Performance of MnCl₂/CaCl₂-NH₃ resorption refrigeration system[J]. CIESC Journal, 2016, 67(S2): 32-37.

朱芳啟, 江龙, 王丽伟, 王如竹. MnCl₂/CaCl₂-NH₃再吸附系统的制冷性能[J]. 化工学报, 2016, 67(S2): 32-37.

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Performance of MnCl₂/CaCl₂-NH₃ resorption refrigeration system

MnCl₂/CaCl₂-NH₃再吸附系统的制冷性能

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