Performance of new absorption refrigeration system driven bydouble low-grade energy

doi:10.11949/j.issn.0438-1157.20150608

CIESC Journal ›› 2015, Vol. 66 ›› Issue (12): 5096-5102.DOI: 10.11949/j.issn.0438-1157.20150608

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Performance of new absorption refrigeration system driven bydouble low-grade energy

HE Lijuan¹, LIANG Jingjing¹, ZHU Chaoqun¹, WANG Zheng²

1 College of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China;
2 University College London, London, WC1E 7JE, United Kingdom

Received:2015-05-14 Revised:2015-08-04 Online:2015-12-05 Published:2015-12-05
Supported by:
supported by the National Natural Science Foundation of China (51106068), the Natural Science Foundation of Inner Mongolia (2015MS0547) and CEEUSRO (PY-201208).

双温低品位热驱动新型吸收制冷循环性能

何丽娟¹, 梁晶晶¹, 朱超群¹, 王征²

1 内蒙古科技大学能源与环境学院, 内蒙古包头 014010;
2 伦敦大学学院, 英国伦敦 WC1E 7JE

通讯作者: 何丽娟
基金资助:
国家自然科学基金项目(51106068);内蒙古自然科学基金项目(2015MS0547);产学研基金项目(PY-201208)。

Abstract

Abstract:

Since the efficiency of traditional absorption refrigeration system driven by low-grade energy is low, a new CO₂-[emim][Tf₂N] absorption refrigeration cycle driven by double low-grade energy is introduced based on cascaded utilization energy. Experimental equipment is built to evaluate the performance of the new refrigeration system. Experimental results at constant flow rates indicate that COP and cooling capacity of the new system increase with the increase of heat ratio between the two generators, decrease with the increase of cooling water and pressure in high pressure generator. The new system gives a higher value of refrigeration capacity and a higher value of COP. Compared with the traditional absorption refrigeration system, COP increases by 50%.

Key words: double low grade energy, absorption refrigeration cycle, carbon dioxide, ionic liquid, thermodynamic property, experimental validation

摘要：

针对传统低品位热驱动CO₂-离子液体制冷系统的制冷效率低等缺陷,从吸收制冷循环基本原理和能量梯级利用原理出发,提出一种双低品位热驱动CO₂-[emim][Tf₂N]吸收制冷系统。为了测试新系统性能,自行搭建双低品位热驱动CO₂-[emim][Tf₂N]吸收制冷实验装置。在定流量的实验条件下进行新系统性能的实验研究。实验结果表明,双低品位热驱动CO₂-[emim][Tf₂N]吸收制冷系统的制冷系数和制冷量随高低温热量比的增大而增大,随高压箱体压力和冷却水入口温度的升高而降低,新系统可制取高品位冷量,还具有较高的效率,制冷效率提高将近50%左右。

关键词: 双低品位热源, 吸收制冷系统, 二氧化碳, 离子液体, 热力学性质, 实验验证

CLC Number:

TB61⁺1

HE Lijuan, LIANG Jingjing, ZHU Chaoqun, WANG Zheng. Performance of new absorption refrigeration system driven bydouble low-grade energy[J]. CIESC Journal, 2015, 66(12): 5096-5102.

何丽娟, 梁晶晶, 朱超群, 王征. 双温低品位热驱动新型吸收制冷循环性能[J]. 化工学报, 2015, 66(12): 5096-5102.

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Performance of new absorption refrigeration system driven bydouble low-grade energy

双温低品位热驱动新型吸收制冷循环性能

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