操作参数对双蒸发压缩/喷射制冷系统性能的影响

doi:10.11949/j.issn.0438-1157.20160618

化工学报 ›› 2017, Vol. 68 ›› Issue (3): 1146-1154.DOI: 10.11949/j.issn.0438-1157.20160618

操作参数对双蒸发压缩/喷射制冷系统性能的影响

耿利红¹, 刘华东^1,2, 魏新利^1,2, 王珍珍¹, 邵龙¹

1 郑州大学化工与能源学院, 河南郑州 450001;
2 热能系统节能技术与装备教育部工程技术研究中心, 河南郑州 450001

收稿日期:2016-05-09 修回日期:2016-12-16 出版日期:2017-03-05 发布日期:2017-03-05
通讯作者: 魏新利,xlwei@zzu.edu.cn
基金资助:
河南省高等学校重点科研项目计划（16A470002）。

Influences of operating parameters on performance of bi-evaporator compression/ejection refrigeration system

GENG Lihong¹, LIU Huadong^1,2, WEI Xinli^1,2, WANG Zhenzhen¹, SHAO Long¹

1 School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, Henan, China;
2 Research Center on the Technology and Equipments for Energy Saving in Thermal Energy System, Ministry of Education, Zhengzhou 450001, Henan, China

Received:2016-05-09 Revised:2016-12-16 Online:2017-03-05 Published:2017-03-05
Contact: 10.11949/j.issn.0438-1157.20160618
Supported by:
supported by the Key Scientific Research Project of Colleges and Universities in Henan Province (16A470002).

摘要/Abstract

摘要：

实验研究了操作参数（冷凝器进水温度、高温蒸发器进水温度和低温蒸发器进水温度）对双蒸发压缩/喷射制冷系统及两相喷射器性能的影响。结果显示，喷射器引射系数随冷凝器进水温度和高温蒸发器进水温度的升高而减小，随低温蒸发器进水温度的升高而增大；喷射器压升比随冷凝器进水温度和高温蒸发器进水温度的升高而增大，随低温蒸发器进水温度的升高而减小。冷凝器进水温度和高温蒸发器进水温度对制冷系统性能的影响较大，而低温蒸发器进水温度对制冷系统性能的影响较小。其中，冷凝器进水温度每降低5℃，制冷系统COP增加0.44；高温蒸发器进水温度每升高2℃，制冷系统COP增加0.16。结果可供双蒸发压缩/喷射制冷系统的设计和运行参考。

关键词: 操作参数, 两相流, 喷射器, 压缩/喷射制冷, 性能

Abstract:

The influences of operating parameters (condenser inlet water temperature, high-temperature evaporator inlet water temperature and low-temperature evaporator inlet water temperature) on the performance of bi-evaporator compression/ejection refrigeration cycle (BCERC) and two-phase ejector are experimentally investigated. Results show that the ejector entrainment ratio decreases with the rising of condenser inlet water temperature and high-temperature evaporator inlet water temperature, but rises with the increasing of low-temperature evaporator inlet water temperature. The pressure lift ratio of ejector increases with the rising of condenser inlet water temperature and high-temperature evaporator inlet water temperature, but decreases with the rising of low-temperature evaporator inlet water temperature. The condenser inlet water temperature and the high-temperature evaporator inlet water temperature have significant influences on the performance of the BCERC system. However, the low-temperature evaporator inlet water temperature has little effects on the performance of the BCERC system. As the condenser inlet water temperature decreases 5℃, the COP increases 0.44. As the high-temperature evaporator inlet water temperature increases 2℃, the increase of system COP is 0.16. The results can be references for the design and operation of the BCERC system.

Key words: operating parameters, two-phase flow, ejector, compression/ejection refrigeration, performance

中图分类号:

TB66

耿利红, 刘华东, 魏新利, 王珍珍, 邵龙. 操作参数对双蒸发压缩/喷射制冷系统性能的影响[J]. 化工学报, 2017, 68(3): 1146-1154.

GENG Lihong, LIU Huadong, WEI Xinli, WANG Zhenzhen, SHAO Long. Influences of operating parameters on performance of bi-evaporator compression/ejection refrigeration system[J]. CIESC Journal, 2017, 68(3): 1146-1154.

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操作参数对双蒸发压缩/喷射制冷系统性能的影响

Influences of operating parameters on performance of bi-evaporator compression/ejection refrigeration system

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