[1]常曌,李风雷.喷射式热泵系统的能量分析及(火用)分析[J].华侨大学学报(自然科学版),2018,39(2):227-232.[doi:10.11830/ISSN.1000-5013.201707033]
　CHANG Zhao,LI Fenglei.Energy and Exergy Analyses of Ejector Heat Pump Cycle[J].Journal of Huaqiao University(Natural Science),2018,39(2):227-232.[doi:10.11830/ISSN.1000-5013.201707033]
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喷射式热泵系统的能量分析及(火用)分析()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第39卷
期数:
2018年第2期
页码:
227-232
栏目:
出版日期:
2018-03-20

文章信息/Info

Title:
Energy and Exergy Analyses of Ejector Heat Pump Cycle
文章编号:
1000-5013(2018)02-0227-06
作者:
常曌;  李风雷
太原理工大学 环境科学与工程学院, 山西 太原 030024
Author(s):
CHANG Zhao;  LI Fenglei
College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
关键词:
喷射器;  热泵;  能量分析;  （火用）分析;  系统工况;  模拟计算
Keywords:
ejector;  heat pump;  energy analysis;  exergy analysis;  system conditions;  simulation
分类号:
TK519
DOI:
10.11830/ISSN.1000-5013.201707033
文献标志码:
A
摘要:
建立一维喷射热泵(EHPC)系统热力学模型,以R245fa为制冷剂,采用能量分析和(火用)分析相结合的方式,分析设计工况的变化对喷射器及系统性能的影响.计算结果表明:当发生温度升高时,喷射系数及系统热效率(COPh)增大,效率降低;当蒸发温度升高时,喷射系数和COPh,效率均增大;当冷凝温度升高时,喷射系数和COPh减小,效率升高;该系统适宜的工作范围为蒸发温度-15 ℃以上、冷凝温度45 ℃以下.
Abstract:
A 1-D ejector heat pump cycle(EHPC)model was developed. Using R245fa as the working fluid, both energy and exergy analyses were carried out to investigate the variations of the ejector and system performance in terms of the design conditions. It can be derived that when the generating temperature increases, both of the entrainment ratio of the ejector and the system coefficient of performance(COPh)of EHPC increase, while the exergy efficiency of the system decreases; when the evaporating temperature increases, the entrainment ratio of the ejector, COPh, and exergy efficiency of EHPC all increase; when the condensing temperature increases, both of the entrainment ratio of the ejector and COPh of EHPC decrease, while the system exergy efficiency increases. In addition, the evaporating temperature above -15 ℃ and the condensing temperature below 45 ℃ are suitable for the system.

参考文献/References:

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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2017-07-14
通信作者: 李风雷(1967-),男,副教授,博士,主要从事空调制冷新技术、热能利用与节能技术的研究.E-mail:fengleili@126.com.
基金项目: 国际科技合作基金资助项目(2013DFA61580); 山西省科技攻关基金资助项目(20140313006-6); 山西省回国留学人员科研基金资助项目(2016-032)
更新日期/Last Update: 2018-03-20