华侨大学学报（自然科学版）2018，Vol.39Issue(2)：227-232,6.DOI:10.11830/ISSN.1000-5013.201707033
喷射式热泵系统的能量分析及(火用)分析
Energy and Exergy Analyses of Ejector Heat Pump Cycle
摘要
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.关键词
喷射器/热泵/能量分析/(火用)分析/系统工况/模拟计算Key words
ejector/heat pump/energy analysis/exergy analysis/system conditions/simulation分类
能源科技引用本文复制引用
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):227-232,6.基金项目
国际科技合作基金资助项目(2013DFA61580) （2013DFA61580）
山西省科技攻关基金资助项目(20140313006-6) （20140313006-6）
山西省回国留学人员科研基金资助项目(2016-032) （2016-032）
