化学工程2026，Vol.54Issue(4)：89-94,6.DOI:10.3969/j.issn.1005-9954.2026.04.015
基于R245fa的高温热泵蒸汽系统实验研究
Experimental research on steam system of high temperature heat pump based on R245fa
摘要
Abstract
In order to enhance the efficiency of industrial waste heat recovery,the operating characteristics of the high-temperature heat pump steam system based on R245fa were investigated.Experiments tested low-grade heat source temperatures(45-65 ℃)and steam temperatures(118-122 ℃)to assess system performance.Heating capacity,energy efficiency ratio Cop,steam production and energy consumption were measured,with a mathematical model comparing lifecycle energy use and emissions to conventional systems.The results show that raising the low-grade heat source temperature boosts Cop by 21.2％,increases steam output by 15.05％,and cuts energy use by 8.29％.Conversely,each 1 ℃ rise in steam temperature reduces Cop by 1.08％ and raises energy consumption by 0.75％.Compared to conventional system,the system reduces energy use by 70％-75％ and carbon emissions by 18.1％-73.7％for 40 kg steam production,while eliminating NOx and SO2 emissions entirely.Optimal parameters are 55-60 ℃ heat source and 120 ℃ steam temperature.This configuration demonstrates its efficiency and environmental benefits for industrial waste heat recovery,offering a theoretical foundation for practical implementation.关键词
高温热泵/蒸汽发生器/全生命周期能耗/碳排放Key words
high temperature heat pump/steam generator/life cycle energy consumption/carbon emission分类
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周勇昌,刘宏伟,刘欢,范立群,曹洪涛,罗景辉,张昌建..基于R245fa的高温热泵蒸汽系统实验研究[J].化学工程,2026,54(4):89-94,6.基金项目
中央引导地方科技发展资金项目(245Z4506G) （245Z4506G）
河北工程大学横向课题(D2024924) （D2024924）
