地源热泵系统变水温控制节电效果分析  

Energy saving analysis of a ground source heat pump system

作　　者：黄新江 刘成刚[1] HUANG Xinjiang;LIU Chenggang(Suzhou University of Science and Technology,Suzhou 215009 ,China)

机构地区：[1]苏州科技大学

出　　处：《电气应用》2019年第5期16-21,共6页Electrotechnical Application

摘　　要：以苏州市某办公楼的地源热泵系统为研究对象,针对其长期在部分负荷下的运行特点,提出了相应的变水温控制策略。测试并分析了其变水温调节后系统能耗情况,并运用TRNSYS模拟软件对比分析了不同运行策略下变水温调节的节电效果。结果表明整个测试期间通过变水温调节累计节约电能6480kW·h,节能率达19.6%。机组连续运行10年可节能281412kW·h,节能率达20.2%,若该地源热泵系统基于变水温控制采用间歇运行策略,将进一步减少大约9%的系统能耗。A ground source heat pump of an office building in Suzhou is the research object. According to the characteristics of the operation under partial load, the control strategy of variable water temperature is put forward. The energy consumption of the system is tested and analyzed, and the energy saving effect of variable water temperature adjustment under different operation strategies is analyzed by using TRNSYS simulation software. The results show that the accumulative energy saving of 6 480 kW h is achieved during the whole test and energy saving rate reached 19.6%. The saving of about 281412kW h or 20.2% could be achieved if the unit runs continuously for 10 years. About 9% of energy consumption could be further reduced if the ground source heat pump is operated with intermittent operation strategy based on variable water temperature control.

关 键 词：地源热泵 变水温 节电 性能系数 模拟 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]