摘要
以300MW机组为例，分析计算了火电厂抽汽供热与循环水-水源热泵供热2种方式的特点和能耗。结果表明，当水源热泵系统的能效比（COP）大于5．03时，循环水-水源热泵供热方式的节能效果较好。目前水源热泵在实际运行时COP为4．5～5．5，其供热能耗与抽汽供热相当。
Taking a 300 MW unit as the example, the characteristics and energy consumpnon of two heating approaches, extraction steam heating and circulating water-water source heat pump （CW-WSHP） heating,were investigated. The results show that,when the coefficient of performance （COP） of the water source heat pump system is larger than 5.03,the CW-WSHP heating method has better energy saving effect than the extraction steam heating method. Due to limita- tion of the technology,the actual COP of the current water source heat pump is about 4.5 to 5.5. Therefore,the energy consumption of the CW-WSHP heating method is basically equivalent to that of the extraction steam heating method.
出处
《热力发电》
CAS
北大核心
2014年第3期14-20,共7页
Thermal Power Generation
基金
上海市教委重点学科(第五期)(J51304)~~
关键词
300
MW机组
抽汽供热
循环水
水源热泵
能耗
300 MW unit
extraction steam heating
circulating water
water source heat pump
energy consumption
