流体机械

2018, v.46;No.549(03) 62-67

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夏热冬暖地区太阳能-空气源热泵复合热水系统试验研究
Experimental Study on Water Heating System of Solar Air-source Heat Pump in Hot Summer and Warm Winter Zone

许卫龙;郭春梅;王宇;孙颖楷;李志强;
XU Wei-long;GUO Chun-mei;WANG Yu;SUN Ying-kai;LI Zhi-qiang;Tianjin Chengjian University;Guangdong Vanward New Electric Co.,Ltd.;

摘要(Abstract):

构建了一种并联式太阳能-空气源热泵复合热水系统,利用此系统对夏热冬暖的广州地区冬季热辐照强度高、中、低3种工况进行试验测试。针对低层建筑用户热水需求,模拟用户热水使用情况进行分时段放热水试验研究。试验结果表明:在用户热水实际需求的条件下,空气源热泵需提供的热量要大于太阳能系统所提供的热量,尤其在太阳能辐照度较低或者无太阳辐照时。3种工况下的太阳能日保证率分别为28.22%、11.2%、0,热泵机组日平均COP分别为5.17,5.48,5.1,复合系统平均COP分别为6.47,5.9,5.03。系统能在不同工况下充分耦合各种工作模式,高效、稳定地在冬季满足热水需求,而在太阳能热辐射情况下,复合系统COP较热泵COP显著提高。
Acombined solar air-source heat pump water heating system was developed. Experiments using this system in the hot summer and warm winter zone of Guangzhou during the winter,under three conditions of high irradiation、medium and low irradiation. According to hot water demand for low-rise building users to make experimental study on day-parting hot water supplyby simulating the user hot water usage. Experimental results showed that the air source heat pumps provide more heat than solar energy systems,especially when solar irradiance is low or without solarradiation when actual use of hot water. Under three different conditions,the daily solar energy guarantee rates is 28.22%,11.2% and 0,the daily average COP of the heat pump unit is 5.17,5.48 and 5.1,and the average COP of the composite system is 6.47,5.9 and 5.03.The system can fully coupling various working modes under different working conditions,and meet the demand of hot water efficiently and stably in winter,and the COP of composite system is significantly higher than that of heat pump COP while solar radiation be used.

关键词(KeyWords): 太阳能;空气源热泵;夏热冬暖地区;能效比;太阳能日保证率
solar energy;air-source heat pump;hot summer and winter warm zone;energy efficiency ratio;solar daily guarantee rate

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作者(Author): 许卫龙;郭春梅;王宇;孙颖楷;李志强;
XU Wei-long;GUO Chun-mei;WANG Yu;SUN Ying-kai;LI Zhi-qiang;Tianjin Chengjian University;Guangdong Vanward New Electric Co.,Ltd.;

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