摘要
本试验通过对比测量有无地源热泵系统的两栋日光温室内的温度、空气湿度等环境因素,分析评价了地源热泵系统在日光温室冬季应用的效果。结果表明:在室外最低气温-8.8℃的条件下,热泵温室内的平均气温可达到21.5℃,比对照温室平均气温高13.7℃,比室外平均气温高23.9℃。热泵温室内的相对湿度在48%～74%范围内变化,其平均相对湿度较对照温室低20%,比室外条件低31%。地源热泵系统运行时,其制热系数COP为4.16。由此可见,应用地源热泵系统进行加温,其日光温室内的温度和湿度不仅可以满足作物生长发育的需要,而且系统供热性能较高,节能效果较好。
To evaluate the heating effects of Ground Source Heat Pump （GSHP） in sun-light greenhouse, air temperature, soil temperature, relative humidity have been measured in GSHP and non-GSHP sun-light greenhouse. The results showed that the average air temperature of GSHP greenhouse was maintained 21.5 ℃, 13.7 ℃ higher than the non-GSHP greenhouse during winter, and 23.9 ℃ above the outside air temperature. The relative humidity （RH） inside the GSHP greenhouse was in the range of 48%-74%. The RH was 20% below the non-GSHP greenhouse, and 31% above the outside. The COP was 4.16 when the GSHP run. It showed that when the GSHP run in sun-light greenhouse, the temperature and humidity not only met the needs of crop growth, but also had the system a higher heating performance, and a better energy saving effect.
出处
《上海交通大学学报（农业科学版）》
2008年第5期436-439,共4页
Journal of Shanghai Jiaotong University(Agricultural Science)
基金
国家科技支撑计划项目(2006BAD28B07-4)
