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作 者:杨波[1] 姚仙珍[1] 王建萍[1] 李志肖[1] 王永维[1] 文乐元
机构地区:[1]浙江大学生物系统工程与食品科学学院,杭州310029 [2]湖南省畜牧水产技术推广站,长沙410005
出 处:《农机化研究》2008年第1期127-131,共5页Journal of Agricultural Mechanization Research
基 金:浙江省教育厅科研资助项目(20050912)
摘 要:为了减少温室加温能耗,基于植物生理设计了温室地下蓄热系统,测试了系统冬季白昼蓄热与夜间加温时温室内空气温度、湿度和地坪温度和室外气温、土壤温度、相邻未蓄热温室气温和地温。结果表明:在冬季白昼为晴朗、多云时,系统蓄热可分别使地坪温度平均高于未蓄热温室地温4.8℃,4.4℃,具有良好的蓄热效果;阴天时蓄热时间应适当缩短,但由于长期蓄热,其地温仍高于相邻温室2.6℃。在白昼为晴朗、多云、阴天的情况下,夜间系统加温使温室内气温分别高于相邻未蓄热温室3.1℃,2.0℃,1.5℃,与外界分别保持3.95℃,3.21℃,2.35℃的平均温差,在加温期间具有良好的加温效果,至少可以满足温室加温能耗的35.7%。To reduce energy consumption for greenhouse heating, an underground heat storage system in greenhouse was designed based on the plant physiology. Some parameters, including air temperature, humidity, flat temperature inside greenhouse and air temperature, soil temperature in adjacent greenhouse without heat saving and outside greenhouse, were measured during heat saving in the day and heating at night in winter. It was indicated that the flat temperature in the greenhouse after heat saving was 4.8℃ and 4.4℃ higher than that of the greenhouse without heat saving in the clear day and cloudy in winter respectively. In the over cloudy sky,the time of heat saving should be shorten, but the flat temperature was still 2.6℃ higher than that of the adjacent greenhouse owing to the longtime heat saving. In addition, the temperature inside greenhouse with heat saving at night was 3.1℃, 2.0℃, 1.5℃ higher than that of the adjacent greenhouse without heat saving respectively and 2.35℃ the average temperature difference between inside and outside greenhouse were 3.95℃, 3.21℃, respectively during heating at night in the clear day, cloudy sky and over cloudy sky in winter, which could at least satisfy 35.7% of the energy consumption for greenhouse heating. So the effects heat saving and heating in the system are significant.
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