北方大棚土壤源太陽能熱泵蓄熱系統(tǒng)的研究
發(fā)布時間:2018-03-13 20:01
本文選題:土壤源 切入點:太陽能 出處:《江蘇農業(yè)科學》2016年12期 論文類型:期刊論文
【摘要】:針對北方地區(qū)大棚,設計了一套土壤源太陽能熱泵供熱系統(tǒng),對系統(tǒng)土壤蓄熱進行試驗研究。結果表明:輻照條件直接影響蓄熱系統(tǒng)的供水溫度,太陽輻照越強,制熱量越大,系統(tǒng)的能效比也越大。土壤源熱泵未開啟的情況下,利用土壤蓄熱的試驗大棚與對比大棚(未加供熱系統(tǒng))相比,地下10 cm處地溫平均日提升4.6℃,最高提升6.5℃,大棚室內溫度平均日提升2.4℃。
[Abstract]:A ground-source solar heat pump heating system was designed for the greenhouse in the north of China. The experimental study on the soil heat storage of the system was carried out. The results showed that the radiation condition directly affected the water supply temperature of the storage system, and the stronger the solar radiation, the greater the heating capacity. The larger the energy efficiency ratio of the system is, the higher the energy efficiency ratio of the system is. When the ground source heat pump is not turned on, compared with the contrast greenhouse (without heating system), the ground temperature at 10 cm underground is increased by 4.6 鈩,
本文編號:1607900
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