不同供水溫度下地源熱泵群孔換熱性能的試驗研究
發(fā)布時間:2018-06-27 17:39
本文選題:地源熱泵 + 群孔; 參考:《流體機械》2017年10期
【摘要】:對夏季地源熱泵單、雙U地埋管形式的群孔換熱性能進行試驗研究。試驗結(jié)果表明,地埋管與土壤間的換熱功率呈對數(shù)函數(shù)形式變化;在群孔循環(huán)總流量為8 m3/h,不同供水溫度條件下,供水溫度每增加1℃,單U換熱功率平均增加2.47 k W,雙U換熱功率平均增加3.06 k W;定量分析表明,連續(xù)換熱20 h后的換熱功率值可作為群孔實際換熱能力值,并給出換熱20 h時的不同工況下的換熱功率值,可為地源熱泵地埋管系統(tǒng)的工程設(shè)計提供參考依據(jù)。
[Abstract]:The heat transfer performance of single and double U ground heat pump in summer was studied. The results show that the heat transfer power between the buried pipes and the soil varies in the form of logarithmic function. The average heat transfer power of single U increases 2.47 kW and that of double U increases 3.06 kW.The quantitative analysis shows that the heat transfer power value after 20 hours of continuous heat transfer can be used as the actual heat transfer capacity of group holes. The heat transfer power values under different working conditions for 20 h heat transfer are given, which can provide a reference for the engineering design of ground source heat pump buried pipe system.
【作者單位】: 上海市地礦工程勘察院;
【分類號】:TH38
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本文編號:2074699
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