地层初始温度对地埋管换热量影响分析
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摘要
根据我国大陆城市由南向北年平均温度变化规律,进行了9个现场热响应试验,获得了武汉、淮南、西安、济南、天津、廊坊、北京、巴彦淖尔、阜新的地层初始平均温度和冬、夏季工况地埋管换热器的吸热和放热能力数据,识别出每延米换热量与地层初始温度的相关性方程,并认为不是所有的地区的建筑都适合应用地埋管地源热泵工程来制冷和供暖,只有当地层初始温度为13~20℃时,才适宜浅层地热能地埋管地源热泵的合理开发利用。
According to the regular of the annual mean temperature of China mainland from south to north,we implemented nine field thermal response tests,at Wuhan,Huainan,Xi'an,Ji'nan,Tianjin,Langfang,Beijing,Bayannur and Fuxin,and obtained the initial average the stratum temperature,the heat exchanger ability of heat absorb and release in winter and summer,and identified the correlation equation of heat transfer per meter and stratum initial temperature.It is suggested that not all parts of buildings can fit the refrigeration and the heating of ground source heat pump.Only when the stratum initial temperature is 13~20℃,the shallow geothermal energy of ground source heat pump can be rationally exploited and utilized.
According to the regular of the annual mean temperature of China mainland from south to north,we implemented nine field thermal response tests,at Wuhan,Huainan,Xi'an,Ji'nan,Tianjin,Langfang,Beijing,Bayannur and Fuxin,and obtained the initial average the stratum temperature,the heat exchanger ability of heat absorb and release in winter and summer,and identified the correlation equation of heat transfer per meter and stratum initial temperature.It is suggested that not all parts of buildings can fit the refrigeration and the heating of ground source heat pump.Only when the stratum initial temperature is 13~20℃,the shallow geothermal energy of ground source heat pump can be rationally exploited and utilized.
引文
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[4]唐永香,李嫄嫄,俞安,等.天津地区浅层地热能赋存条件浅析及前景展望[J].地质调查与研究,2013,36(3):213-220.
[5]苏永强,刘忠凯.河北省衡水市区浅层地热能特征及应用前景分析[J].地质调查与研究,2011,34(1):118-124.
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[7]卫万顺,李宁波,冉伟彦,等.中国浅层地温能资源[M].北京:中国大地出版社,2010.
[8]韩再生,冉伟彦,佟红兵,等.DZ/T 225-2009,浅层地热能勘查评价规范[S].北京:中国标准出版社,2009.
[9]毕文明,岳丽燕.岩土体初始平均温度测试方法探讨[J].地源热泵,2011,(1):18-22.
[10]乔卫来,陈九法,薛琴,等.地埋管换热器热响应测试与模拟研究[J].建筑热能通风空调,2010,29(1):1-6.
[11]尤伟静,刘延锋,郭明晶.地热资源开发利用过程中的主要环境问题[J].安全与环境工程,2013,20(2):24-28.