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本文论述了地源热泵的技术原理和技术特点,并在概括国内外地源热泵发展现状的基础上,为地源热泵在我国的推广应用提出了可行性建议。地源热泵技术作为一种本土、高效、环保、节能和可持续发展的能源技术,必将会在我国得到广泛的推广和应用。 相似文献
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太阳能-土壤源热泵系统(SESHPS)及其研究开发 总被引:5,自引:0,他引:5
综述分析了国内外太阳能-土壤源热泵的研究现状,介绍了其结构、工作原理、运行方式及主要技术优点;指出太阳能-土壤源热泵研究与开发中的核心问题及在目前条件下进行研究开发所应注意的问题,最后展望了其应用前景。 相似文献
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太阳能地源热泵蓄能空调系统的研究 总被引:1,自引:0,他引:1
奥运科技专项课题“新能源综合利用建筑研究与示范”,将新能源与建筑有效结合。综合采用了建筑节能技术、太阳能空调制冷采暖、太阳能蓄热(冷)技术、蓄能地板采暖技术、地源热泵技术。新能源在建筑供暖中的比例为81.46%。 相似文献
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漳州地热位于市区内,可供城市生活热水用水。文中较详细地介绍了漳州城市生活热水地热供应系统,指出了第一期地热工程的主体项目-地热水厂的经济效益较差的原因。 相似文献
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Ground source heat pumps (GSHP) give zero-carbon emission heating at a residential level. However, as the heat is discharged, the temperature of the ground drops, leading to a poorer efficiency. Borehole inter-seasonal thermal storage coupled with GSHP maintains the efficiency at a high level. To adequately utilize the high performance of combined GSHP and the borehole system to further increase system efficiency and reduce cost, such a combined heating system is incorporated into the interconnected multi-carrier system to support the heat load of a community. The borehole finite element (FE) model and an equivalent borehole transfer function are proposed and respectively applied to the optimisation to analyze the variation of GSHP performance over the entire optimisation time horizon of 24 h. The results validate the borehole transfer function, and the optimisation computation time is reduced by 17 times compared with the optimisation using the FE model. 相似文献
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从沼气、热泵、太阳能和风能等方面可再生能源技术存在的问题和解决措施入手,叙述了太原市可再生能源发展的空间,指出,发展可再生能源是调整太原市能源结构,改进太原市环境质量的重大措施,也是保证能源安全的重大措施。 相似文献
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Yusuf Ali Kara 《国际能源研究杂志》2007,31(15):1504-1516
An experimental study is performed to determine the performance of a ground source heat pump (GSHP) system in the heating mode in the city of Erzurum, Turkey. The GSHP system using R‐134a as refrigerant has a single U‐tube ground heat exchanger (GHE) made of polyethylene pipe with a 16 mm inside diameter. The GHE was placed in a vertical borehole with 55 m depth and 203.2 mm diameter. The average coefficients of performance (COP) of the GSHP system and heat pump in heating mode are calculated as 2.09 and 2.57, respectively. The heat extraction rate per meter of the borehole is determined as 33.60 W m?1. Considering the current gas and electric prices in Erzurum city, the equivalent COP of the GSHP system should be 2.92 for the same energy cost comparing with natural gas. The virgin ground in Erzurum basin has high permeability and low thermal conductivity. In order to improve the thermal efficiency of GHE and thus improve COP of a GSHP in the basin, the borehole should be backfilled with sand as low‐cost backfill material and a 1 to 2 m thick surface plug of clay should be inserted. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
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为了缓解埋管区域土壤的热量堆积问题,提出了埋管换热器按内中外、块状、间隔三种分区运行的策略,利用CFD软件建立了10×10的井群换热模型,对地源热泵系统在三种分区与不分区运行策略下运行十年进行数值模拟,分析不同分区运行策略对土壤温度分布和土壤热堆积特性的影响。模拟结果可知:不分区、内中外分区、块状分区、间隔分区四种运行策略下埋管区域的平均温度分别为25.23、23.31、23.06、23.28℃,最高温度分别为40.62、32.77、40.65、38.93℃;分区运行较不分区运行可以有效缓解热堆积作用,埋管区域整体温度较不分区运行时降低了2.00℃左右,内中外分区策略可以显著缓解埋管区域热堆积。 相似文献