太阳能、蓄热与地源热泵组合系统运行模式与实验研究
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摘要
在建立的太阳能、蓄热(土壤跨季节蓄热与相变蓄热)与地源热泵组合系统(SGCHPES)基础上,开展理论模拟与实验研究,对SGCHPES系统的运行模式、(土壤、相变)蓄热及能量进行分析。
在TRNSYS平台上,建立系统模型并进行模拟分析。研究全年的太阳能-蓄热与地源热泵供热水系统、地源热泵供暖空调系统、土壤跨季节蓄热和相变蓄热;SGCHPES系统的月能耗、季节能耗和年能耗、太阳能和地表能对系统的组合匹配及贡献比例、全年土壤热平衡和土壤温度变化。模拟得到SGCHPES系统年总能耗中,可再生能源(太阳能和地表能)占84%,其中太阳能和地表能的贡献比例分别为31%和69%。
结合天津某建筑物建立的示范工程,分析2009年6月~2010年3月的实验数据,研究土壤跨季节蓄热、石蜡相变蓄热和有/无土壤蓄热时的土壤温度及冬/夏季土壤热平衡变化;进行太阳能集热与地源热泵系统的实验、SGCHPES系统的供暖、空调、供热水的运行情况分析,得到系统中太阳能、地表能、电能的比例分别为13%、59%和28%,可再生能源(太阳能和地表能)为总能耗的72%。
The simulation and experiment study on Solar-Ground Coupled Heat Pump with Energy Storage—Seasonal storage in soil & Phase change heat storage (SGCHPES) system was carried out. Analyses on the SGCHPES operation mode, energy storage (Seasonal storage in soil & Phase change heat storage) and energy utilzation were also obtained.
Based on TRNSYS platform, the model was established and simulation study was carried out on: solar-ground coupled heat pump hot water system, ground coupled heat pump system, seasonal storage in soil and phase change heat storage, system energy consumption of every month, season and year, energy combination and matching relationships between solar and ground source, and their contribution ratio, the temperature and energy balance in soil. In a year, renewable energy (solar and ground source) is 84% of the total, the ratio of solar and ground source is 31% and 69%.
The experiments on a demonstration project of SGCHPES in Tianjin from June 2009 to March 2010, the temperature and energy balance in soil in winter & summer with & without seasonal storage were obtained resperctively. The experiments on solar collector and ground coupled heat pump system, and operation conditions of heating and air-conditioning were analyzed. The proportion of solar, ground source and electricity is 13%, 59% and 28% resperctively, renewable energy (solar and ground source) accounted for 72% of the total energy consumption.
在TRNSYS平台上,建立系统模型并进行模拟分析。研究全年的太阳能-蓄热与地源热泵供热水系统、地源热泵供暖空调系统、土壤跨季节蓄热和相变蓄热;SGCHPES系统的月能耗、季节能耗和年能耗、太阳能和地表能对系统的组合匹配及贡献比例、全年土壤热平衡和土壤温度变化。模拟得到SGCHPES系统年总能耗中,可再生能源(太阳能和地表能)占84%,其中太阳能和地表能的贡献比例分别为31%和69%。
结合天津某建筑物建立的示范工程,分析2009年6月~2010年3月的实验数据,研究土壤跨季节蓄热、石蜡相变蓄热和有/无土壤蓄热时的土壤温度及冬/夏季土壤热平衡变化;进行太阳能集热与地源热泵系统的实验、SGCHPES系统的供暖、空调、供热水的运行情况分析,得到系统中太阳能、地表能、电能的比例分别为13%、59%和28%,可再生能源(太阳能和地表能)为总能耗的72%。
The simulation and experiment study on Solar-Ground Coupled Heat Pump with Energy Storage—Seasonal storage in soil & Phase change heat storage (SGCHPES) system was carried out. Analyses on the SGCHPES operation mode, energy storage (Seasonal storage in soil & Phase change heat storage) and energy utilzation were also obtained.
Based on TRNSYS platform, the model was established and simulation study was carried out on: solar-ground coupled heat pump hot water system, ground coupled heat pump system, seasonal storage in soil and phase change heat storage, system energy consumption of every month, season and year, energy combination and matching relationships between solar and ground source, and their contribution ratio, the temperature and energy balance in soil. In a year, renewable energy (solar and ground source) is 84% of the total, the ratio of solar and ground source is 31% and 69%.
The experiments on a demonstration project of SGCHPES in Tianjin from June 2009 to March 2010, the temperature and energy balance in soil in winter & summer with & without seasonal storage were obtained resperctively. The experiments on solar collector and ground coupled heat pump system, and operation conditions of heating and air-conditioning were analyzed. The proportion of solar, ground source and electricity is 13%, 59% and 28% resperctively, renewable energy (solar and ground source) accounted for 72% of the total energy consumption.
引文
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[18]王双喜,马春生,张静,赵聪慧,秦刚,节能温室太阳能土壤蓄热加温系统的研究,农业工程学报,2003,19(5):197~203
[19]智艳生,严寒地区太阳能土壤蓄热供暖供冷实验研究与数值模拟:[硕士学位论文],哈尔滨;哈尔滨工业大学,2003
[20]张文雍,郑茂余,王潇,杨涛,严寒地区太阳能土壤源热泵季节性土壤蓄热,煤气与动力,2009,29(8):21~24
[21]余延顺,马最良,土壤蓄冷与释冷过程的模拟研究,太阳能学报,2005,26(4):487~492
[22]曲云霞,地源热泵系统模型与仿真:[博士学位论文],西安;西安建筑科技大学,2004
[23] Ingersoll L.R. and H. J. Plass Theory of the ground pipe heat source for the heat pump. Heating, Piping and Air Conditioning.1918, July:119~122
[24] Cenk Yavuzturk. Modeling of vertical ground loop heat exchangers for ground source heat pump systems Ph.D. dissertation, Oklahoma State University 1999
[25] Bose JE. Geothermal Heat Pumps Introductory Guide Oklahoma State University ground source heat pump publications 1997
[26] SP Kavanaugh Simulation and experimental verification of vertical ground coupled heat pump systems Ph.D. dissertation, Oklahoma State University 1985
[27] Per Eskilson, Numerical study of radical and vertical mesh division for a single heat extraction borehole. Lund Sweden, 1986
[28] P Eskilson, Thermal analysis of heat extraction boreholes, University of Lund Sweden, 1987
[29] SP Rottmayer, W.A.Beckman and J.W.Mirchell,Simulation of a Single Vertical U-Tube Ground Heat Exchanger in an Infinite Medium. ASHRAE Transactions 1997, 103(2):651~659
[30] J A Shonder, J VEeck, Determining Effective Soil Formation Thermal Properties from Field Eata Using Parameter Estimation Technique. ASHRAE transactions 1999, 105(1): 223~231
[31]赵军,陈雁,李新国,基于跨季节地下蓄热系统的模拟对热储利用模式的优化,华北电力大学学报,2007,34(2):74~77
[32]王华军,赵军,宋著坤,跨季节蓄热太阳能集中供热技术,太阳能,2005,4:27~31
[33]赵军,黄涛,李新国,土壤蓄热性能的研究,天津大学学报,2005,38(7):5~9
[34]杨睿,韩敏霞,太阳能-地源热泵组合空调/热水系统的设计与应用,中国建设动态:阳光能源,2006,12:22~24
[35]朱强,赵军,刘益青,太阳能-土壤蓄热技术在公路融雪中的应用,建设科技,2005,14:70~71
[36]崔俊奎,赵军,李新国,曲航,韩敏霞,跨季节蓄热地源热泵地下蓄热特性的理论研究,2008,29 (8):921~926
[37]韩敏霞,太阳能土壤跨季节蓄热-地源热泵组合理论与实验研究:[硕士学位论文],天津;天津大学,2007
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