【作者】 贾艳敏；

【导师】 李新国；

【作者基本信息】 天津大学 ， 制冷与低温工程， 2010， 硕士

【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%。更多还原

【Abstract】 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.更多还原