Optimum Design of Ground Source Heat Pump Systems Based on Long-term Performance Characteristics
首发时间:2008-07-03
Abstract:An optimal ground source heat pump (GSHP) system assures a problem-free operation over the entire life cycle, proper design method for the GSHP system is crucial. Different from traditional design methods, the presented method is modified by the long-term performance of a practical GSHP system, which is directly reflected by continuous temperature change of the ground, the ground thermal properties and other influential factors. Theoretically the operation of designed GSHP is simulated based on degree-day boundary conditions and building loads during the periods of ten years. Continuous experiment validation on the practical GCHP system has been carried out among the years of 2003 to 2007, using a computer data acquisition system. Through the comparison between experimental data and simulated results, the optimum design method of GSHP system is verified in practice.
keywords: Ground source heat pump (GSHP) ground coupled heat exchangers (GCHE) system design long-term performance
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基于长期运行特性的地源热泵系统设计方法
摘要:设计合理的地源热泵(GSHP)系统可以确保在其使用寿命期间不会出现较大的运行方面的问题,因此GSHP系统的设计方法是至关重要的。与传统的设计方法不同,本文提出一种经过修正的设计方法,它同时考虑了土壤温度场的季节性变化、不同土壤的热物性以及其它一些重要的影响因素,并且经过实际地源热泵工程的长期运行验证。综合考虑所在地区度日值边界条件和实际建筑物的负荷,利用该方法进行了为期十年的运行模拟。同时,通过数据采集系统对一项实际运行的GSHP示范工程在2003-2007年期间的连续运行数据进行了分析。将理论模拟和实际运行数据相比较,验证了本文所提出的GSHP系统设计方法的合理性。
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No.2267925944412150****
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