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本文建立了基于实际示范工程的季节性蓄热太阳能—土壤源热泵系统的热经济学模型,动态模拟了系统的运行。计算结果表明:系统的年度化成本为10 062元,单位能量成本为65.89元/GJ,单位成本为678.72元/GJ;全年供热供冷总的能效率为55.71%、效率为16.71%、能效比为5.68、效比为0.55,可知该系统经济且节能。另外,能效比和效比相对能效率和效率更具有实际操作意义;分析法能得出更加科学合理的结果,热经济学分析可作为系统优化和多方案经济性比较的依据。
This paper established a thermal economics model of seasonal heat storage solar-ground source heat pump system based on the actual demonstration project, and simulated the operation of the system dynamically. The calculation results show that the annual cost of the system is 10 062 yuan, the unit energy cost is 65.89 yuan / GJ and the unit cost is 678.72 yuan / GJ. The annual total heating and cooling energy efficiency is 55.71% and the efficiency is 16.71 %, Energy efficiency ratio of 5.68, efficiency ratio of 0.55, we can see that the system is economical and energy saving. In addition, the relative efficiency and efficiency of energy efficiency and efficiency are more practical and practical. Analysis can get more scientific and reasonable results, and the analysis of thermal economics can be used as the basis for the comparison of system optimization and multi-program economy.