摘要
建立了土壤源热泵系统各部分的数学模型,其中对地埋管换热器热阻的求解采用边界元法。结合寒冷地区的气候特点和供暖要求,对供暖系统运行特性进行模拟研究。在实地建造的土壤源热泵系统运行过程中,利用专门研制的测试装置对其供暖运行特性进行测试,并将实验结果与模拟结果进行对比分析。分析结果表明,系统各项性能的模拟结果和实验结果偏差不超过4%,从而证明了所建立的土壤源热泵系统的数学模型和模拟程序的正确性,可较准确地模拟出土壤源热泵在寒冷地区冬季供暖的动态工况。
Mathematical models of ground-source heat pump system adopted to solve the thermal resistance of underground heat exchange were built, and boundary element method was r. Simulation study on operation characteristics of heating system was performed to meet the climate characteristics and heating requirement. Specially developed e- quipment was used to measure the heating characteristics of the actual ground-source heat pump system, and the data were compared with that from simulation. The results indicate that the deviation between simulation data and experiment information are within 4%. Therefore, the mathematical models and simulation process of ground-source heat pump system are suitable, and can accurately simulate the heating situation of ground-source heat pump system in cold area.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2012年第10期1789-1796,共8页
Acta Energiae Solaris Sinica
关键词
寒冷地区
土壤源热泵
边界元法
地埋管换热器
运行特性
cold area
ground-source heat pump
boundary element method
underground heat exchanger
opera-tion characteristics
