内蒙古地区太阳能 - 地源热泵系统运行特性研究

(1.内蒙古科技大学 能源与环境学院,内蒙古 包头 014010; 2. 天津大学中低温热能高效利用教育部重点实验室,天津 300072)

太阳能 - 地源热泵; TRNSYS; 土壤温度; 运行模式; 集热器参数

Study on theoperation characteristics of solar energy-ground source heat pump system in Inner Mongolia
JIN Guang1, ZHANG Hongge1, GUO Shaopeng1,2, HAO Nan1

(1.School of Energy and Environment, Inner Mongolia University of Science and Technology,Inner Mongolia, Baotou 014010, China; 2. Key Laboratory of Low-Cost Thermal Energy Efficient Utilization of Ministry of Education,Tianjin University, Tianjin 300072, China)

Solar energy-ground source heat pump; TRNSYS; soil temperature; operating mode collector parameters

DOI: 10.15986/j.1006-7930.2019.010.021

备注

通过对我国内蒙古地区的太阳能 - 地源热泵系统运行模式及性能参数进行研究,得到适合该地区运行的最佳方式.以包头市住宅建筑为模型,建筑面积为6 451.94 m2,对该建筑的太阳能 - 地源热泵系统的辅助模式与补热模式两种模式进行仿真,结果表明:辅助模式明显优于补热模式.集热器参数在最优条件下,太阳能 - 地源热泵系统连续运行5a时,辅助模式下的土壤温度仅下降0.32 ℃.COP 均值为4.82,辅助模式较补热模式的COP值提高24.9%.又分析了不同模式下的热泵机组制热量及系统的耗电量,辅助模式较补热模式下热泵机组的年制热量降低49.3%,年耗电量降低了4.26%.

Through the research on the operation mode and performance parameters of the solar-ground source heat pump system in Inner Mongolia in China, the best way to operate is obtained in this area. Taking a residential building, which covers an area of 6 451.94 m2 in Baotou as the model, the auxiliary mode and the supplementary mode of the solar-ground source heat pump system of the building are simulated. Results show that the auxiliary mode is obviously better than the heating mode. When the collector parameters under optimal conditions and the solar-ground source heat pump system is continuously operated for 5 years, the soil temperature in the auxiliary mode only decreased by 0.32 °C, the COP average is 4.82, and the assist mode increased by 24.9% as compared with the supplemental heat mode. Different modes of heating capacity of the heat pump unit and the power consumption of the system are aslso an analyzed. The auxiliary mode is reduced by 49.3% and annual electricity consumption decreased by 4.26% compared with the annual heat of the heat pump unit in the supplementary heat mode.