化工进展2017，Vol.36Issue(11)：4037-4042,6.DOI:10.16085/j.issn.1000-6613.2017-0120
江阴市某建筑地源热泵系统性能的数值模拟
The ground source heat pump numerical simulation of a building in Jiangyin
摘要
Abstract
This paper introduces the ground-source heat pump for a construction in Jiangyin. Using the software of TRNSYS,the underground soil average temperature in 30 years was simulated under the different depths and ratios of cooling and heating loads. The annual trend of COP of the system and part load ratio of heat pump unit in heating and cooling period werer analyzed. The result showed that the performance of buried pipe at 100m depth had a smaller temperature drop and fluctuation than that at 80m and 60m depths. So the deeper the buried pipes were,the more stable of soil average temperatures were. To meet the demand of heating load only,the soil average temperature fell by 2.67℃,while the soil average temperature increased by 2.15℃ to meet the demand of cooling load nly. If to meet the demand of both heating and cooling loads,the soil average temperature fell by just 0.66℃. The averaged COP of the heat pump system was 3.28 in the summer and 2.75 in the winter;and the part load ratio of heat pump unit was low,which resulted in the lower COP of the system. The simulation results provided the basic data for the heat pump project in Yangtze River area.关键词
再生能源/地源热泵/数值模拟/地埋管换热器/性能系数/稳定性Key words
renewable energy/ground-source heat pump/numerical simulation/ground heat exchanger/coefficient of performance(COP)/stability分类
能源科技引用本文复制引用
刘广平,骆超,龚宇烈,邱泽晶,郑鑫..江阴市某建筑地源热泵系统性能的数值模拟[J].化工进展,2017,36(11):4037-4042,6.基金项目
国家电网公司科学技术项目(SGTYHT/15-JS-191). （SGTYHT/15-JS-191）
