机构地区: 广东工业大学机电工程学院
出 处: 《太阳能学报》 2011年第1期77-82,共6页
摘 要: 建立了太阳能-土壤源热泵耦合型热水系统实验平台,研究了在秋冬季不同运行条件下该系统的运行特性,分析了地下埋管系统中钻孔回填材料、U型管工作模式、套管内循环液流动模式、套管外管与内管的导热系数比等对系统制热效果的影响。研究表明,太阳能土壤源热泵系统在国内亚热带地区可以获得良好的应用,并给出了埋地换热器的合理形式。 A solar-earth source heat pump system(SESHPS) for hot water was established, and experimental study on SESHPS' s performance characteristics was carried out on this experimental platform under various conditions, some factors influence on the system performance, such as backfill material, U-tube work model, the ratio of its inside tube thermal conductivity to its outer tube's and the flow pattem in concentric tube were analyzed. Study showed that the implementation of the SESHPS worked effectively in subtropical areas in China, and the reasonable underground heat exchanger mode was presented.
关 键 词: 太阳能 土壤源热泵 运行特性 地下埋管系统 实验研究
领 域: [动力工程及工程热物理]