技术中心

【英文篇名】 Experimental investigation into heat exchange performance of three ground heat exchangers in winter in hot summer and warm winter zone 【作者中文名】 陈颖; 杨敏; 史保新; 【作者英文名】 Chen Ying; Yang Min and Shi Baoxin Guangdong University of Technology; Guangzhou; China; 【作者单位】 广东工业大学; 【文献出处】 暖通空调, Heating Ventilating 双U形管; 单U形管; 套管; 换热量; 【英文关键词】 ground heat exchanger; double U tube; single U tube; tube-in-tube; heat exchange; 【摘要】 搭建了实验台,研究了单U形管、双U形管和套管换热器分别在热泵连续运行与间歇运行方式下换热量随时间的变化趋势。结果显示,双U形管换热器的单位井深换热量最大,单U形管换热器次之,套管换热器最小;间歇运行方式比连续运行方式下的换热量大。 【英文摘要】 Establishes an experiment system for single U tube,double U tube and tube-in-tube heat exchangers,studies the variation of the heat exchange with time during heat pump continuous and intermittent operating separately.The results show that the heat exchange per unit well depth of the double U tube heat exchanger is the largest,that of the single U tube heat exchanger takes the second place and that of tube-in-tube heat exchanger last,and that the heat exchange performance during intermittent operating is bet... 【基金】 广州市科技攻关项目资助(编号:2005Z3-D0491)