摘要
介绍了作者自主设计实施的地源热泵热水-空调冷热联供系统,运用单因素方法,研究地埋管总深度、地埋管及空调的循环介质流量等对热泵系统运行特性的影响,提出土壤源制热水和冷热联供两种工况下的合理运行方式。研究结果表明土壤源制热水间歇运行时既满足生活热水需求,又避免土壤源长期过度取热;夏季采用空调冷凝热为建筑制冷的同时制取生活热水,机组综合能效比达1:7以上,使热水系统全年运行成本大大降低。
Hot-water and air-conditioning combined ground source heat pump system serf-designed and actualized was describes. The study on two running features of hot water-supply from ground source and heating-cooling combined system was cartied out. With the single factor method, influences of well depth and cooling-water flow of buried pipe and water flow of air-conditioning on two running features of hot water-supply from ground source and heating-cooling combined system are studied. The reasonable running modes are suggested. The test result indicates that hot water-supply from ground source running in the intermittent movement can need demand for hot water and avoid long-term excess thermal discharge, so that system keep operating in high efficiency . When buildings obtain refrigeration and hot water with air-conditioning condenser heat , integrated energy efficiency rate with heat pump unit exceeds the ratio of one to seven, so that operation costs of heating water system is greatly reduced all year.
出处
《流体机械》
CSCD
北大核心
2008年第12期57-61,共5页
Fluid Machinery
基金
财政部
建设部可再生能源建筑应用示范资助项目
广西科学研究与技术开发计划资助项目(0719001-15)
广西大学科学技术研究重点基金项目(2004ZD02)
关键词
地源热泵
土壤换热器
冷热联供
空调冷凝热
能效比
round source heat pump
ground heat exchangers
heating-cooling combined system
air-conditioning condenser heat
coefficient of performance
