Analysis on the Energy Efficiency of Geothermal Heat Pump for a High-rise Office Building
This paper analyzes an air-conditioning system of an actual project in Tianjin,China that uses geothermal and water loop heat pumps (GWLHP) in winter.The concept of exergy has been introduced to establish a universal efficiency evaluation standard for this kind of geothermal heat pump system.In the paper,the energy and exergy analysis of the GWLHP system in the whole winter were conducted together.We compared its primary energy consumption with that by using hot water from the city heating network.An exergy assessment and modeling of the geothermal heat pump system were studied as well.Basing on the analysis above,the exergy efficiency value of the GWLHP is 48.45%,and the geothermal heat pump system can save more energy enormously than normal heating system with heating network.This study also analyzed its economical and technical feasibilities by using geothermal heat as the sole heating source.
Geothermal Water loop heat pump Energy conservation Exergy
Junjie Liu Mingxiu Jiang Ruiying Qi Shusen Liu
School of Environmental Science and Technology,Tianjin University,Tianjin,China Department of Environment Science and Equipment,School of Textiles,Tianjin Polytechnic University,T
国际会议
The First International Conference on Building Energy and Environment(第一届建筑能源与环境国际会议)
大连
英文
437-444
2008-07-01(万方平台首次上网日期,不代表论文的发表时间)