东华大学学报（英文版）2007，Vol.24Issue(6)：749-755,7.
Performance and Optimization for a Ground-Coupled Liquid Loop Heat Recovery Ventilation System
Performance and Optimization for a Ground-Coupled Liquid Loop Heat Recovery Ventilation System
ZHOU Ya-su 1Per FAHLEN 2Torbj(o)rn LINDHOLM2
作者信息
- 1. Department of Building Environment and Equipment Engineering,Donghua University,Shanghai201620,China
- 2. Department of Building Services Engineering,Chalmers University of Technology,SE-412 96,Gothenburg,Sueden
- 折叠
摘要
Abstract
Ground-coupled heat pumps(GCHP) arecommonly used in residential heating system. To mitigatethe boreholes temperature dropping with operating time, anew exhaust-air recharging system is developed. The newrecharging system can be used in three operational modes.In this paper, a ground-coupled heat recovery ventilation(HRV) model is discussed. A thermal model is set up tofind the optimal brine flow rate and heat transfer allocationratio between exhaust and supply coils for maximum heatrecovery efficiency. Contrary to the conventional liquid-loopHRV systems, the brine temperature entering the exhaustcoil never goes blow zero(0℃), and hence defrosting isneedless in the ground-coupled HRV system. This can makethe ground-coupled HRV system over 20% more efficientthan a conventional HRV system at low outdoortemperatures.关键词
a ground-coupled HRV system/ thermal model/heat recovery efficiency/ coils allocation ratio/ brineflow rateKey words
a ground-coupled HRV system/ thermal model/heat recovery efficiency/ coils allocation ratio/ brineflow rate分类
能源科技引用本文复制引用
ZHOU Ya-su,Per FAHLEN,Torbj(o)rn LINDHOLM..Performance and Optimization for a Ground-Coupled Liquid Loop Heat Recovery Ventilation System[J].东华大学学报（英文版）,2007,24(6):749-755,7.
