文档介绍：
Engineering application analysis on ground-coupled heat
pump system in hot summer and cold winter region
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CHEN Jinhua1, XIA Lei2*
(1. Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment of Ministory of
Education, Chongqing 400045;
2. School of Urban Construction & Environmental Engineering, Chongqing University,
Chongqing 400045)
Abstract: The performance and energy efficiency of seven ground-coupled heat pump (GCHP)
systems in hot summer and cold winter region are analyzed on the basis of summer and winter testing
data pared with that of air source heat pump system as well as screw water chiller with boiler
system. The results demonstrate that: the cooling energy efficiency ratio reaches ~ for units and
~ for systems, the heating energy efficiency reaches ~ for units and ~ for systems.
Rates of improvement in energy efficiency of GCHP system are %~% for cooling and
%~% for pared with air source heat pump system. The cooling energy efficiency
ratio of GCHPs is a little bit higher than that of water chiller, whereas the heating energy efficiency
ratio is %~% higher than that of boiler. The energy saving rate is obvious.
Key words: ground-coupled heat pump; hot summer and cold winter; energy efficiency ratio for unit;
energy efficiency ratio for system; energy saving rate