Simulation of hybrid ground-coupled heat pump with domestic hot water heating systems using HVACSIM

被引:51
作者
Cui, Ping [1 ]
Yang, Hongxing [1 ]
Spitler, Jeffrey D. [2 ]
Fang, Zhaohong [3 ]
机构
[1] Hong Kong Polytech Univ, Dept Bldg Serv Engn, Hong Kong, Hong Kong, Peoples R China
[2] Oklahoma State Univ, Sch Mech Engn, Stillwater, OK 74078 USA
[3] Shandong Univ Architecture & Engn, Ground Source Heat Pump Res Ctr, Jinan, Peoples R China
关键词
hybrid ground-coupled heat pump; domestic hot water; ground heat exchanger; thermal storage water tank;
D O I
10.1016/j.enbuild.2008.03.001
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
A hybrid ground-coupled heat pump (HGCHP) with domestic hot water (DHW) supply system has been proposed in this paper for space cooling/heating and DHW supply for residential buildings in hot-climate areas. A simulation model for this hybrid system is established within the HVACSIM+ environment. A sample system, applied for a small residential apartment located in Hong Kong, is hourly simulated in a typical meteorological year. The conventional GCHP system and an electric heater for DHW supply are also modeled and simulated on an hourly basis within the HVACSIM+ for comparison purpose. The results obtained from this case study show that the HGCHP system can effectively alleviate the imbalanced loads of the ground heat exchanger (GHE) and can offer almost 95% DHW demand. The energy saving for DHW heating is about 70% compared with an electric heater. This proposed scheme, i.e. the HGCHP with DHW supply, is suitable to residential buildings in hot-climate areas, such as in Hong Kong. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:1731 / 1736
页数:6
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