System performance analysis of a hybrid ground source heat pump with optimal control strategies based on numerical simulations

被引：30
作者：
Hou, Gaoyang [1 ]
Taherian, Hessam [2 ]
Li, Longjun [3 ]
Fuse, Jordan [3 ]
Moradi, Lee [3 ]
机构：
[1] Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China
[2] Univ Alabama Birmingham, Dept Mech Engn, 1720 Second Ave S, Birmingham, AL 35244 USA
[3] Univ Alabama Birmingham, 1720 Second Ave S, Birmingham, AL 35244 USA
来源：
GEOTHERMICS | 2020年 / 86卷
关键词：
Hybrid ground-source heat pump; Horizontal ground loop; Control strategy; TRNSYS; Energy analysis; Thermal analysis;
D O I：
10.1016/j.geothermics.2020.101849
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The ground source heat pump system is recognized as one of the most significant technologies for building heating/cooling system. The development of hybrid ground source heat pump further solves the conventional system's problems such as overly depending on conventional energy and soil thermal balance problem. The hybrid system in this research combines a horizontal ground loop and a liquid dry cooler. Both short-term simulations and long-term simulations were carried out in TRNSYS to analyzed energy variation and soil thermal condition with respect to different diverter heating/cooling set temperatures. In order to achieve automatic control of the working fluid direction, a new TRNSYS model was coded in FORTRAN and imported to TRNSYS 18 environment. The results verify diverter heating/cooling set temperatures' influence to the system overall performance. The recommended operational diverter set temperature range is also given.
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页数：11
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