Optimization of Ground Source Heat Pump System Based on TRNSYS in Hot Summer and Cold Winter Region

A cooling tower-assisted ground source heat pump system is proposed to solve the problem of soil heat accumulation in areas with hot summers and mild winters. TRNSYS is used to establish the simulation model of the ground source heat pump system. Taking the ground source heat pump demonstration proj...

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Bibliographic Details
Published in:Buildings (Basel) 2024-09, Vol.14 (9), p.2764
Main Authors: Zhang, Hua, Hao, Shuren, Wen, Mingxing, Bai, Ximin, Liu, Lihong, Zhang, Pengqiong
Format: Article
Language:English
Subjects:
Accumulation
Air conditioning
Analysis
Brittleness
Cold regions
Cooling
Cooling systems
cooling tower ground source heat pump system
Cooling towers
Design
Design optimization
Energy consumption
Geothermal power
Green buildings
Heat
Heat exchangers
Heat pumps
Heat transfer
Mild winters
operation optimization
Optimization
Refrigeration
Refrigeration equipment
Run time (computers)
Simulation
Software
Soil improvement
soil temperature
Summer
Temperature
TRNSYS simulation
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Summary:A cooling tower-assisted ground source heat pump system is proposed to solve the problem of soil heat accumulation in areas with hot summers and mild winters. TRNSYS is used to establish the simulation model of the ground source heat pump system. Taking the ground source heat pump demonstration project in Nanchang City as the research object, the operation effect of the ground source heat pump is simulated and analyzed. The key parameters of the optimization system are proposed, and the operation time of the cooling tower is controlled. The optimization results show that the cooling tower can not only improve the system performance in a short time but also enable long-term stable and efficient operation of the refrigeration system, the compound ground source heat pump system optimized by the cooling tower has almost no soil heat accumulation, and the system performance has been improved. The optimal running time of the cooling tower is 3216~4344 h and 5424~6696 h, and the system running effect is the best at this time. The research results can provide a theoretical basis for the optimal design of the cooling tower auxiliary ground source heat pump system.
ISSN:2075-5309
2075-5309
DOI:10.3390/buildings14092764