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Performance Analysis and Optimization of Solar-Coupled Mine Water-Source Heat Pump Combined Heating and Cooling System

Author

Listed:
  • Chang Zhao

    (Energy School, Xi’an University of Science and Technology, Xi’an 710054, China)

  • Jianhui Zhao

    (Energy School, Xi’an University of Science and Technology, Xi’an 710054, China)

  • Mei Wang

    (Energy School, Xi’an University of Science and Technology, Xi’an 710054, China)

Abstract

To address the energy consumption issue in mining area buildings, this paper proposed a solar-coupled mine water-source heat pump combined heating and cooling (SMWHP-CHC) system, taking the employee dormitory building group of a coal mining enterprise in Tongchuan City, China, as a case study. The system utilizes renewable solar energy and waste heat recovered from mine water as composite heat sources, and utilizes the cold energy in mine water as a cooling source to meet the demands for space heating, space cooling, and annual domestic hot water of the building in a sustainable manner. The simulation model of the system was established by TRNSYS to analyze the system’s annual operational performance. The results indicated that the system exhibited a positive energy efficiency and environmental performance under different operating conditions. The heating coefficients of the performance of the system (COP sys ) during the space heating season and transition season were 3.54 and 18.6, and the cooling energy efficiency ratio of the system (EER sys ) was 3.79. In addition, aiming to minimize the annual cost of the system, multiple crucial device parameters were synchronously optimized employing the PSO-HJ hybrid optimization algorithm through the GenOpt 2 software. The annual cost of the optimized system was reduced by 8.82%, and the investment cost was significantly reduced, while the performance was also improved. This study can provide theoretical support for the sustainable engineering application of the SMWHP-CHC system in mining area buildings.

Suggested Citation

  • Chang Zhao & Jianhui Zhao & Mei Wang, 2024. "Performance Analysis and Optimization of Solar-Coupled Mine Water-Source Heat Pump Combined Heating and Cooling System," Sustainability, MDPI, vol. 16(11), pages 1-20, June.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:11:p:4752-:d:1407688
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