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

Author

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  • 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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    References listed on IDEAS

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    1. Zhang, Dongwei & Gao, Zhao & Fang, Chenglei & Shen, Chao & Li, Hang & Qin, Xiang, 2022. "Simulation and analysis of hot water system with comprehensive utilization of solar energy and wastewater heat," Energy, Elsevier, vol. 253(C).
    2. Menéndez, Javier & Ordónez, Almudena & Fernández-Oro, Jesús M. & Loredo, Jorge & Díaz-Aguado, María B., 2020. "Feasibility analysis of using mine water from abandoned coal mines in Spain for heating and cooling of buildings," Renewable Energy, Elsevier, vol. 146(C), pages 1166-1176.
    3. Yurim Kim & Jonghun Lim & Jae Yun Shim & Seokil Hong & Heedong Lee & Hyungtae Cho, 2022. "Optimization of Heat Exchanger Network via Pinch Analysis in Heat Pump-Assisted Textile Industry Wastewater Heat Recovery System," Energies, MDPI, vol. 15(9), pages 1-16, April.
    4. Amasyali, Kadir & El-Gohary, Nora M., 2018. "A review of data-driven building energy consumption prediction studies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P1), pages 1192-1205.
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