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Heating Performance and Economic Analysis of Solar-Assisted Cold-Water Phase-Change-Energy Heat Pump System in Series and Parallel Connections

Author

Listed:
  • Yujuan Yang

    (College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266000, China)

  • Ronghua Wu

    (College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266000, China)

  • Yuanbo Yue

    (Qingdao KC Blue New Energy Co., Ltd., Qingdao 266000, China)

  • Yao Zhang

    (College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266000, China)

  • Yuanyuan Sun

    (Qingdao KC Blue New Energy Co., Ltd., Qingdao 266000, China)

  • Shunjie Liu

    (Qingdao KC Blue New Energy Co., Ltd., Qingdao 266000, China)

Abstract

To study the heating performance of a solar-assisted cold-water phase-change-energy heat pump system, its heating performance under series and parallel connections is simulated for a community in Harbin, the influence of ice thickness on the different operation modes is analyzed, and the economy of the system is calculated for series and parallel connections in this paper. The results show that the water supply temperature is higher and more uniform in the parallel operation, and more terminal heat is supplied; the ice thickness has more of an influence on the series connection compared to the parallel connection; and the dynamic payback period is 6.72 years for the series connection and 7.28 years for the parallel connection. This case study can serve as a guide for practical engineering application projects and act as a reference for heating and economic data for the promotion of this heat pump system.

Suggested Citation

  • Yujuan Yang & Ronghua Wu & Yuanbo Yue & Yao Zhang & Yuanyuan Sun & Shunjie Liu, 2023. "Heating Performance and Economic Analysis of Solar-Assisted Cold-Water Phase-Change-Energy Heat Pump System in Series and Parallel Connections," Energies, MDPI, vol. 16(16), pages 1-21, August.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:16:p:5989-:d:1217865
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    References listed on IDEAS

    as
    1. Changqing Liu & Ronghua Wu & Hao Yu & Hao Zhan & Long Xu, 2022. "Heat Transfer Characteristics of Cold Water Phase-Change Heat Exchangers under Active Icing Conditions," Energies, MDPI, vol. 15(19), pages 1-18, October.
    2. Fan, Yi & Zhao, Xudong & Han, Zhonghe & Li, Jing & Badiei, Ali & Akhlaghi, Yousef Golizadeh & Liu, Zhijian, 2021. "Scientific and technological progress and future perspectives of the solar assisted heat pump (SAHP) system," Energy, Elsevier, vol. 229(C).
    3. 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).
    4. Lee, Minwoo & Lee, Dongchan & Park, Myeong Hyeon & Kang, Yong Tae & Kim, Yongchan, 2022. "Performance improvement of solar-assisted ground-source heat pumps with parallelly connected heat sources in heating-dominated areas," Energy, Elsevier, vol. 240(C).
    5. Pereira, Luan D.L. & Yahyaoui, Imene & Fiorotti, Rodrigo & de Menezes, Luíza S. & Fardin, Jussara F. & Rocha, Helder R.O. & Tadeo, Fernando, 2022. "Optimal allocation of distributed generation and capacitor banks using probabilistic generation models with correlations," Applied Energy, Elsevier, vol. 307(C).
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