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Performance Analysis of a Combined Solar-Assisted Heat Pump Heating System in Xi’an, China

Author

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  • Chao Huan

    (Energy School, Xi’an University of Science and Technology, Xi’an 710054, China
    Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi’an 710054, China)

  • Shengteng Li

    (Energy School, Xi’an University of Science and Technology, Xi’an 710054, China
    Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi’an 710054, China)

  • Fenghao Wang

    (School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Lang Liu

    (Energy School, Xi’an University of Science and Technology, Xi’an 710054, China
    Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi’an 710054, China)

  • Yujiao Zhao

    (Energy School, Xi’an University of Science and Technology, Xi’an 710054, China
    Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi’an 710054, China)

  • Zhihua Wang

    (School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Pengfei Tao

    (Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Land and Resources, Xi’an 710021, China)

Abstract

This study proposed a combined solar-assisted heat pump (SAHP) system that could operate in the serial mode or parallel mode. For this proposed system, a stable year-round operation could be achieved without the assistance of electric heating or low-temperature heat pump. By analyzing the heat balance equations, a correlation of the combined SAHP system for the two modes switched was obtained, which provided a theoretical basis for the optimal operation of this system. In addition, the performance of the proposed system applied in a university bathroom in Xi’an district was investigated using TRNSYS. The results illustrated that compared to the serial and parallel systems, the proposed system exhibited a good performance on energy efficiency. The annual average coefficient of performance (COP) of the proposed system was 5.7, obviously higher than those of the serial system and the parallel system, which were 3.3 and 4.3, respectively. Therefore, the results in this study could provide the theoretical guidance and reference for practical engineering design.

Suggested Citation

  • Chao Huan & Shengteng Li & Fenghao Wang & Lang Liu & Yujiao Zhao & Zhihua Wang & Pengfei Tao, 2019. "Performance Analysis of a Combined Solar-Assisted Heat Pump Heating System in Xi’an, China," Energies, MDPI, vol. 12(13), pages 1-20, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:13:p:2515-:d:244347
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    References listed on IDEAS

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    Cited by:

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    2. Chandan Swaroop Meena & Binju P Raj & Lohit Saini & Nehul Agarwal & Aritra Ghosh, 2021. "Performance Optimization of Solar-Assisted Heat Pump System for Water Heating Applications," Energies, MDPI, vol. 14(12), pages 1-17, June.

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