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Experimental Research of a Water-Source Heat Pump Water Heater System

Author

Listed:
  • Zhongchao Zhao

    (School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, 212000, China)

  • Yanrui Zhang

    (School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, 212000, China)

  • Haojun Mi

    (School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, 212000, China)

  • Yimeng Zhou

    (School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, 212000, China)

  • Yong Zhang

    (School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, 212000, China)

Abstract

The heat pump water heater (HPWH), as a portion of the eco-friendly technologies using renewable energy, has been applied for years in developed countries. Air-source heat pump water heaters and solar-assisted heat pump water heaters have been widely applied and have become more and more popular because of their comparatively higher energy efficiency and environmental protection. Besides use of the above resources, the heat pump water heater system can also adequately utilize an available water source. In order to study the thermal performance of the water-source heat pump water heater (WSHPWH) system, an experimental prototype using the cyclic heating mode was established. The heating performance of the water-source heat pump water heater system, which was affected by the difference between evaporator water fluxes, was investigated. The water temperature unfavorably exceeded 55 °C when the experimental prototype was used for heating; otherwise, the compressor discharge pressure was close to the maximum discharge temperature, which resulted in system instability. The evaporator water flux allowed this system to function satisfactorily. It is necessary to reduce the exergy loss of the condenser to improve the energy utilization of the system.

Suggested Citation

  • Zhongchao Zhao & Yanrui Zhang & Haojun Mi & Yimeng Zhou & Yong Zhang, 2018. "Experimental Research of a Water-Source Heat Pump Water Heater System," Energies, MDPI, vol. 11(5), pages 1-13, May.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:5:p:1205-:d:145387
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    References listed on IDEAS

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    1. Baik, Young-Jin & Kim, Minsung & Chang, Ki-Chang & Lee, Young-Soo & Ra, Ho-Sang, 2014. "Potential to enhance performance of seawater-source heat pump by series operation," Renewable Energy, Elsevier, vol. 65(C), pages 236-244.
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    Cited by:

    1. Zhe Wang & Fenghui Han & Yulong Ji & Wenhua Li, 2020. "Performance and Exergy Transfer Analysis of Heat Exchangers with Graphene Nanofluids in Seawater Source Marine Heat Pump System," Energies, MDPI, vol. 13(7), pages 1-17, April.
    2. Fujun Ju & Zhenzhen Mu & Guozhu Li & Lihao Hou & Xiaowei Fan & Hongtao Liu & Qinglei Liu & Wenbo Liu, 2023. "Experimental Study on the Feasibility of Quick Startup of Instant Heat Pump Water Heaters Based on Active Control of Heat Sink Flow Step," Energies, MDPI, vol. 16(17), pages 1-15, August.
    3. Wenting Ma & Moon Keun Kim & Jianli Hao, 2019. "Numerical Simulation Modeling of a GSHP and WSHP System for an Office Building in the Hot Summer and Cold Winter Region of China: A Case Study in Suzhou," Sustainability, MDPI, vol. 11(12), pages 1-17, June.
    4. 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.
    5. 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.
    6. Xiang Gou & Shian Liu & Yang Fu & Qiyan Zhang & Saima Iram & Yingfan Liu, 2018. "Experimental Study on the Performance of a Household Dual-Source Heat Pump Water Heater," Energies, MDPI, vol. 11(10), pages 1-18, October.
    7. Ignacio López Paniagua & Ángel Jiménez Álvaro & Javier Rodríguez Martín & Celina González Fernández & Rafael Nieto Carlier, 2019. "Comparison of Transcritical CO 2 and Conventional Refrigerant Heat Pump Water Heaters for Domestic Applications," Energies, MDPI, vol. 12(3), pages 1-17, February.
    8. Natanael Bolson & Maxim Yutkin & Tadeusz Patzek, 2023. "Primary Power Analysis of a Global Electrification Scenario," Sustainability, MDPI, vol. 15(19), pages 1-20, October.
    9. Shucai Bai & Fangyi Li & Wu Xie, 2022. "Green but Unpopular? Analysis on Purchase Intention of Heat Pump Water Heaters in China," Energies, MDPI, vol. 15(7), pages 1-19, March.

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