IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v135y2014icp98-107.html
   My bibliography  Save this article

Investigation of defrosting water retention on the surface of evaporator impacting the performance of air source heat pump during periodic frosting–defrosting cycles

Author

Listed:
  • Li, L.T.
  • Wang, W.
  • Sun, Y.Y.
  • Feng, Y.C.
  • Lu, W.P.
  • Zhu, J.H.
  • Ge, Y.J.

Abstract

To investigate the impact of defrosting-water retention on the surface of heat exchangers of the air source heat pump (ASHP) performance during frosting–defrosting cycles, an experimental study has been conducted. Testing was carried out in a controlled-environment chamber with ASHP operational data collected over 16 periodic frosting–defrosting cycles spanning a 360-min period. It was found that the defrosting-water retention undergoes three stages: single-phase water, a mixture of water and ice, followed by a predominance of ice. In this study, the third stage appears after the unit has been in operation for 256min. A “permafrost area” forms on the lower quadrant of the heat exchanger, which occupies over 20% of the total heat exchanger surface. This area remained continuously occupied regardless of whether the unit was in a frosting or defrosting cycle. The appearance of this “permafrost area” not only impacts the performance of the ASHP, it also indicates the beginning of repetitive “shutdown accidents” for the ASHP units. It is the first time that these phenomena, originally caused by the defrosting-water retention have been revealed. And a quantitative analysis is presented for the resulting performance degradation of the ASHP related to the “permafrost area” conditions and the related “repetitive shutdown accidents”.

Suggested Citation

  • Li, L.T. & Wang, W. & Sun, Y.Y. & Feng, Y.C. & Lu, W.P. & Zhu, J.H. & Ge, Y.J., 2014. "Investigation of defrosting water retention on the surface of evaporator impacting the performance of air source heat pump during periodic frosting–defrosting cycles," Applied Energy, Elsevier, vol. 135(C), pages 98-107.
    • Handle: RePEc:eee:appene:v:135:y:2014:i:c:p:98-107
    DOI: 10.1016/j.apenergy.2014.07.028
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0306261914007090
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.apenergy.2014.07.028?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Wang, W. & Feng, Y.C. & Zhu, J.H. & Li, L.T. & Guo, Q.C. & Lu, W.P., 2013. "Performances of air source heat pump system for a kind of mal-defrost phenomenon appearing in moderate climate conditions," Applied Energy, Elsevier, vol. 112(C), pages 1138-1145.
    2. Wang, W. & Xiao, J. & Guo, Q.C. & Lu, W.P. & Feng, Y.C., 2011. "Field test investigation of the characteristics for the air source heat pump under two typical mal-defrost phenomena," Applied Energy, Elsevier, vol. 88(12), pages 4470-4480.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Song, Mengjie & Gong, Guangcai & Mao, Ning & Deng, Shiming & Wang, Zhihua, 2017. "Experimental investigation on an air source heat pump unit with a three-circuit outdoor coil for its reverse cycle defrosting termination temperature," Applied Energy, Elsevier, vol. 204(C), pages 1388-1398.
    2. Song, Mengjie & Xia, Liang & Deng, Shiming, 2016. "A modeling study on alleviating uneven defrosting for a vertical three-circuit outdoor coil in an air source heat pump unit during reverse cycle defrosting," Applied Energy, Elsevier, vol. 161(C), pages 268-278.
    3. Wang, Feng & Liang, Caihua & Zhang, Xiaosong, 2018. "Research of anti-frosting technology in refrigeration and air conditioning fields: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P1), pages 707-722.
    4. Song, Mengjie & Xia, Liang & Mao, Ning & Deng, Shiming, 2016. "An experimental study on even frosting performance of an air source heat pump unit with a multi-circuit outdoor coil," Applied Energy, Elsevier, vol. 164(C), pages 36-44.
    5. Song, Mengjie & Deng, Shiming & Dang, Chaobin & Mao, Ning & Wang, Zhihua, 2018. "Review on improvement for air source heat pump units during frosting and defrosting," Applied Energy, Elsevier, vol. 211(C), pages 1150-1170.
    6. Wang, Yubo & Quan, Zhenhua & Zhao, Yaohua & Wang, Lincheng & Bai, Ze & Shi, Junzhang, 2024. "Energy and exergy analysis of a novel dual-source heat pump system with integrated phase change energy storage," Renewable Energy, Elsevier, vol. 222(C).
    7. Song, Mengjie & Deng, Shiming & Mao, Ning & Ye, Xianming, 2016. "An experimental study on defrosting performance for an air source heat pump unit with a horizontally installed multi-circuit outdoor coil," Applied Energy, Elsevier, vol. 165(C), pages 371-382.
    8. Xiuli Liu & Hua Chen & Xiaolin Wang & Gholamreza Kefayati, 2020. "Study on Surface Condensate Water Removal and Heat Transfer Performance of a Minichannel Heat Exchanger," Energies, MDPI, vol. 13(5), pages 1-17, March.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Chen, Siliang & Chen, Kang & Zhu, Xu & Jin, Xinqiao & Du, Zhimin, 2022. "Deep learning-based image recognition method for on-demand defrosting control to save energy in commercial energy systems," Applied Energy, Elsevier, vol. 324(C).
    2. Song, Mengjie & Deng, Shiming & Dang, Chaobin & Mao, Ning & Wang, Zhihua, 2018. "Review on improvement for air source heat pump units during frosting and defrosting," Applied Energy, Elsevier, vol. 211(C), pages 1150-1170.
    3. Kim, Min-Hwan & Lee, Kwan-Soo, 2015. "Determination method of defrosting start-time based on temperature measurements," Applied Energy, Elsevier, vol. 146(C), pages 263-269.
    4. Carroll, P. & Chesser, M. & Lyons, P., 2020. "Air Source Heat Pumps field studies: A systematic literature review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 134(C).
    5. Wang, Wei & Zhang, Shiqiang & Li, Zhaoyang & Sun, Yuying & Deng, Shiming & Wu, Xu, 2020. "Determination of the optimal defrosting initiating time point for an ASHP unit based on the minimum loss coefficient in the nominal output heating energy," Energy, Elsevier, vol. 191(C).
    6. Li, Zhaoyang & Wang, Wei & Sun, Yuying & Wang, Shiquan & Deng, Shiming & Lin, Yao, 2021. "Applying image recognition to frost built-up detection in air source heat pumps," Energy, Elsevier, vol. 233(C).
    7. Zhengrong Li & Yongheng Du & Yuqin Pan & Fan Zhang & Zhaofeng Meng & Yanan Zhang, 2022. "Experimental Performance Study of Solar-Assisted Enhanced Vapor Injection Air-Source Heat Pump System," Energies, MDPI, vol. 15(20), pages 1-15, October.
    8. Amer, Mohammed & Wang, Chi-Chuan, 2017. "Review of defrosting methods," Renewable and Sustainable Energy Reviews, Elsevier, vol. 73(C), pages 53-74.
    9. Li, Yongcai & Li, Wuyan & Liu, Zongsheng & Lu, Jun & Zeng, Liyue & Yang, Lulu & Xie, Ling, 2017. "Theoretical and numerical study on performance of the air-source heat pump system in Tibet," Renewable Energy, Elsevier, vol. 114(PB), pages 489-501.
    10. Hiroki Ikeda & Yasushi Ooi & Takashi Nakaya, 2021. "Underfloor Heating Using Room Air Conditioners with Air Source Heat Pump in a Foundation Insulation House," Energies, MDPI, vol. 14(21), pages 1-29, October.
    11. O'Hegarty, R. & Kinnane, O. & Lennon, D. & Colclough, S., 2022. "Air-to-water heat pumps: Review and analysis of the performance gap between in-use and product rated performance," Renewable and Sustainable Energy Reviews, Elsevier, vol. 155(C).
    12. Felten, Björn & Weber, Christoph, 2018. "The value(s) of flexible heat pumps – Assessment of technical and economic conditions," Applied Energy, Elsevier, vol. 228(C), pages 1292-1319.
    13. Leandra Vanbaelinghem & Andrea Costantino & Florian Grassauer & Nathan Pelletier, 2024. "Alternative Heating, Ventilation, and Air Conditioning (HVAC) System Considerations for Reducing Energy Use and Emissions in Egg Industries in Temperate and Continental Climates: A Systematic Review o," Sustainability, MDPI, vol. 16(12), pages 1-35, June.
    14. Yang, Seung-Hwan & Rhee, Joong Yong, 2013. "Utilization and performance evaluation of a surplus air heat pump system for greenhouse cooling and heating," Applied Energy, Elsevier, vol. 105(C), pages 244-251.
    15. Rafati Nasr, Mohammad & Fauchoux, Melanie & Besant, Robert W. & Simonson, Carey J., 2014. "A review of frosting in air-to-air energy exchangers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 30(C), pages 538-554.
    16. Zhao, Han & Liu, Zihan & Sang, Yufeng & Chang, Junzhi & Zheng, Xuejing & Jurasz, Jakub & Zheng, Wandong, 2024. "A visual defrosting control method for air source heat pump system based on machine vision," Energy, Elsevier, vol. 302(C).
    17. Song, Mengjie & Xia, Liang & Mao, Ning & Deng, Shiming, 2016. "An experimental study on even frosting performance of an air source heat pump unit with a multi-circuit outdoor coil," Applied Energy, Elsevier, vol. 164(C), pages 36-44.
    18. Ni, Long & Dong, Jiankai & Yao, Yang & Shen, Chao & Qv, Dehu & Zhang, Xuedan, 2015. "A review of heat pump systems for heating and cooling of buildings in China in the last decade," Renewable Energy, Elsevier, vol. 84(C), pages 30-45.
    19. Tomas Kropas & Giedrė Streckienė & Juozas Bielskus, 2021. "Experimental Investigation of Frost Formation Influence on an Air Source Heat Pump Evaporator," Energies, MDPI, vol. 14(18), pages 1-15, September.
    20. Wang, W. & Feng, Y.C. & Zhu, J.H. & Li, L.T. & Guo, Q.C. & Lu, W.P., 2013. "Performances of air source heat pump system for a kind of mal-defrost phenomenon appearing in moderate climate conditions," Applied Energy, Elsevier, vol. 112(C), pages 1138-1145.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:appene:v:135:y:2014:i:c:p:98-107. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.