IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v255y2019ics0306261919315387.html
   My bibliography  Save this article

Modeling and simulation of a falling film evaporator for a water vapor heat pump system

Author

Listed:
  • Hu, Bin
  • Yan, Hongzhi
  • Wang, R.Z.

Abstract

With the advantages of excellent heat transfer performance and less refrigerant charge, falling film evaporator has been widely used in seawater desalination and other industries. However, due to the practical problems of liquid level control and dry patches interactions, the structure design of falling film evaporator should be optimized for refrigeration applications. To resolve those problems, a simulation model for water-to-water falling film evaporator used in a water vapor heat pump system was conducted in this paper. Through the finite element method, the temperature distribution along the working tubes and the heat exchanger has been obtained. The distribution of heat transfer coefficient along the tube is also investigated to find out the best liquid level control solutions. For an available falling film evaporator with 4 pass working tubes under boiling temperature of 80 °C and spraying mass of 0.4 kg⋅s−1, it is suggested that 2 pass working tubes should be in falling film region in order to achieve the largest heating capacity. Most important of all, it is proposed that there is an optimal boundary line between full liquid and falling film region. It may provide some suggestions for future design of falling film evaporators.

Suggested Citation

  • Hu, Bin & Yan, Hongzhi & Wang, R.Z., 2019. "Modeling and simulation of a falling film evaporator for a water vapor heat pump system," Applied Energy, Elsevier, vol. 255(C).
    • Handle: RePEc:eee:appene:v:255:y:2019:i:c:s0306261919315387
    DOI: 10.1016/j.apenergy.2019.113851
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0306261919315387
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.apenergy.2019.113851?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.

    Citations

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


    Cited by:

    1. Chao, Jingwei & Xu, Jiaxing & Yan, Taisen & Xiang, Shizhao & Bai, Zhaoyuan & Wang, Ruzhu & Li, Tingxian, 2023. "Performance analysis of sorption thermal battery for high-density cold energy storage enabled by novel tube-free evaporator," Energy, Elsevier, vol. 273(C).

    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:255:y:2019:i:c:s0306261919315387. 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.

    We have no bibliographic references for this item. You can help adding them by using 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.