IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v196y2020ics0360544220302498.html
   My bibliography  Save this article

Multi-scale simulation study on the hygrothermal behavior of closed-cell thermal insulation

Author

Listed:
  • Cai, Shanshan
  • Guo, Haijin
  • Zhang, Boxiong
  • Xu, Guowen
  • Li, Kun
  • Xia, Lizhi

Abstract

Closed-cell thermal insulation is one typical type of thermal insulation applied in the engineering field. However, it is observed that moisture may gradually accumulate in the insulation and highly decrease the system thermal behavior. The hygrothermal behavior depends on the mesoscopic structure and moisture distribution of the closed-cell materials. In order to investigate the impact of mesoscopic structure on the hygrothermal behavior of closed-cell insulation, a multi-scale simulation study is reported in this work. An improved random reconstruction method is first proposed to describe the structure of closed-cell insulation, and then a multi-scale thermal model is proposed to study the impact of mesoscopic structure at both mesoscopic and macroscopic scales. The trend of the results derived from the proposed multi-scale model is consistent with the experimental results, and the relevant error is lower than 10% when the degree of saturation is low. Based on the proposed models, it is found that the mesoscopic structures have significant impacts on the hygrothermal behavior of closed-cell thermal insulation at multiple scales. Both the porosity related parameters and other structure parameters are considered and discussed in detail, with sensitivity analysis provided at the end.

Suggested Citation

  • Cai, Shanshan & Guo, Haijin & Zhang, Boxiong & Xu, Guowen & Li, Kun & Xia, Lizhi, 2020. "Multi-scale simulation study on the hygrothermal behavior of closed-cell thermal insulation," Energy, Elsevier, vol. 196(C).
    • Handle: RePEc:eee:energy:v:196:y:2020:i:c:s0360544220302498
    DOI: 10.1016/j.energy.2020.117142
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544220302498
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2020.117142?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. Berardi, Umberto, 2019. "The impact of aging and environmental conditions on the effective thermal conductivity of several foam materials," Energy, Elsevier, vol. 182(C), pages 777-794.
    Full references (including those not matched with items on IDEAS)

    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. Alexander V. Fedyukhin & Konstantin V. Strogonov & Olga V. Soloveva & Sergei A. Solovev & Irina G. Akhmetova & Umberto Berardi & Mark D. Zaitsev & Daniil V. Grigorev, 2022. "Aerogel Product Applications for High-Temperature Thermal Insulation," Energies, MDPI, vol. 15(20), pages 1-15, October.
    2. Ahmad Taki & Anastasiya Zakharanka, 2023. "The Effect of Degradation on Cold Climate Building Energy Performance: A Comparison with Hot Climate Buildings," Sustainability, MDPI, vol. 15(8), pages 1-38, April.
    3. Yuri Vankov & Elvira Bazukova & Dmitry Emelyanov & Alexander Fedyukhin & Olga Afanaseva & Irina Akhmetova & Umberto Berardi, 2022. "Experimental Assessment of the Thermal Conductivity of Basalt Fibres at High Temperatures," Energies, MDPI, vol. 15(8), pages 1-11, April.
    4. Yurou Tong & Hui Yang & Li Bao & Baoxia Guo & Yanzhuo Shi & Congcong Wang, 2022. "Analysis of Thermal Insulation Thickness for a Container House in the Yanqing Zone of the Beijing 2022 Olympic and Paralympic Winter Games," IJERPH, MDPI, vol. 19(24), pages 1-17, December.
    5. Guo, Haijin & Cai, Shanshan & Li, Kun & Liu, Zhongming & Xia, Lizhi & Xiong, Jiazhuang, 2020. "Simultaneous test and visual identification of heat and moisture transport in several types of thermal insulation," Energy, Elsevier, vol. 197(C).
    6. Sara Dias & António Tadeu & Amílcar Ramalho & Michael Brett & Filipe Pedro, 2022. "Thermal and Mechanical Characterisation of Sandwich Core Materials for Climatic Chamber Shells Subjected to High Temperatures," Energies, MDPI, vol. 15(6), pages 1-18, March.

    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:energy:v:196:y:2020:i:c:s0360544220302498. 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.journals.elsevier.com/energy .

    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.