Fu, Ziyan, Corker, Jorge, Papathanasiou, Theodosios, Wang, Yuxuan, Zhou, Yonghui, Madyan, Omar Abo, Liao, Feiyu and Fan, Mizi (2022). Critical review on the thermal conductivity modelling of silica aerogel composites. Journal of Building Engineering, 57 ,
Abstract
As a new generation of thermal insulation materials, the effective thermal conductivity of aerogel and its composites is extremely low. The nanoporous structure of aerogels demobilises the movement of gas molecules, and the nano-skeleton system restricts solid heat transfer because of the size effect. Numerous research and modelling works have been carried out to understand and predict heat transfers. This review thoroughly discusses the existing theories and models of silica aerogel composites in gas, solid and radiative heat transfers. It investigates the correlation of the pore size distribution and solid skeleton network of the composites with the thermal conductivity. The review then assesses the advances of the development and questions remaining for further development, including 1) some unexplainable performance of existing models and 2) improvements required for gas and solid thermal conductivity models. Bridging the identified research gaps shall lead researchers to understand existing models better, develop a more accurate model based on more realistic microstructure simulation and further innovate the models for other emerging composites.
Publication DOI: | https://doi.org/10.1016/j.jobe.2022.104814 |
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Divisions: | College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Civil Engineering |
Funding Information: | The project leading to this paper has received funding from the European Union's Horizon 2020 research and innovation programme under Grant Agreement No. 869898 . |
Additional Information: | © 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license 4.0 Funding Information: The project leading to this paper has received funding from the European Union's Horizon 2020 research and innovation programme under Grant Agreement No. 869898 . |
Uncontrolled Keywords: | Aerogel composites,Heat transfer,Insulation,Modelling,Thermal conductivity,Civil and Structural Engineering,Architecture ,Building and Construction,Safety, Risk, Reliability and Quality,Mechanics of Materials |
Publication ISSN: | 2352-7102 |
Last Modified: | 06 Aug 2024 09:30 |
Date Deposited: | 14 Jul 2022 13:20 |
Full Text Link: | |
Related URLs: |
http://www.scop ... tnerID=8YFLogxK
(Scopus URL) https://www.sci ... 8270?via%3Dihub (Publisher URL) |
PURE Output Type: | Review article |
Published Date: | 2022-10-01 |
Published Online Date: | 2022-06-15 |
Accepted Date: | 2022-06-11 |
Authors: |
Fu, Ziyan
Corker, Jorge Papathanasiou, Theodosios ( ![]() Wang, Yuxuan Zhou, Yonghui Madyan, Omar Abo Liao, Feiyu Fan, Mizi |