期刊
ALEXANDRIA ENGINEERING JOURNAL
卷 61, 期 3, 页码 2330-2347出版社
ELSEVIER
DOI: 10.1016/j.aej.2021.06.083
关键词
Super-critical water; Nanoparticles; Corrugated tube; Cooling process; Nusselt
资金
- National Key R&D Program of China [2020YFA0714400]
This paper numerically investigates the use of an optimized rectangular corrugated tube for cooling in a super-critical water reactor (SCWR), considering the effects of Al2O3, CuO, Fe3O4, and TiO2 nanoparticles on heat transfer. The study found that a corrugated tube filled with spherical alumina-SCW showed the best cooling performance.
In this paper, an optimized rectangular corrugated tube is used for the super-critical water reactor (SCWR) cooling, numerically. Al2O3, CuO, Fe3O4 and TiO2 nanoparticles in different shapes (spherical, brick, platelet and cylindrical) are considered as additives to SCW for cooling purposes, and it is tried to introduce the most suitable cases from the maximum heat transfer view point. Piecewise temperature-dependent properties are considered for the SCW and different correlations such as Brinkman and Pak equations were examined for nanofluid properties. The governing equation are solved based on control volume method (CVM) software, where the SCW properties are introduced to it by a user defined function (UDF). As the main outcome, Pak and Cho correlation had the best fitted curves with other presented functions. Also, the corrugated tube filled by spherical alumina-SCW had the best performance for SCWR cooling. (C) 2021 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Alexandria University.
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