Investigation of Entropy and Turbulence Characteristics of Water based Al₂O₃, TiO₂, and Graphene-Oxide Nanoparticles in a Triangular Rod Array

Abstract

Entropy and turbulence characteristics are crucial for assessing the thermal-hydraulic performance of a nuclear reactor. Using the Finite Volume Method, this study investigates the turbulence behaviour and variation in entropy generation in a triangular rod array with water-based Al2O3, TiO2, and Graphene-Oxide nanoparticles. We also examine the effects of different volumes of nanofluids. Under forced turbulent conditions, numerical investigations were carried out assuming a homogeneous single phase mixture. The Reynolds number is varied from 20 x 103 to 80 x 103. The results are compared with traditional correlations which exhibit a precise alignment. By observing the results, it was found that as volume fractions of the coolants increase, the entropy decreases. On the contrary, with an increase in volume concentrations, however, turbulence kinetic energy was found increased.

Meeting Name

3rd International Conference on Advances in Mechanical Engineering and Nanotechnology (2021: Mar. 18-19, Uttarakhand, India)

Department(s)

Nuclear Engineering and Radiation Science

Keywords and Phrases

Finite volume method; Nanoparticles; Triangular rod array; Turbulent kinetic energy

International Standard Serial Number (ISSN)

2214-7853

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2021 Elsevier, All rights reserved.

Publication Date

26 Jul 2021

Link to Full Text

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