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Natural Convection Heat Transfer and Fluid Flow in Enclosures with Varying Aspect Ratios (CFD)

Sang, Wong Yean (2015) Natural Convection Heat Transfer and Fluid Flow in Enclosures with Varying Aspect Ratios (CFD). IRC, Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Buoyancy driven natural convection in enclosures has wide range of engineering applications in heat transfer processes. The study of fluid flow and heat transfer characteristics in enclosures has significant importance towards thermal management and optimal design of the system. Limited studies are available on the numerical simulation of 3-Dimensional enclosures with varying aspect ratios (H/L). Heat transfer characteristics has been investigated in 3D enclosure with hot and cold surface by Computational Fluid Dynamics (CFD) simulating at low (0.125 ≤ AR ≤ 50) and high (51 ≤ AR ≤ 150) aspect ratios. CFD simulations have been performed with different fluids (fluid 1, fluid 2 and fluid 3) at temperature range of 20K ≤ ΔT ≤ 100K and Prandtl number range of 0.01 ≤ Pr ≤ 4200. The predicted profiles for velocities and heat transfer coefficients are presented. Correlations for Nusselt number based on predicted findings have been developed to study heat transfer characteristics.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Separation Process
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 02 Nov 2015 15:54
Last Modified: 25 Jan 2017 09:36
URI: http://utpedia.utp.edu.my/id/eprint/15778

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