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FREE/ MIXED CONVECTION IN VERTICAL POROUS CHANNEL

Kabbashi Balow, Ali Ibrahim (2011) FREE/ MIXED CONVECTION IN VERTICAL POROUS CHANNEL. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Convective heat transfer or simply convection is the study of transport processes Effected by the flow of fluids. Convective heattransfer has grown to the status of a contemporary science because ofpeople desire to understand andpredict how a fluid flow will act as a carrier or conveyer belt for energy and matter. How ever Convective heat transfer is clearly, afield at interface betweentwo older fields: heat transfer and fluid mechanics. For this reason, the study of any convective heat transfer problem must reset ona solid understanding of basic heat transfer and fluid mechanics principles. Since this research will cover free convection and porous medium we discuss briefly about it. Fluid flow and convection heat transfer in porous media have been widely investigated experimentally and numerically for many years due to the many important applications, such as catalytic and chemical particle beds, petroleum processing, geothermal energy extraction, transpiration cooling, packed-bed regenerators, solid matrix heat exchangers, micro-thrusters and many others. Porous media can intensify fluid mixing and increase the surface area in contact with the coolant, so porous structures are an effective heat transfer augmentation technique. There have been numerous investigations with theoretical analyses and numerical simulations of convection heat. However in this project the simulation have been done and the results have been obtained and the maximum velocity of the hot air is about 0.0003m/s moreover the velocity in figure 11showed the maximum near the heated wall and in natural convection the maximum velocity is on the heated wall, therefore the velocity is very identical to the assumption of Darcy flow is valid when the fluid is not too fast ref [7] For the temperature is about 1270K and the temperature we can manipulate it by supply heat flux at high or low see the appendices 1&2 check temperature contour for different values for heat flux therefore we can conclude that the velocity obtained by simulation is satisfied as well as the temperature.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Advance Process Control
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 08 Jan 2014 08:56
Last Modified: 08 Jan 2014 08:56
URI: http://utpedia.utp.edu.my/id/eprint/10819

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