Breadcrumb

 
 

Design and optimization of a silicon base micro heat exchanger

Title:

Design and optimization of a silicon base micro heat exchanger

Lonbani, Siavash Sadri (2004) Design and optimization of a silicon base micro heat exchanger. Masters thesis, Concordia University.

[img]
Preview
PDF - Accepted Version
8Mb

Abstract

Micro heat exchangers are among the recent subjects of investigations aiming to achieve high heat dissipation rates from the heat sources such as compact electronic circuits and limit peak temperature levels. This work is an investigation directed towards the design and optimization of micro heat exchangers. Based on the optimization criteria established on scaled up models a micro-heat exchanger made of non-uniform array of silicon square micro pins is designed. The high thermal conductivity of silicon and its compatibility with electronic circuits makes it an excellent candidate used for designing and fabrication on these devices. Finite element models are built and calibrated against the experimental results obtained from tests on macro scale Aluminum specimens in contact with a heat source and facing flowing air at different velocities and different base temperatures in the wind tunnel. Further, the finite element models are extended to the micro level on various geometries and configurations of micro heat exchangers. It was found that square shape pins exhibit the higher heat transfer capability through the device in compare with circular pins in the case of similar hydraulic diameter. In addition for equal contact area between the solid and the fluid, smaller hydraulic diameter for the pins caused larger amount of heat transformation through the solid fluid border. Other important observation is that by using 45{493} attack angle with respect to the fluid direction, higher amount of heat is released by the pins. Also the amount of transferred thermal energy is increasing by diminishing the longitudinal distance between the pins in the direction of the flow.

Divisions:Concordia University > Faculty of Engineering and Computer Science > Mechanical and Industrial Engineering
Item Type:Thesis (Masters)
Authors:Lonbani, Siavash Sadri
Pagination:xvii, 170 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:M.A. Sc.
Program:Mechanical and Industrial Engineering
Date:2004
Thesis Supervisor(s):Stiharu, Ion and Kahrizi, Mojtaba
ID Code:8290
Deposited By:Concordia University Libraries
Deposited On:18 Aug 2011 14:21
Last Modified:18 Aug 2011 15:38
Related URLs:
All items in Spectrum are protected by copyright, with all rights reserved. The use of items is governed by Spectrum's terms of access.

Repository Staff Only: item control page

Document Downloads

More statistics for this item...

Concordia University - Footer