Study of a Miniature Acoustic Electric Cooling System

碩士 === 國立臺北科技大學 === 能源與冷凍空調工程系碩士班 === 96 === The technique using thermoacoustic effect to move heat from one reservoir to another reservoir for cooling need have gradually emphasized a novel approach to thermal management in the electric devices. This is because of simple structure, efficiency, envi...

Full description

Bibliographic Details
Main Authors: Ding-Jyun Hong, 洪鼎鈞
Other Authors: 黃博全
Format: Others
Language:zh-TW
Published: 2008
Online Access:http://ndltd.ncl.edu.tw/handle/5bs7k7
id ndltd-TW-096TIT05703070
record_format oai_dc
spelling ndltd-TW-096TIT057030702019-07-31T03:42:42Z http://ndltd.ncl.edu.tw/handle/5bs7k7 Study of a Miniature Acoustic Electric Cooling System 迷你級聲波電子冷卻系統之研究 Ding-Jyun Hong 洪鼎鈞 碩士 國立臺北科技大學 能源與冷凍空調工程系碩士班 96 The technique using thermoacoustic effect to move heat from one reservoir to another reservoir for cooling need have gradually emphasized a novel approach to thermal management in the electric devices. This is because of simple structure, efficiency, environmental safety, and high heat transfer rate. A miniature acoustic cooler without water-cooling heat exchanger is such a device case, which utilizes piezoelectric driver to create sound wave and have a mini-scale size. The purpose of this study is to develop a miniature acoustic cooler for electronic cooling by implementation. Then a numerically and experimentally study is performed to explored the mechanism of related thermoacoustic operation and its characteristics of electronic cooling. In addition, the effects of various design parameters (e.g., input power of piezoelectric driver, gas-filling pressure, working fluid, and stack geometry) on the temperature difference exists on both end sides of the stack, and on cooling of electronic component are analyzed. The research results show that the phenomenon of thermoacoustic effect exists on the porous stack, i.e., there is a temperature gradient along the stack. The maximum temperature difference existing on the whole stack increases with increasing input power of piezoelectric driver, and gas-filling pressure, and increases with decreasing Prandtl number of the gas. The changes in the position and length of porous stack have smaller on the temperature distribution along the stack. Furthermore, it was found that the better the thermoacoustic effect that the acoustic cooler has, the better the cooling capacity which reduces the maximum temperature appearing in the interior of electronic component and prolongs its life in use. The results of this study may be used as a reference for the goal to design a high-performance commercialized acoustic cooler or to perform an extensive application based on the present technique in the future. 黃博全 2008 學位論文 ; thesis 101 zh-TW
collection NDLTD
language zh-TW
format Others
sources NDLTD
description 碩士 === 國立臺北科技大學 === 能源與冷凍空調工程系碩士班 === 96 === The technique using thermoacoustic effect to move heat from one reservoir to another reservoir for cooling need have gradually emphasized a novel approach to thermal management in the electric devices. This is because of simple structure, efficiency, environmental safety, and high heat transfer rate. A miniature acoustic cooler without water-cooling heat exchanger is such a device case, which utilizes piezoelectric driver to create sound wave and have a mini-scale size. The purpose of this study is to develop a miniature acoustic cooler for electronic cooling by implementation. Then a numerically and experimentally study is performed to explored the mechanism of related thermoacoustic operation and its characteristics of electronic cooling. In addition, the effects of various design parameters (e.g., input power of piezoelectric driver, gas-filling pressure, working fluid, and stack geometry) on the temperature difference exists on both end sides of the stack, and on cooling of electronic component are analyzed. The research results show that the phenomenon of thermoacoustic effect exists on the porous stack, i.e., there is a temperature gradient along the stack. The maximum temperature difference existing on the whole stack increases with increasing input power of piezoelectric driver, and gas-filling pressure, and increases with decreasing Prandtl number of the gas. The changes in the position and length of porous stack have smaller on the temperature distribution along the stack. Furthermore, it was found that the better the thermoacoustic effect that the acoustic cooler has, the better the cooling capacity which reduces the maximum temperature appearing in the interior of electronic component and prolongs its life in use. The results of this study may be used as a reference for the goal to design a high-performance commercialized acoustic cooler or to perform an extensive application based on the present technique in the future.
author2 黃博全
author_facet 黃博全
Ding-Jyun Hong
洪鼎鈞
author Ding-Jyun Hong
洪鼎鈞
spellingShingle Ding-Jyun Hong
洪鼎鈞
Study of a Miniature Acoustic Electric Cooling System
author_sort Ding-Jyun Hong
title Study of a Miniature Acoustic Electric Cooling System
title_short Study of a Miniature Acoustic Electric Cooling System
title_full Study of a Miniature Acoustic Electric Cooling System
title_fullStr Study of a Miniature Acoustic Electric Cooling System
title_full_unstemmed Study of a Miniature Acoustic Electric Cooling System
title_sort study of a miniature acoustic electric cooling system
publishDate 2008
url http://ndltd.ncl.edu.tw/handle/5bs7k7
work_keys_str_mv AT dingjyunhong studyofaminiatureacousticelectriccoolingsystem
AT hóngdǐngjūn studyofaminiatureacousticelectriccoolingsystem
AT dingjyunhong mínǐjíshēngbōdiànzilěngquèxìtǒngzhīyánjiū
AT hóngdǐngjūn mínǐjíshēngbōdiànzilěngquèxìtǒngzhīyánjiū
_version_ 1719231279807856640