Experimental Study of Vapor Chamber with Temperature Uniformity

• Main Authors: Ruei-Bin Huang, 黃瑞彬
• Other Authors: 康尚文
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/99707796484754266171

碩士 === 淡江大學 === 機械與機電工程學系碩士班 === 99 === In this paper, experimental method is conducted to study vapor chamber temperature uniformity and its heating rate. Firstly, a steady-state test with a single heat source of 200 watts and with a water cooling set is applied to copper heat spreader, vapor chamber heat spreader and vapor chamber heat spreader with multi-well respectively. Secondly, vapor chamber heat spreader with multi-well and aluminum heat spreader with multi-well are tested under natural convection condition. Applying dual and six heat sources respectively, temperature uniformity and heating rate are studied when the heat spreaders are heated to 90℃. Experimental results shown that vapor chamber heat spreader has the better temperature uniformity due to a lower diffusing thermal resistance, followed by vapor chamber heat spreader with multi-well and copper heat spreader. Vapor chamber heat spreader with multi-well has the better temperature uniformity both in six sources and dual sources mode. Additionally, aluminum heat spreader with multi-well shows the higher heating rate due to a lower heat capacity. The potential applications for the vapor chamber heat spreaders are seen in areas where good temperature uniformity are required with high heating rate such as Polymerase Chain Reaction, (PCR).