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九州大学大学院 工学研究院 機械工学部門 熱流体物理研究室 Thermofluid Physics Laboratory
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Joule-Thomson Microcooler

Objective: To cool precision electronic equipments by microcooler

Background: Advance in technology of downsizing and high-efficiency electronic devices --> increase in heat generation density

In need of downsized cooling devices

Joule-Thomson Microcooler has simple structure and no flexible regions/parts --> Micro size

Problem: downsizing and high-efficiency technology (design and fabrication)

エチレン2.8MPa温度降下:100K 装置外観
Ethylene: 2.8MPa
Temperature drop: 100K