The Influence of Air Humidity on Convective Cooling Conditions of Electronic Devices
| Autor: | Piotr Gamorski, M. Kałuża, R. Olbrycht, M. Kopeć |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Convection Natural convection Materials science 020208 electrical & electronic engineering Airflow Humidity 02 engineering and technology Heat transfer coefficient Mechanics Heat sink 01 natural sciences Heat flux Control and Systems Engineering 0103 physical sciences Heat transfer 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Physics::Atmospheric and Oceanic Physics |
| Zdroj: | IEEE Transactions on Industrial Electronics. 65:9717-9727 |
| ISSN: | 1557-9948 0278-0046 |
| Popis: | The aim of this paper is to demonstrate the impact of ambient air humidity on the efficiency of heat sink operation. It was observed that increased air humidity enabled higher power dissipation in a transistor used as a test device, without increasing its junction temperature. The presented simulation results are showing a correlation between air humidity and an estimated heat flux value. The paper also contains a mathematical analysis of humidity impact on the convective heat transfer coefficient. The natural convection phenomena are visualized in different infrared spectral ranges. A multispectral approach revealed that this convective air flow is best viewed in the MWIR spectral range. |
| Databáze: | OpenAIRE |
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