Experimental And Analytical Study On Two Phase Impingement Cooling With And Without Electric Field
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Author | : Xin Feng |
Publisher | : |
Total Pages | : |
Release | : 2007 |
Genre | : Electronic dissertations |
ISBN | : |
Download Experimental and Analytical Study on Two-phase Impingement Cooling with and Without Electric Field Book in PDF, Epub and Kindle
Among the thermal management solutions for power electronics, two-phase jet or spray impingement cooling are two promising candidates. In this study, electrohydrodynamic atomization (EHDA) method is used to generate spray and jet from the same capillary. This approach enables us to compare the heat transfer coefficient and critical heat flux (CHF) in consistent conditions. Two nondimensional parameters are first developed to lay out the various EHDA modes of ethanol. The experimental results show that the EHDA cooling could enhance the heat transfer coefficient in most conditions, while it could not benefit CHF because the electric repulsive force causes a wide spray angle and less impinging mass flux on the surface. Single and multi micro jet impingement cooling (MJIC) are investigated. Based on the experimental observation and analytical works, a semi-theoretical CHF correlation is proposed based on force and energy balance. The experimental data of water and ethanol are predicted very well by the new model. It also shows the potential to explain the unique feature on the CHF curves of saturated HFE7000 and subcooled ethanol. By using multi MJIC, heat transfer coefficient and CHF might be improved, which mainly depend on fluids and testing conditions.
Author | : Robert Scott Downing |
Publisher | : |
Total Pages | : 864 |
Release | : 1999 |
Genre | : Electronic apparatus and appliances |
ISBN | : |
Download Analytical and Experimental Study of Single and Two-phase Cooling in Miniature Straight and Helical Channels Book in PDF, Epub and Kindle
Author | : |
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Total Pages | : 702 |
Release | : 1995 |
Genre | : Aeronautics |
ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, Epub and Kindle
Author | : Nuri Kayansayan |
Publisher | : |
Total Pages | : 292 |
Release | : 1978 |
Genre | : Aircraft gas-turbines |
ISBN | : |
Download An Experimental Study of Two Dimensional Impingement Cooling Book in PDF, Epub and Kindle
Author | : Rolf-Dieter Von Reth |
Publisher | : |
Total Pages | : 197 |
Release | : 1971 |
Genre | : |
ISBN | : |
Download An Experimental and Analytical Investigation of One-dimensional Two-phase Flow Transpiration Cooling Through Porous Metals Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 1388 |
Release | : 1971 |
Genre | : Government publications |
ISBN | : |
Download Monthly Catalog of United States Government Publications Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 1148 |
Release | : 1974 |
Genre | : Nuclear energy |
ISBN | : |
Download Nuclear Science Abstracts Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 484 |
Release | : 1994-02 |
Genre | : Power resources |
ISBN | : |
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Author | : |
Publisher | : |
Total Pages | : 616 |
Release | : 1966 |
Genre | : Mechanics, Applied |
ISBN | : |
Download Applied Mechanics Reviews Book in PDF, Epub and Kindle
Author | : United States. Superintendent of Documents |
Publisher | : |
Total Pages | : 1408 |
Release | : 1976 |
Genre | : United States |
ISBN | : |
Download Monthly Catalog of United States Government Publications, Cumulative Index Book in PDF, Epub and Kindle