Experimental and Theoretical Studies of Mist Jet Impingement Cooling

Experimental data and analytical predictions for air/liquid mist jet cooling of small heat sources are presented. The mist jet was created using a coaxial jet atomizer, with a liquid jet of diameter 190 μm located on the axis of an annular air jet of diameter 2 mm. The impingement surface was a squa...

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Published in:Journal of heat transfer 1996-05, Vol.118 (2), p.343-349
Main Authors: Graham, K. M, Ramadhyani, S
Format: Article
Language:English
Subjects:
Air
Atomizers
Convection and heat transfer
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Heat flux
Heat losses
Heat transfer
Hydrodynamics
Jets
Mathematical models
Methanol
Physics
Surfaces
Turbulent flows, convection, and heat transfer
Velocity
Water
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container_title Journal of heat transfer
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creator Graham, K. M
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description Experimental data and analytical predictions for air/liquid mist jet cooling of small heat sources are presented. The mist jet was created using a coaxial jet atomizer, with a liquid jet of diameter 190 μm located on the axis of an annular air jet of diameter 2 mm. The impingement surface was a square of side 6.35 mm. Experimental data were obtained with mists of both methanol and water. Surface-averaged heat fluxes as high as 60 W/cm2 could be dissipated with the methanol/air mist while maintaining the target surface below 70°C. With the water/air mist, a heat flux of 60 W/cm2 could be dissipated with the target surface at 80°C. Major trends in the data and model predictions have been explained in terms of the underlying hydrodynamic and heat transfer phenomena.
doi_str_mv 10.1115/1.2825850
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source ASME_美国机械工程师学会过刊
subjects Air
Atomizers
Convection and heat transfer
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Heat flux
Heat losses
Heat transfer
Hydrodynamics
Jets
Mathematical models
Methanol
Physics
Surfaces
Turbulent flows, convection, and heat transfer
Velocity
Water
title Experimental and Theoretical Studies of Mist Jet Impingement Cooling
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