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http://dx.doi.org/10.6110/KJACR.2016.28.9.373

Heat Transfer Characteristics of Spray Cooling Up to Critical Heat Flux on Thermoexcel-E Enhanced Surface  

Lee, Yohan (L&E Research Center Energy solution laboratory, LG Electronics)
Hong, Gwang-Wook (Department of Mechanical Engineering, Inha University)
Lee, Jun-Soo (Department of Mechanical Engineering, Inha University)
Jung, Dongsoo (Department of Mechanical Engineering, Inha University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.28, no.9, 2016 , pp. 373-380 More about this Journal
Abstract
Spray cooling is a technology of increasing interest for electronic cooling and other high heat flux applications. In this study, heat transfer coefficients (HTCs) and critical heat fluxes (CHFs) are measured on a smooth square flat copper heater of $9.53{\times}9.53mm$ at $36^{\circ}C$ in a pool, a smooth flat surface and Thermoexcel-E surfaces are used to see the change in HTCs and CHFs according to the surface characteristics and FC-72 is used as the working fluid. FC-72 fluid has a significant influence on heat transfer characteristics of the spray over the cooling surface. HTCs are taken from $10kW/m^2$ to critical heat flux for all surfaces. Test results with Thermoexcel-E showed that CHFs of all enhanced surface is greatly improved. It can be said that surface form affects heat transfer coefficient and critical heat flux.
Keywords
Spray cooling; Heat Transfer coefficient; Thermoexcel-E surface; Critical heat flux; Boiling heat transfer;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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