DocumentCode :
563038
Title :
Experimental evaluation of jet impingement cooling over flat surface with spent air exhaust ports on jet plate
Author :
Savanur, S.A. ; Misal, R.D. ; Chandel, Sunil
Author_Institution :
Mech. Eng. Dept., DIAT (DU), Pune, India
fYear :
2012
fDate :
30-31 March 2012
Firstpage :
276
Lastpage :
280
Abstract :
Jet impingement is an effective means of localized heating or cooling. In many engineering and industrial applications, this process is used to get high heat flux. The present work deals with the studies of heat transfer characteristics of a single round impingement jet cooling on a flat surface with spent air exhaust ports on the jet plate. The experiments were performed to study the effect of the jet-to-target spacing and jet Reynolds number. The experiments were performed for jets of 3.4, 6, 9 and 12 mm diameter and jet to target spacing of 1, 2, 4, 6, 8 and 10 for optimum value. The Reynolds number varies from 2300 to 5600. The investigations reveal the non-uniformity of local Nusselt Number for an impingement jet. The distribution of local heat transfer on flat surfaces reveal the formation of secondary peaks from the stagnation point, which help in improving the overall convective heat transfer from the surface.
Keywords :
convection; cooling; exhaust systems; heating; jets; laminar flow; plates (structures); stagnation flow; convective heat transfer; flat surfaces; heat flux; heat transfer characteristics; jet Reynolds number; jet plate; jet-to-target spacing; local Nusselt Number; localized heating; single round impingement jet cooling; size 3 mm to 12 mm; spent air exhaust ports; stagnation point; Fluid flow measurement; Heat engines; Heating; Flat Surface; Jet impingement cooling; Nusselt Number; Reynolds number;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advances in Engineering, Science and Management (ICAESM), 2012 International Conference on
Conference_Location :
Nagapattinam, Tamil Nadu
Print_ISBN :
978-1-4673-0213-5
Type :
conf
Filename :
6216273
Link To Document :
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