Volume : I, Issue : IV, September - 2012

Effect Of Flow Rate On The Cooling Of Electrically Heated Hot Surface During Jet Impingement

Chitranjan Agarwal, J. K. Maherchandani

Abstract :

The transient surface cooling of a hot stainless steel surface is done with the round water jet impingement cooling. The stainless steel surface of 3 mm thickness is electrically heated to obtain the initial temperature of 800 ?C. Water flow rate is varied to maintain the jet Reynolds number in a range of Re= 5000–24000 and nozzle exit to surface spacing has been kept constant at z/d=4. It has been observed that for same temperature drop surface cooling rate is higher with the jet Reynolds number of 24000, particularly for higher range of surface temperature. However, for lower surface temperature range surface cooling rate remains more or less invariable.  

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Article: Download PDF   DOI : 10.36106/ijsr  

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Chitranjan Agarwal, J. K. Maherchandani Effect Of Flow Rate On The Cooling Of Electrically Heated Hot Surface During Jet Impingement

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