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Experimental Heat Transfer
A Journal of Thermal Energy Generation, Transport, Storage, and Conversion
Volume 27, 2014 - Issue 1
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Original Articles

Enhancement of Cooling Rate for a Hot Steel Plate using Air-Atomized Spray with Surfactant-Added Water

S. S. Mohapatra Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India
,
J. M. Jha Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India
,
K. Srinath Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, India
,
S. K. Pal Indian Institute of Technology, Department of Mechanical Engineering, Kharagpur, India
&
S. Chakraborty Department of Chemical Engineering, Indian Institute of Technology, Kharagpur, IndiaCorrespondence[email protected]
Pages 72-90 | Received 26 Mar 2012, Accepted 02 Aug 2012, Published online: 27 Sep 2013
 
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Abstract

The objective of the current research deals with the experimental study of an air-atomized spray with surfactant-added water, cooling a 12-mm-thick AISI-1020 stationary steel plate at three different initial surface temperatures (400°C, 600°C, and 900°C). Furthermore, the effects of surfactant concentration and airflow rate on the cooling rate have been investigated. The surface heat flux and surface temperature show a significant improvement in cooling for all three cases of initial surface temperatures when the air-atomized spray was used with surfactant-added water.

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