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Experimental Heat Transfer
A Journal of Thermal Energy Generation, Transport, Storage, and Conversion
Volume 36, 2023 - Issue 7
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Research Article

Investigation of spray cooling in an inclined nozzle-plate configuration with varying coolant temperature

Prashant KumarIndustrial-Scale Heat Transfer Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India
,
ParasIndustrial-Scale Heat Transfer Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India
,
Suparna BhattacharyyaIndustrial-Scale Heat Transfer Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India
&
Sudipto ChakrabortyIndustrial-Scale Heat Transfer Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, IndiaCorrespondence[email protected]
Pages 1060-1077 | Published online: 20 Jun 2022
 
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ABSTRACT

The spray cooling is investigated for a high-temperature steel plate using varying temperature coolant for different nozzle-plate orientations. Before experimentation with very-high mass-flux spray, droplet-train impact assessment indicates liquid film breakup intensification down the inclined plane. The heat transfer analysis suggests a significant cooling performance change with an inclination change at high-temperature coolant. For 50°C coolant usage in horizontal-case, cooling rate, average surface heat flux, critical heat flux, and average heat transfer coefficient are 161°C/s, 2.20 MW/m2, 2.62 MW/m2, and 3.28 kW/m2K, respectively. The 40°C coolant has a low-performance factor, while 50°C has high cooling performance.

Disclosure statement

No potential conflict of interest was reported by the author(s).

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