年間 8 号発行
ISSN 印刷: 1065-5131
ISSN オンライン: 1563-5074
Indexed in
EXPERIMENTAL INVESTIGATION OF HEAT TRANSFER CHARACTERISTICS IN WATER SHOWER COOLING OF STEEL PLATE
要約
Heat transfer characteristics of shower cooling on a hot flat steel plate were investigated using the transient temperature measurement technique. Two shower cooling configurations adapted to cool the flat stationary steel surface of 4 mm thickness were directly compared for various factors such as initial plate temperature, water flow rates, average and local impingement density variation, and shower tip-to-plate space. The dimensionless initial temperature difference (ΔT*i) of the plate ranged from 6.67 to 16.67. The local and average impingement densities were measured by means of a simple mechanical patternator. A transient temperature measurement technique was applied with the help of K-type thermocouples embedded at the bottom surface of the plate. The observation revealed that optimum shower hole arrangement and design of the showerhead could achieve a higher cooling rate from a steel surface at higher temperature. For given water flow rates, local impingement density distribution decreases with increase in shower tip-to-plate distance. The mass flux profiles obtained for two different showers show quite different trends.
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Nayak Santosh Kumar, Mishra Purna Chandra, Thermal characteristics of air-water spray impingement cooling of hot metallic surface under controlled parametric conditions, Journal of Thermal Science, 25, 3, 2016. Crossref
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Nayak Santosh Kumar, Mishra Purna Chandra, Parashar Sujay Kumar Singh, Influence of spray characteristics on heat flux in dual phase spray impingement cooling of hot surface, Alexandria Engineering Journal, 55, 3, 2016. Crossref
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Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Active and Passive Techniques: Their Applications, in Introduction to Enhanced Heat Transfer, 2020. Crossref
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Padhy Sudhansu Mohan, Mishra Purna Chandra, Mishra Ruby, Kambli Achintya, Ultra-Fast Cooling of Flat Metal Pate in a Modified Runout Table, in Advances in Fluid and Thermal Engineering, 2019. Crossref