Comparative study of heat transfer and wetting behaviour of conventional and bioquenchants for industrial heat treatment
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Date
2008
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Abstract
An investigation was conducted to study the suitability of vegetable oils as bioquenchants for industrial heat treatment. The study involved the assessment of the severity of quenching and wetting behaviour of conventional and vegetable oil quench media. Quench severities of sunflower, coconut and palm oils were found to be greater than mineral oil. The quench severity of aqueous media is greater than oil media although their wettability is poor as indicated by their higher contact angles. A dimensionless contact angle parameter defined in this work is found to be a better parameter to compare the wetting behaviour with heat transfer. © 2007 Elsevier Ltd. All rights reserved.
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Keywords
Contact angle, Heat transfer, Mineral oils, Vegetable oils, Bioquenchants, Quench severity, Heat treatment
Citation
International Journal of Heat and Mass Transfer, 2008, 51, 46115, pp. 526-538