Comparative study of heat transfer and wetting behaviour of conventional and bioquenchants for industrial heat treatment |
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| Authors: | Peter Fernandes K. Narayan Prabhu |
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| Affiliation: | 1. Department of Mechanical Engineering, Birjand University of Technology, Birjand 97175-569, South Khorasan, Iran;2. Department of Mechanical Engineering, Roudbar Branch, Islamic Azad University, Roudbar 44615-1146, Guilan, Iran;1. Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Straße der Nationen 62, D-09111 Chemnitz, Germany;2. Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Physik, Reichenhainer Straße 70, D-09107 Chemnitz, Germany;3. Stanford Institute of Materials and Energy Science, Stanford University, Stanford, CA 94025, USA;4. Department of Pharmaceutical Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, BP 2701, Cameroon |
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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. |
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