Modelling of heat transfer between two rollers in dry friction |
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| Authors: | M. Hamraoui Z. Zouaoui |
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| Affiliation: | 1. Institute for Bio-Economy and Agri-Technology (IBO), Centre for Research & Technology Hellas (CERTH), 6th km Charilaou-Thermi Rd, GR 57001 Thessaloniki, Greece;2. Department of Mathematics, Government Engineering College, Hassan-573201, VTU, India;3. Department of Mathematics, Davangere University, Shivagangothri, Davangere 577 007, India;4. Department of Mathematics, Siddaganga Institute of Technology, Tumkur 572 103, India;5. Department of Mechanical Engineering, University of West Attica, 12244 Athens, Greece;6. Department of Engineering and Architecture, University of Parma, Parco Area delle Scienze 181/A, Parma, 43124 |
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| Abstract: | An analysis of heat transfer between two rollers in dry friction is presented in this paper. The contact is peripheral and is assumed to be imperfect. The heat transfer at the interface is modelled by a thermal contact resistance. The heat flux is generated by dry friction at the interface. The two rollers are cooled by convection. A numerical model has been developed to determine the steady state temperature in rollers. Taking into account the transport phenomenon due to motion, the mesh is correlated with the velocity. The accuracy of the mesh is validated by comparison with an available analytical solution developed for a single roller in rotation. The thermal behaviour is analysed with respect to: (i) the velocity, (ii) the heat convection coefficient, and (iii) the thermal contact resistance. The evolutions of the temperature and the partition coefficient of frictional heat are presented and discussed. |
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