confOrganiser.com - Work: ROCESS OF THERMAL HEATING BY CONVECTION OVER THE FLAT PLATE

ROCESS OF THERMAL HEATING BY CONVECTION OVER THE FLAT PLATE

1. Jaroslava Budinski-Simendic, Univerzitet u Novom Sadu, Tehnološki fakultet, Srbija, Serbia
2. Jelena Pavličević, Serbia
3. Vladan Micic, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
4. Branko Pejović, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
5. Mitar Perušić, Faculty of Technology - University of East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
6. Dejan Kojić, Univerzitet za poslovni inženjering i menadžment, Tehnički fakultet, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
7. Ljiljana Tanasic, Visoka poljoprivredna škola strukovnih studija Šabac, Serbia
8. Dušan Kostić, Tehnološki fakultet u Istočnom Sarajevu::Karakaj bb, Republic of Srpska, Bosnia and Herzegovina

The heat transfer operation is extremely important in various technologies, especially in the rubber industry for crosslinking and for all the steps in the process of obtaining products from elastomeric materials. The speed at which the heat can be transferred to the rubber compound or taken away from it affects the design of the process equipment as it controls the rate of mixing, shaping and vulcanization. Turbulent heat transfer between the rubber compound and steel equipment as the mass transfer itself is very complex due to the large conversion of mechanical energy into heat. Convective heat transfer with air, fluids or steam is also present in the fabrication of elastomeric products. In this work we analysed the heat transfer for the laminar and turbulent region of the boundary layer as well as the variation of the local resistance coefficient and the coefficient of heat transfer in the parallel flow of the fluid over the flat plate. The relations are given for the determination of Reynolds and Nusselt numbers for characteristic flow fields, which will allow calculation of the heat flow. Also, a graphic representation of the average heat transfer coefficient for a flat plate in the combination of laminar and turbulent flows is given, which is of particular importance in industrial practice. Relationships in one example concerning the cooling of the heated plate by air flow natural convection in the case of different flow directions are shown

Thematic field: SIMPOZIJUM A - Nauka materije, kondenzovane materije i fizika čvrstog stanja

Date: 18.04.2019.

Contemporary Materials 2019 - Savremeni Materijali


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