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Heat Transfer

Heat transfer lectures by Professor Josua Meyer (2014). Topics covered in the lectures include: transient or unsteady heat conduction, convection heat transfer, external and internal forced convection, heat exchangers, thermal radiation including atmospheric and solar radiation. The lectures are based on the textbooks of White (8th ed) and Cengel and Ghajar (4th ed) and were presented as part of a heat transfer class to the fourth year students of the Department of Mechanical and Aeronautical Engineering, University of Pretoria.

This lecture is the first lecture on internal forced convection. It gives an overview of the main difference between external and internal forced convection. It discusses the use of average velocities and temperatures, hydraulic diameter and what happens with the friction factors and heat transfer in developing and developed flow.

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