Lecture

Heat Transfer in Microreactors

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Description

This lecture covers heat transfer phenomena in microreactors, focusing on straight micro-channels with constant wall temperature. Topics include Nusselt number variations, mean Nusselt number correlations, heat transfer in microreactors, and the impact of channel geometry on heat transfer efficiency. The lecture also discusses the development of laminar velocity profiles, overall heat transfer coefficients, and the use of thick and thin walls in microreactors. Additionally, it explores the design of shell-and-tube micro heat exchangers, the benefits of curved channel geometries, and the thermal sensitivity analysis in microchannels.

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Energy engineering

Nuclear power: Topics in nuclear power

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A nuclear reactor is a device used to initiate and control a fission nuclear chain reaction or nuclear fusion reactions. Nuclear reactors are used at nuclear power plants for electricity generation and in nuclear marine propulsion. Heat from nuclear fission is passed to a working fluid (water or gas), which in turn runs through steam turbines. These either drive a ship's propellers or turn electrical generators' shafts. Nuclear generated steam in principle can be used for industrial process heat or for district heating.

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