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Heat Transfer: Theory and Problems by K. Mayilsamy, R. Rudramoorthy

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1

Basic Modes of Heat Transfer

Heat is the thermal energy that flows when a temperature difference exists across a medium. Heat flows freely from high temperature sources to low temperature sinks. However, heat cannot, by itself, flow from a body at a lower temperature to one at a higher temperature. The knowledge of heat transfer is essential for the design, construction and operation of heat exchanging devices used in power generation, propulsion, metallurgical and chemical processing and refrigeration and air conditioning fields.

1.1 TEMPERATURE

Temperature is a property that measures the level of heat in a medium. Temperature standards have been continuously revised over several centuries. The International Practical Temperature Scale was ...

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