Engineering Thermodynamics

Engineering Thermodynamics Complete lecture notes

by Eng.D.L.Kumudu

   

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Thermodynamics and Energy

Heat, energy, transformations, are all ways that thermodynamics is tied into society. Have you ever touched a piece of metal and a piece of wood in the same room? You noticed that the metal felt cooler than the wood, yet are they the same temperature? That is an example of thermodynamics. When your hand touches the metal, your hand releases heat through conductivity, or the ability to conduct heat or energy.When your hand touches the metal, it releases more heat than when your hand touches the wood. Even though the metal feels cooler, they are at the same temperature

The concept of thermodynamics came into place when steam engines were becoming popular during the Industrial Revolution.Thermodynamics is the most present science in your life.

In fact, it is so present in your daily life it became common sense.

It is much more common sense than the examples given in the other answers (cars, refrigerators, coffee makers, electronic

devices, etc, those are all usual applications of thermodynamics,

but you don't understand thermodynamics by understanding them).

Engineers use principles drawn from thermodynamics and other

engineering sciences, including fluid mechanics and heat and

mass transfer, to analyze and design thing intended to meet

human needs.