Fundamentals of Engineering Thermodynamics 8th Edition

Published by Wiley
ISBN 10: 1118412931
ISBN 13: 978-1-11841-293-0

Chapter 7 - Problems: Developing Engineering Skills: 7.1

Answer

Exergy is basically the availability of work. Exergy reduces as irreversibility increases. When aircraft lands, brakes are applied where energy is lost in friction. There is also friction between aircraft's tyres and runways during landing. Irreversiblity is associated with friction. Fuel is also burned as engine is running which also a source of irreversibility. In conclusion, Exergy reduces when plan's lands and parks.

Work Step by Step

Exergy is basically the availability of work. Exergy reduces as irreversibility increases. When aircraft lands, brakes are applied where energy is lost in friction. There is also friction between aircraft's tyres and runways during landing. Irreversiblity is associated with friction. Fuel is also burned as engine is running which also a source of irreversibility. In conclusion, Exergy reduces when plan's lands and parks.
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