Authors of Thermodynamics Engineering are happy to present a long standing requirement of a book which will be useful to the students from first year to final year mechanical engineering course from various universities. This book covers quite wide spectrum of topics like fundamental concepts, first & second law of thermodynamics, IC engines, Systems of IC engines, Compressors & Gas turbines, Jet propulsion system, Boilers, properties of steam, Steam nozzles and Turbines, Condensers, Refrigeration and air-conditioning, Heat transfer, Fuels and combustion.