I re-read this undergraduate thermodynamics text in preparation for the air-breathing propulsion class I'm taking in the fall. This seems to be the standard text used by students across the country and I was excited that I recalled the material so quickly. Engineering thermodynamics is the study of energy storage, transformation, and conservation in fluids (air and liquids) and fluid machinery. Applications include refrigeration, air conditioning, power generation turbines, air compressors, nozzles and combustion chambers.