The scope of this course includes fundamentals of energy systems, which are the subject of political and scientific interest in recent years. Students will learn the fundamental principles that are used in the analysis of energy systems. Specifically selected topics from thermodynamics, fluid mechanics and heat transfer will be subjects of this course. Particular topics include but not limited or exclusive to: conservation of mass, momentum and energy, control volumes and control surfaces, the second law of thermodynamıcs, entropy, heat engines, internal and external flows, conduction, convection and radiation heat transfer.