The main objective of this unit is to introduce students to the fundamental thermodynamic and fluid mechanics physical laws, and develop in students the ability to apply these fundamental principles in thermal and fluid energy systems. It emphasizes understanding basic principles and applying them to practical situations using lab demonstrations. The aim is to give students the necessary skills to carry out basic design and performance analysis in the area of fluid statics, fluid motion, heat, and power system in steam and similar power plants, engines, and refrigeration systems. The thermal part will cover three thermodynamic laws and the application of thermodynamics laws in thermal analysis of engines, refrigerators/heat pumps, and power cycles. The fluid part deals with hydrostatic pressure and forces, flow along streamlines with and without friction, flow momentum and forces, similarity and modeling. This unit is prerequisite for the units, ENG311 thermal engineering 1, ENG412 thermal engineering 2 and ENG313 Fluid Mechanics, core units in mechanical and civil engineering.