The course will cover the requirements for energy efficiency within the design process, stages in the design process, energy efficient design brief, sketch design, specific design. The specific factors that affect energy efficiency within heating systems, ventilation systems, air-conditioning systems, refrigeration systems, motors and lighting will be discussed. Special care will be given in Low energy cooling techniques like night-time cooling, ground water cooling, hollow core slab, evaporative and desiccant cooling, free cooling as well as h eat recovery from contaminated air streams using run around coils, thermal wheels, re-generative heat exchangers.