Energy Audit of The Building Air-Conditioning System

Abstract

Energy audit is one of the effective tools to identify potential of energy conservation and help to identifyenergy waste in a facility or system. In commercial office building like the Faculty of MechanicalEngineering (FME) Academic Building, its air-conditioning system (AC) alone consumed almost 72.55% oftotal monthly FME energy consumption for both of its Split unit and Central Cooling System. The objectiveof this study is to find the energy usage and billing of the AC at FME Academic building and finally torecommend the possible methods for energy conservation related to the system. This energy audit is done byconducting system observation, acquire data and information such as maintenance record, electrical usage,room condition and analyse system performance. During data collecting and observation few cause werefound that lead to excess energy consumption for both systems that can be conserver in monetary term. Forexample, the VRV system that currently installed is expected to give saving of RM 65,900.78 annually inbuilding operational costs.