Imanurezeki Mohamad, Nurul Adzura Ismail, Ahmad Anas Yusof
The building cooling system is served as important function providing a comfortable environment for building occupants. Indeed, the building cooling system is a demand-oriented with sustainable building management strategy which is desirable for balancing between both building usage and energy demand. At present, the management of the cooling energy building demand often raised concerns on potential reduction of building Operational and Maintenance (O&M) cost. The integration between O&M cost involved was used as a benchmark strategy for building energy-saving potential with regard to high system performance. To address these issues, this study focused at the medium size office building Universiti Teknologi Malaysia (UTM). The present work integrates centralised building cooling system, Heating, Ventilating and Air Conditioning (HVAC) equipment and cooling energy demand loads. The cooling energy data is based on site-measured data collected and engineering-cost analysis. Engineering-cost analysis results demonstrated that the operation and maintenance cost of cooling tower system increased by 3 % per year due to the annual inflation rate. It is considered that method in this study can be applied to provide the guideline for building energy consumption and strategic management cost.