School of Mechanical Engineering, Malaysia
*Corresponding author: Mohd Azmi Ismail, School of Mechanical Engineering, Malaysia
Submission: October 14, 2018;Published: November 02, 2018
ISSN 2640-9690 Volume2 Issue1
Malaysia and Sri Lanka are facing energy crisis like several other developing countries. Cost of energy never going to decrease in near future, leading the focus toward optimization and efficiency of the systems. It has been recorded in past that cost of generating energy is much higher than the cost of improving efficiency up to certain limit. Energy usage indicate that more than 42% consumed by HVAC systems in 2010 comparing with total energy consumption in commercial buildings . Buildings are constructed to provide a safe and comfortable internal environment at all variation of external conditions.