• Amol A.Gawali
• Dr. Milind M.Dhobe

It is necessary to find out solution for lowering the energy consumption in buildings. Heating, ventilation and air-conditioning system is the largest energy user in buildings. Large quantities of energy are spent in office buildings due to poor thermal performance and low efficiencies of HVAC (Heating Ventilation and Air Conditioning System) systems. This paper gives short analysis on worldwide energy consumption in building and various authors research methodology & techniques in form of review. To calculate cooling and heating of any building we need to go for cooling load calculations. Current HVAC system design approaches are often based on specified cooling loads derived via the use of design parameters. These designing parameters are uncertain and vary with cooling load calculation. The cooling load profile may differ from the design. This causes poor thermal efficiency, loss of electricity & higher running cost, wastage of energy, load on cooling devices and imbalance and poor cooling effect over the area. To eliminate or minimize this difficulty of designing a system, some papers are reviewed which suggest the current power consumption by HVAC. It also gives ideas about designing & modelling scenarios of HVAC systems with various optimization techniques & gives guidelines of designing of HVAC systems.

HVAC, Energy management, review on Energy consumption In HVAC, Energy losses, HVAC system analysis, HVAC system optimization, HVAC energy consumption in commercial Building

"Review on Energy Consumption & Energy Optimization Analysis in Heating Ventilation & Air Conditioning (HVAC) System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 1, page no.a87-a93, January-2022, Available :http://www.jetir.org/papers/JETIR2201011.pdf

"Review on Energy Consumption & Energy Optimization Analysis in Heating Ventilation & Air Conditioning (HVAC) System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 1, page no. ppa87-a93, January-2022, Available at : http://www.jetir.org/papers/JETIR2201011.pdf