Skip to Main content Skip to Navigation

Optimizing building/HVAC system in order to minimize energy consumption due to air-conditioning

Sila Filfli
Abstract : The global energy yearly consumption of commercial buildings in France varies between 300 and 380 kWh/m². This consumption refers to total energy consumption: lighting, heating, cooling, office automation, plug consumptions, hot water and auxiliaries. This work has defined a method to determine the best available technical solutions that lead to important energy savings in air-conditioned commercial buildings. Consumptions were reduced by a factor of 4 to 5 times. A typology of representative buildings was developed according to each sector. HVAC system types were matched to appropriate building types. Simplified models were used for HVAC systems and building management components. To solve the problem of carrying a large number of simulations due to the consideration of a lot of variables, fractional experimental designs were used. A new methodology was developed in the building sector in order to reduce the time of simulations. A parametric model expressing the different sectors of annual consumptions was developed. This model can be used without going back to simulations in order to estimate different types of energy consumptions. It can be used for a technical-economical optimization. The effect of insulation on cooling and heating consumptions was studied. Two principal sectors were considered: office buildings and hospitals. The first one is presented in details while the second is studied briefly. This work has permitted to establish a complete methodology for reducing energy consumption and to study the effect of each variable on the yearly total consumption.
Document type :
Complete list of metadatas
Contributor : Ecole Mines Paristech <>
Submitted on : Tuesday, February 20, 2007 - 8:00:00 AM
Last modification on : Tuesday, September 29, 2015 - 10:32:46 AM
Long-term archiving on: : Monday, October 22, 2012 - 4:55:10 PM


  • HAL Id : pastel-00002199, version 1



Sila Filfli. Optimizing building/HVAC system in order to minimize energy consumption due to air-conditioning. Engineering Sciences [physics]. École Nationale Supérieure des Mines de Paris, 2006. English. ⟨pastel-00002199⟩



Record views


Files downloads