Paper Conference

Proceedings of Building Simulation 2011: 12th Conference of IBPSA


Study on the impact of the building form on the energy consumption

Tiberiu Catalina, Joseph Virgone, Vlad Iordache

Abstract: The strategy to minimize the energy demand stands in several improvements of the building shape form, its thermal mass or envelope insulation. To minimize the heat losses of a building a compact shape is wanted, knowing that the most compact orthogonal building would then be a cube. This design, however, may place a large area of the floor far from the perimeter of daylighting. A compact shape is desirable to minimize the costs and the thermal energy consumption of the building; however a hyper-compact building is not desirable from architectural and daylight-use with high impact on the electrical consumption especially for office buildings. In this article thermal and lighting simulations were conducted for different building shapes, glazing areas and meteo files in order to establish their impact on the electrical and thermal consumption. The study is orientated towards office buildings, were the electric energy has the highest rate of all consumptions. It was found a difference between a cubical shape and a rectangular one on the lighting visual comfort of more than 30%. In the same time the heating demand is reduced by 6-10 % if a more compact shape, so optimal parameters must be found. This article gives guidelines for architects and engineers to better understand the problem and energy correlation curves are established.
Pages: 1726 - 1729