Publications scientifiques
Ambroise Youmbi Diesse
Denis Ntamack
SSRN Electronic Journal
The construction sector, which consumes about 69% of produced global energy, inevitably requires close examination. This alarming rate underlies the importance and challenge of this study, especially given that 66% of this energy is derived from biomass, whose ecological impact is unquestionable. The study conducted on residential buildings, seeks to determine alternatives to constituent materials of building shells, in order to minimize energy consumption during a building’s lifespan. The proposed methodological framework is based on a chosen pilot building type, in each given climatic zone; and the establishment of a function whose values are the final energy consumption, determined from the modeling of internal temperatures using CoDyBa, the variables being the various constituent materials of the building shell. The application of various data suggests that to minimise energy consumption in buildings, stone masonry blocks are more suitable in humid equatorial and tropical zones, while burnt terracotta bricks provide more convincing results in the Sudano-Sahelian and dry tropical zones. In addition it was found that five of the six climate zones studied, the consumption of annual energy per square meter of residential buildings constructed of local materials, with the exception of wood, can be expressed as a function of the density of the material used, in a polynomial of second degree.
