mokhnache nardjesse

Since the dawn of history, human beings have sought shelter to protect themselves from the hazards of nature. The human habitat has evolved enormously without taking into consideration the environment that surrounds it, which has led to a growing ecological footprint over the years, causing the imbalance of ecosystems and the deterioration of the environment through greenhouse gas emissions and global warming.

In his search for well-being, man builds constructions that are often qualified as energy consuming in order to satisfy his needs and whims. Indeed, the clean energy consumption is only 5% in renewable energies for 95% of fossil energy to which the world has become dependent despite the hideous repercussions that it causes on the environment by the accoisement of greenhouse gas emissions.

Greenhouse gas emissions from the real estate sector are the highest in the world compared to other sectors, which leads to a global awareness under which the whole world has undertaken a new fight: to reduce energy consumption.

 Algeria, like other countries in the world, is committed to this path, to reduce energy consumption the battle horse seems to be the residential sector which is the major consumer of energy at national level.

The city of Guelma is characterized by a semi-arid climate which causes situations of thermal discomfort inside the dwelling spaces as a result of which the inhabitants seek to improve the thermal conditions inside by the ticket of mechanical means of heating and air conditioning without worrying about energy consumption. 

As a remedy to this situation the performing envelope of the building seems to be the best solution in order to decrease the energy consumption and to raise the energy efficiency of the individual dwelling in Guelma.

To do this in this research we have conducted a study on the climate, the building, and the residential setting in Guelma in order to determine the characteristics of the building envelope conducive to energy efficiency and indoor thermal comfort.

The methodology of work retained is based on the combination of two approaches, the first and qualitative based on the construction of a theoretical base to which comes to be added an analysis of residential framework self-produced in the planned subdivision in Guelma projected on a set of dwellings in three planned subdivision.

The second approach is quantitative, it served to quantify the energy needs following a measurement campaign in-situ, an interpretation of the results of this measurement campaign, which was confronted with the TRNSYS software to perform a series of simulation in order to determine the energy needs in the dwellings studied for subsequently proposing solutions for improving the performance of the envelope. 

This research has allowed us to determine a strategy for improving the performance of the building envelope by the ticket of bioclimatic processes to improve energy efficiency, and ensure indoor thermal comfort in the individual dwelling in Guelma.