1. Introduction
A primary objective of environmental design in an urban context is the creation of comfortable spaces. The built
environment has a significant impact on the warming of the air. We will try to demonstrate clearly in the open streets
in the city of Biskra the impact of the change in energy balance on the warming of the air.
2. Problematic
In recent years urban climatology hitherto focused primarily on the warming of the air. [1]. Heat flux exchanged
between the soil and urban environment play an important role through their contributions to the warming of the air.
Various authors have conducted studies on these exchanges. The synthesis of bibliographic work shows that the
authors discuss the phenomenon of exchange considering the daily net radiation is divided between the latent heat
and sensible heat [2] [3 ] [4]. To limit the warming of the air in an urban environment, the mastery of energy balance
should be a priority. Cities must anticipate this new climate data.
3. objectives
Determine the change in the energy balance where the soil have covered by concrete and asphalt at an urban
environment defined by the geometry of the streets (Open Street) and its impact on the warming of the air. This
study uses a numerical approach include monitoring methodology.
The parameters