Towards Low Energy and Thermal Comfort of Buildings Through Passive Cooling or Heating Strategies in Hot Arid Climates

Abstract

Due to strong urban expansion and population growth, the residential sector is the main consumer of electricity and gas, especially the arid region of Algeria. This situation produces enormous energy consumption while the application of thermal regulations was not valid for the entire construction. This article aims to use passive strategies inspired by vernacular architecture, to arrive at passive and ecological houses. Initially, this work consists of knowing the different traditional or current systems used specifically in arid and semi-arid regions. Then, the methodology followed based on a dynamic simulation of the strategies applied in an existing apartment located in the south of Algeria (case study). Afterwards, we will provide a multi-criteria and cost-benefit analysis, to validate an appropriate optimal model, based on energy savings and investment cost. In conclusion, it was observed that using the waterspout wall with night ventilation could reduce energy consumption by 50% and maintain thermal comfort.