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.

Natural Ventilation and Indoor Air Quality in Domestic School Building: CFD Simulation and Improvement Strategies

“…On the other hand, the air velocity is decreased and evenly distributed inside the room, which is shown in Figure 5(a). In addition to the temperature distribution, the temperature is also distributed unevenly due to the uneven airflow where these regions experience a similar climate as the outdoor [23,26]. Figure 6 illustrates the static pressure distribution in the classroom.…”

Passive Solar Systems for the Promotion of Thermal Comfort in African Countries: A Review

“…The natural ventilation of residential premises is addressed in DTR C3-31, which also considers the thermal regulation of residential buildings. General principles governing the design of natural ventilation installations and calculation methods are also introduced [72,119].…”