Computational modelling and simulation of Trombe walls as a passive ventilation system under an oceanic climate

Abstract

As buildings' energy consumption has become of outstanding importance, much more attention is being paid to passive solar design strategies such as Trombe walls (TWs) in view of their implementation. Nowadays, such a device is considered a promising alternative to ensure a transition to renewable energies. Thereby, a three-dimensional Computational Fluid Dynamics (3D CFD) numerical transient analysis of a passive Trombe wall integrated in a test room has been implemented to investigate dynamic and thermal fields prevailing there. Two configurations have been considered herein. The first configuration includes an uninsulated TW. In the second configuration, we propose an insulated TW. From the simulation results, the proposed idea would offer improved thermal performance where the conductive and convective flows are more pronounced and the temperature can be maintained within 16–21°C. Likewise, the outside temperature of the insulated TW can reach around 25°C.

Keywords

• Trombe wall
• Natural ventilation technology
• CFD transient analysis
• insulated TW
• thermal comfort conditions