Modélisation CFD des performances thermiques d’un mur Trombe.

International audience<div style=""&gt<font face="arial, helvetica"&gt<span style="font-size: 13px;"&gtRésumé – Cette étude concerne l’analyse des performances thermiques d’un mur Trombe couplé à un local. Elle est réalisée via un modèle numérique CFD 2D permettant de simuler le comportement thermique du mur Trombe en régime permanent. Le modèle CFD prend en compte les transferts par conduction, convection et rayonnement ainsi que la turbulence de l’écoulement d’air. Après une validation des simulations à partir de résultats issus de la littérature, une étude paramétrique de l’influence de la largeur des ouïes et de l’épaisseur de la lame d’air sur l’efficacité thermique du système est réalisée.</span&gt</font&gt</div&gt<div style=""&gt<br&gt</div&gt<div style=""&gt<font face="arial, helvetica"&gt<span style="font-size: 13px;"&gtAbstract – This study concerns the analysis of the thermal performance of a Trombe wall coupled to a room. It is performed using a 2D CFD model to simulate the steady-state thermal behavior of the Trombe wall. The CFD model considers conduction, convection and radiation transfers as well as airflow turbulence. After validation of the simulations using results from the literature, a parametric study concerning the influence of the vents size and air gap depth on the thermal efficiency of the system is carried out.</span&gt</font&gt</div&gt<div style=""&gt<br&gt</div&g

Etude expérimentale des performances thermiques d’un mur Trombe.

International audienceCette étude concerne l’analyse du comportement thermique d’un mur Trombe couplé à un local à partir des données expérimentales. Le dispositif expérimental mis en oeuvre en laboratoire est décrit dans un premier temps. Les premiers résultats obtenus, à savoir les variations temporelles de la température et des flux au niveau des différents composants du système mur Trombe, sont ensuite présentés. Ces données expérimentales sont utilisées pour estimer l’efficacité énergétique du mur Trombe

CFD analysis of the thermal performance of Trombe wall

International audience<font face="arial, helvetica"&gt<span style="font-size: 13px;"&gtTrombe walls are widely used in building thanks to their capacity to achieve energy efficiency using renewable power. This study aims to analyse the thermal performance of a Trombe wall coupled to a room. It is performed via a 2D CFD model to simulate the steady-state thermal behaviour of the Trombe wall. The CFD model takes into account conduction, convection and radiation transfers as well as airflow turbulence. After validation of the simulations using results from the literature, a parametric study with respect to the influence of the vents size and air gap depth on the system’s thermal efficiency is carried out. It was concluded that better thermal performance is achieved when the vents size is equal to 0.15 m, which corresponds to one tenth of the wall height but a wider air channel leads to a decrease of the solar wall’s thermal efficiency.</span&gt</font&g

CFD analysis of the thermal performance of Trombe wall

International audience<font face="arial, helvetica"&gt<span style="font-size: 13px;"&gtTrombe walls are widely used in building thanks to their capacity to achieve energy efficiency using renewable power. This study aims to analyse the thermal performance of a Trombe wall coupled to a room. It is performed via a 2D CFD model to simulate the steady-state thermal behaviour of the Trombe wall. The CFD model takes into account conduction, convection and radiation transfers as well as airflow turbulence. After validation of the simulations using results from the literature, a parametric study with respect to the influence of the vents size and air gap depth on the system’s thermal efficiency is carried out. It was concluded that better thermal performance is achieved when the vents size is equal to 0.15 m, which corresponds to one tenth of the wall height but a wider air channel leads to a decrease of the solar wall’s thermal efficiency.</span&gt</font&g

CFD analysis of the thermal performance of Trombe wall

International audience<font face="arial, helvetica"&gt<span style="font-size: 13px;"&gtTrombe walls are widely used in building thanks to their capacity to achieve energy efficiency using renewable power. This study aims to analyse the thermal performance of a Trombe wall coupled to a room. It is performed via a 2D CFD model to simulate the steady-state thermal behaviour of the Trombe wall. The CFD model takes into account conduction, convection and radiation transfers as well as airflow turbulence. After validation of the simulations using results from the literature, a parametric study with respect to the influence of the vents size and air gap depth on the system’s thermal efficiency is carried out. It was concluded that better thermal performance is achieved when the vents size is equal to 0.15 m, which corresponds to one tenth of the wall height but a wider air channel leads to a decrease of the solar wall’s thermal efficiency.</span&gt</font&g