Mixing Ventilation in a Full Scale Model ...
Type de document :
Communication dans un congrès avec actes
Titre :
Mixing Ventilation in a Full Scale Model Room Using a Multi-Orifice Nozzle
Auteur(s) :
Meslem, Amina [Auteur]
Laboratoire de Génie Civil et Génie Mécanique [LGCGM]
Bragança, Pierre [Auteur]
Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]
Labihi, Abdelouhab [Auteur]
Laboratoire de Génie Civil et Génie Mécanique [LGCGM]
Byrne, Paul [Auteur]
Washington University in Saint Louis [WUSTL]
Laboratoire de Génie Civil et Génie Mécanique [LGCGM]
Bragança, Pierre [Auteur]

Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]
Labihi, Abdelouhab [Auteur]
Laboratoire de Génie Civil et Génie Mécanique [LGCGM]
Byrne, Paul [Auteur]
Washington University in Saint Louis [WUSTL]
Titre de la manifestation scientifique :
19th International Days on Thermal Science and Energy, JITH 2022
Ville :
Tangier
Pays :
Maroc
Date de début de la manifestation scientifique :
2022-11-15
Titre de la revue :
Lecture Notes in Mechanical Engineering
Éditeur :
Springer Nature Switzerland
Lieu de publication :
Cham
Date de publication :
2024-12-01
Mot(s)-clé(s) en anglais :
Mixing ventilation
Lobed diffuser
Multi-orifice diffuser
Jet
Thermal comfort
Lobed diffuser
Multi-orifice diffuser
Jet
Thermal comfort
Discipline(s) HAL :
Sciences de l'ingénieur [physics]
Résumé en anglais : [en]
A commercial multi-orifice diffuser (OD) is compared under the same experimental conditions to a previously validated innovative lobed diffuser (LD). The OD head is a cylindro-spherical surface pierced with 20 orifices ...
Lire la suite >A commercial multi-orifice diffuser (OD) is compared under the same experimental conditions to a previously validated innovative lobed diffuser (LD). The OD head is a cylindro-spherical surface pierced with 20 orifices arranged in three rows leading to efficient jet diffusion. The jet analysis reveals that the flow from the closest two orifice-rows to the ceiling attach to it by Coanda effect whereas the orifice jets from the lower orifice-row are directed towards the occupied zone. Thermal comfort analysis reveals less satisfactory conditions for OD than for LD. In the former case, higher velocities in the occupied zone are responsible of a slightly cold sensation. The recorded pressure loss is higher in OD than in LD, whereas no significant difference was observed in terms of sound pressure level in the occupied zone.Lire moins >
Lire la suite >A commercial multi-orifice diffuser (OD) is compared under the same experimental conditions to a previously validated innovative lobed diffuser (LD). The OD head is a cylindro-spherical surface pierced with 20 orifices arranged in three rows leading to efficient jet diffusion. The jet analysis reveals that the flow from the closest two orifice-rows to the ceiling attach to it by Coanda effect whereas the orifice jets from the lower orifice-row are directed towards the occupied zone. Thermal comfort analysis reveals less satisfactory conditions for OD than for LD. In the former case, higher velocities in the occupied zone are responsible of a slightly cold sensation. The recorded pressure loss is higher in OD than in LD, whereas no significant difference was observed in terms of sound pressure level in the occupied zone.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Source :