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Modélisation CFD d'un écoulement d'air très élevé dans un sèche-linge résidentiel pour étudier la chute de pression et l'écoulement à travers la voie d'écoulement de l'air.

CFD modeling of very high air flow in a residential clothes dryer to investigate pressure loss and flow through the air flow path.

Numéro : 2468

Auteurs : HALL C., KARMAN S., BOUDREAUX P., PATEL V., ELLIS D., GLUESENKAMP K., GEHL A.

Résumé

Thermoelectric heated residential clothes dryers have previously been shown to be capable of up to 85% greater energy efficiency than typical electric resistance heated clothes dryers. However, added air flow resistance through the thermoelectric heat sinks can significantly reduce the overall efficiency of the dryer. Minimizing air flow resistance in the existing dryer air flow path may offset some of the added resistance from the thermoelectric heat sinks. A three-dimensional computational fluid dynamics model was developed of a conventional clothes dryer to investigate pressure loss and flow through the dryer. The model was validated to laboratory data and used to predict dryer performance at very high air flow rates (up to 0.142 m3/s (300 cubic feet per minute)). The model was used to examine modified geometric configurations to reduce pressure loss throughout the system and increase efficiency of the clothes dryer. Modeling results showed that enlarging the rear duct by 20% could reduce pressure loss through the dryer by up to 20%.

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Pages : 10 p.

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Détails

Titre original : CFD modeling of very high air flow in a residential clothes dryer to investigate pressure loss and flow through the air flow path.
Identifiant de la fiche : 30030742
Langues : Anglais
Sujet : Technologie
Source : 2022 Purdue Conferences. 19^th International Refrigeration and Air-Conditioning Conference at Purdue.
Date d'édition : 2022

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Indexation

Thèmes : Autres systèmes de production de froid (dessiccation, thermoélectricité, thermoacoustique...);
Evaporateurs, condenseurs et autres échangeurs thermiques;
Thermodynamique et changement d’état
Mots-clés : Puits de chaleur; CFD; Modélisation; Séchoir; Géometrie; Optimisation; Application domestique