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Numerical and Experimental Study of the Natural Convection in a Tall Closed Cavity

Pérez Valenzuela, Jesús Benito / Piña Ortiz, Armando / Hinojosa Palafox, Jesús Fernando / Cabanillas López, Rafael E.

Abstract One of the heat transfer mechanisms in the cavity of the hollow concrete block is the natural convection. The cavity formed by concrete blocks placed in walls, has a geometric ratio of 20:1 for common blocks of 0.1 m width. The thermal gradients applied are representatives of the boundary conditions in a wall exposed to weather conditions in a desert climate. Experimental and numerical convective heat transfer coefficients are presented and compared. The numerical flow and temperature pattern, obtained with CFD software Fluent 6.3 are discussed.

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Numerical and Experimental Study of the Natural Convection in a Tall Closed Cavity

Pérez Valenzuela, Jesús Benito / Piña Ortiz, Armando / Hinojosa Palafox, Jesús Fernando / Cabanillas López, Rafael E.

Abstract One of the heat transfer mechanisms in the cavity of the hollow concrete block is the natural convection. The cavity formed by concrete blocks placed in walls, has a geometric ratio of 20:1 for common blocks of 0.1 m width. The thermal gradients applied are representatives of the boundary conditions in a wall exposed to weather conditions in a desert climate. Experimental and numerical convective heat transfer coefficients are presented and compared. The numerical flow and temperature pattern, obtained with CFD software Fluent 6.3 are discussed.

Numerical and Experimental Study of the Natural Convection in a Tall Closed Cavity

Pérez Valenzuela, Jesús Benito / Piña Ortiz, Armando / Hinojosa Palafox, Jesús Fernando / Cabanillas López, Rafael E.

Abstract One of the heat transfer mechanisms in the cavity of the hollow concrete block is the natural convection. The cavity formed by concrete blocks placed in walls, has a geometric ratio of 20:1 for common blocks of 0.1 m width. The thermal gradients applied are representatives of the boundary conditions in a wall exposed to weather conditions in a desert climate. Experimental and numerical convective heat transfer coefficients are presented and compared. The numerical flow and temperature pattern, obtained with CFD software Fluent 6.3 are discussed.

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Titel:

Numerical and Experimental Study of the Natural Convection in a Tall Closed Cavity

Beteiligte:

Pérez Valenzuela, Jesús Benito (Autor:in) / Piña Ortiz, Armando (Autor:in) / Hinojosa Palafox, Jesús Fernando (Autor:in) / Cabanillas López, Rafael E. (Autor:in)

Erschienen in:

Sustainability in Energy and Buildings ; 83-90

Smart Innovation, Systems and Technologies ; 7

Erscheinungsdatum:

01.01.2011

Format / Umfang:

8 pages

ISBN:

978-3-642-17386-8 , 978-3-642-17387-5

ISSN:

2190-3018 , 2190-3026

DOI:

https://doi.org/10.1007/978-3-642-17387-5_9

Medientyp:

Aufsatz/Kapitel (Buch)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

Heat Flux , Nusselt Number , Natural Convection , Rayleigh Number , Average Nusselt Number Engineering , Renewable and Green Energy , Sustainable Development , Civil Engineering , Operating Procedures, Materials Treatment , Environmental Monitoring/Analysis , Energy Efficiency (incl. Buildings)

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