Computational fluid dynamics for modeling the turbulent natural convection in a double air-channel solar chimney system

I. Zavala-Guillén (), J. Xamán, G. Álvarez, J. Arce, I. Hernández-Pérez and M. Gijón-Rivera
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I. Zavala-Guillén: Centro Nacional de Investigación y Desarrollo Tecnológico CENIDET-TecNM-SEP, Prol. Av. Palmira S/N. Col. Palmira, Cuernavaca, Morelos, CP 62490, México
J. Xamán: Centro Nacional de Investigación y Desarrollo Tecnológico CENIDET-TecNM-SEP, Prol. Av. Palmira S/N. Col. Palmira, Cuernavaca, Morelos, CP 62490, México
G. Álvarez: Centro Nacional de Investigación y Desarrollo Tecnológico CENIDET-TecNM-SEP, Prol. Av. Palmira S/N. Col. Palmira, Cuernavaca, Morelos, CP 62490, México
J. Arce: Centro Nacional de Investigación y Desarrollo Tecnológico CENIDET-TecNM-SEP, Prol. Av. Palmira S/N. Col. Palmira, Cuernavaca, Morelos, CP 62490, México
I. Hernández-Pérez: Centro Nacional de Investigación y Desarrollo Tecnológico CENIDET-TecNM-SEP, Prol. Av. Palmira S/N. Col. Palmira, Cuernavaca, Morelos, CP 62490, México
M. Gijón-Rivera: Instituto Tecnológico y de Estudios Superiores de Monterrey, Mechanical Engineering Department, Vía Atlixcáyotl 2301, Reserva Territorial Atlixcáyotl Puebla, Puebla, CP 72453, México

International Journal of Modern Physics C (IJMPC), 2016, vol. 27, issue 08, 1-19

Abstract: This study reports the modeling of the turbulent natural convection in a double air-channel solar chimney (SC-DC) and its comparison with a single air-channel solar chimney (SC-C). Prediction of the mass flow and the thermal behavior of the SC-DC were obtained under three different climates of Mexico during one summer day. The climates correspond to: tropical savannah (Mérida), arid desert (Hermosillo) and temperate with warm summer (Mexico City). A code based on the Finite Volume Method was developed and a k−ω turbulence model has been used to model air turbulence in the solar chimney (SC). The code was validated against experimental data. The results indicate that during the day the SC-DC extracts about 50% more mass flow than the SC-C. When the SC-DC is located in Mérida, Hermosillo and Mexico City, the air-changes extracted along the day were 60, 63 and 52, respectively. The air temperature at the outlet of the chimney increased up to 33%, 38% and 61% with respect to the temperature it has at the inlet for Mérida, Hermosillo and Mexico City, respectively.

Keywords: Turbulent convection; natural convection; computational fluid dynamics (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (3)

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DOI: 10.1142/S0129183116500959

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