Simulación numérica de una Chimenea Solar Vertical con Tres Canales de Flujo de Aire
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Solar chimney configuration consisting of three air flow channels divided by two metallic plates, placed in the center of the chimney between two glass covers, leading to symmetric air flow, is proposed as an alternative for the design of natural ventilation systems for buildings in tropical and subtropical climatic zones. The solar chimney dimensions are 1.5 m height, 0.60 m width, and a gap between air channels is of 0.20m. Energy, Mass and Momentum Equations were numerically simulated through K-Omega Turbulent Model in the ANSYS Fluent software to evaluate the temperatures and flow proposed configuration. The temperatures profiles calculated for a typical and hot day, reveal that the configuration is more efficient than the single channel chimney, achieving mass flow values near al 0.45 kg/s. This solar chimney configuration can be used with better results than the traditional design as an alternative for natural ventilation systems in residential buildings without a significant increase in the cost of the residence.