A CFD based approach for determination of ammonia concentration profile and flux from poultry houses with natural ventilation

Published

2016-01-01

Una aproximación basada en CFD para determinar perfil de concentración y flujo de amoniaco en galpones avícolas con ventilación natural

Keywords:

Computational Fluid Dynamics, natural ventilation, broiler chickens, ammonia, tropical climates (en)
Dinámica de Fluidos Computacionales, Ventilación natural, Pollos de engorde Amoniaco, Climas tropicales (es)

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Authors

Jairo Alexander Osorio Saraz Universidad Nacional de Colombia
Ilda de Fátima Ferreira Tinôco Universidad Federal de Viçosa
Keller Sullivan Olivera Rocha Universidad Federal de Viçosa
Luciano Barreto Mendes International Institute of Applied Systems Analysis (IIASA)
Tomas Norton Harper Adams University

Abstract (en)
Abstract (es)

The understanding of concentration and emissions distribution of gases such as ammonia (NH3) in agricultural installations is of growing importance due to its effect on health and productivity of animals and workers. The objective of this study was to use validated Computational Fluid Dynamics (CFD) model as a tool to predict NH3 concentration distribution and mass fluxes in a non-insulated broiler chicken installation with natural ventilation, typically found in subtropical and tropical countries. Results from this study indicated that simulation with CFD can be used to predict NH3 concentration distribution and mass flux inside similar installations with incident winds from different directions of entrance at the lateral opening of the installation. The most direct application of the proposed model would be to help improving the existing buildings and also to help in the conception of new ones, and may also apply the model to help in the development of NH3 emission inventories

El entendimiento de la concentración y distribución de las emisiones de gases como el amoníaco (NH3) en instalaciones agrícolas es cada vez más importante debido a su efecto sobre la salud y la productividad de los animales y de los trabajadores. El objetivo de este estudio fue utilizar un modelo validado en Dinámica de Fluidos Computacional (CFD) como herramienta para predecir la distribución de la concentración y flujos de NH3 en una instalación de pollos de engorde sin aislamiento térmico y con ventilación natural, típicamente encontrados en países tropicales y subtropicales. Los resultados de este estudio indicaron que la simulación con CFD se puede utilizar para predecir la distribución de concentraciones y flujo de NH3 dentro de instalaciones similares con vientos incidentes con diferentes direcciones de entrada en la abertura lateral de la instalación. La aplicación más directa del modelo propuesto sería ayudar a la mejora de las instalaciones existentes y también para la concepción de nuevas, como también se puede aplicar el modelo para ayudar en el desarrollo de inventarios de emisiones de NH3.

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References

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