Introducción: Los invernaderos de mediana y baja tecnología utilizan la ventilación natural como método de control de la temperatura y la humedad. Keywords: numerical models+ Navier-Stokes equations+ ANSYS Fluent+ simulation. Originality: There are few studies that model humidity behavior with CFD and the use of hydrophanes in Mexico.Ĭonclusions: The CFD model allowed visualizing the distribution of temperature and air humidity inside the greenhouse. Limitations of the study: Numerical modeling using CFD is inadequate to model the temporality of the variables.
Results: The CFD model satisfactorily described the temperature and humidity distribution of the greenhouse, with an error of 0.11 to 3.43 ☌ for temperature, and 0.44 to 10.80 % for humidity. The ANSYS Workbench program was used for the 3D CFD modeling. Temperature and humidity measurements were performed from March 7 to 25, 2014.
Methodology: The experiment was carried out in a greenhouse equipped with hydrophanes and grown with bell pepper. Objective: To develop a computational fluid dynamics (CFD) model of a naturally ventilated zenithal greenhouse equipped with hydrophanes to understand the spatial and temporal distribution of temperature and humidity inside the greenhouse. It is necessary to know the behavior of temperature and humidity, since both factors influence the development of crops and, therefore, their yield. However, at certain times of the year, this is insufficient to extract excess heat inside the greenhouse, so devices such as hydrophanes (humidifiers) have been implemented to reduce the temperature.
Introduction: Medium and low technology greenhouses use natural ventilation as a method of temperature and humidity control.
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