Abstract

REYES-ROSAS, Audberto et al. Evaluation of a model for estimating the temperature and relative humidity inside greenhouses with natural ventilation. Rev. Chapingo Ser.Hortic [online]. 2012, vol.18, n.1, pp.125-140. ISSN 2007-4034.

A weather model was evaluated to estimate the hourly time temperatura and relative humidity inside of a zenithal ventilated type greenhouse, as a function of the weather outside of the greenhouse. The study was carried out during the Winter of 2008-2009, in a comercial greenhouse with tomato production, located at Tlahualilo, Durango, Mexico. The model considered the effect of natural ventilation. The results of the evaluation for two non consecutive days showed a good estimation of the air temperature, and a reasonable good estimation of relative humidity. Some adjustments are still required to improve the quality of the model.

Keywords : Energy balance; water vapor balance; solar radiation.