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Water and fertilizers use efficiency in grafted and non grafted tomato plants on soilless culture
(2008)
The improved rooting environment and the absence of pathogens in substrates used in soilless cultures, make the use of grafted plants unnecessary when grown hydroponically. The worldwide water shortages and the increased ...
Effect of vent opening and insect screens on greenhouse microclimate distribution
(2006)
The objective of this work was to experimentally investigate the influence of vent type (side, roof or both) and of an anti-aphid insect screen on airflow and temperature distribution of a mono span greenhouse round arch ...
Numerical modelling and experimental measurements of pesticides dispersion in a naturally ventilated greenhouse
(2008)
In the present study a commercial CFD code was used in order to investigate the dispersion of a pesticide inside an arch type tunnel greenhouse with continuous side vents. The greenhouse was cultivated with a tomato crop ...
Fan and pad evaporative cooling system for greenhouses: Evaluation of a numerical and analytical model
(2008)
An experimental greenhouse equipped with fan and pad evaporative cooling is analysed using two different models. The first one consists of a numerical simulation approach applying a commercial CFD code. The main aspects ...
Analysis of airflow through experimental rural buildings: Sensitivity to turbulence models
(2007)
Full-scale experimental data and computational fluid dynamics (CFD) methods are used to determine the accuracy of four different turbulence models [standard k-ε, k-ε renormalisation group (RNG), k-ε realisable, Reynolds ...
Numerical and experimental analysis of convective heat transfer in a heated greenhouse
(2008)
Internal convective flows, resulted from buoyancy forces, in a greenhouse tunnel were numerically and experimentally analysed and discussed. Experiments were performed in an experimental arc type tunnel greenhouse with a ...
Influence of vent design on greenhouse microclimate during dehumidification with simultaneous heating and ventilation
(2006)
The influence of greenhouse vent configuration on greenhouse microclimate and energy consumption when natural ventilation was used for greenhouse dehumidification was numerically analysed using a computational fluid dynamics ...
Solar radiation distribution in a tunnel greenhouse
(2008)
A commercial computational fluid dynamics code was used in order to investigate numerically the effect of solar radiation in an arc type tunnel greenhouse equipped with continuous side vents with a tomato crop. For the ...
Measurements and modelling of tracer gas distribution in a naturally ventilated greenhouse for pesticide dispersion determination
(2006)
In this study numerical and experimental results concerning the dispersion of a tracer gas (N2O) inside an experimental greenhouse with a tomato crop were presented and analyzed. The proposed simulation concerns a greenhouse ...
Thermal behaviour of a tunnel arc greenhouse during a solar day
(2008)
The present study investigates numerically the effect of transient solar radiation distribution during day-time in arc type tunnel greenhouse with continuous side vents and a tomato crop using a commercial CFD code. A two ...