Αναζήτηση
Αποτελέσματα 1-10 από 15
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 ...
Aspects of CFD Modelling of a Fan and Pad Evaporative Cooling System in Greenhouses
(2008)
A methodology approach to simulate, by means of computational fluid dynamics (CFD) tools, a greenhouse equipped with a fan and pad evaporative cooling system is presented. Using the main aspects of evaporative cooling ...
Computational fluid dynamics applications to improve crop production systems
(2013)
Computational fluid dynamics (CFD), numerical analysis and simulation tools of fluid flow processes have emerged from the development stage and become nowadays a robust design tool. It is widely used to study various ...
The effect of vent configuration and insect screens on greenhouse microclimate
(2005)
The influence of insect screens and vent configurations on airflow and temperature patterns in an arched plastic covered greenhouse used for cultivating tomatoes was analysed using a commercial computational fluid dynamics ...
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 ...
Convective heat transfer in a heated greenhouse tunnel
(2007)
Convective transfers determine for a large part the micro-climate inside a greenhouse. These processes are very complicated because they combine free and forced convection modes, most often turbulent with very different ...