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Thermal modelling and performance assessment of a circular greenhouse with solar chimney assisted ventilation and fog Cooling CIGR Journal
Misra, Debajit; Ghosh, Sudip.
This paper presents a conceptualized model of a solar chimney-assisted naturally ventilated circular greenhouse applicable for hot and arid regions. Instead of conventional rectangular shape, a circular shape is chosen which makes the greenhouse independent of wind direction and orientation with regards to the wind-induced ventilation. Pressurised fogging system is considered as the mode of distributed evaporative cooling. A circular twin-wall solar chimney is centrally mounted which is suitably sized to provide buoyancy-induced natural ventilation. The solar induced ventilation is sufficient, giving 0.6-0.75 air change per minute (ACM). The analysis revealed that during the peak ambient temperatures, the greenhouse inside temperature could be lowered by 4...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mechanical Engineering; Thermal Engineering; Agricultural Engineering greenhouse solar chimney ventilation evaporative cooling fogging cycle.
Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4741
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