Data/hora: 02/06/2024 19:15:06

Provedor de dados: 	111	
País: 	China	
Título: 	Thermal modelling and performance assessment of a circular greenhouse with solar chimney assisted ventilation and fog Cooling	
Autores: 	Misra, Debajit; Ghosh, Sudip.	
Data: 	2019-01-25	
Ano: 	2019	
Palavras-chave: 	Mechanical Engineering; Thermal Engineering; Agricultural Engineering greenhouse  solar chimney  ventilation  evaporative cooling  fogging cycle.	
Resumo: 	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 to 6 0C below the ambient employing an optimized fogging cycle with spray time/interval period of 1.5 min/2 min. 	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.cigrjournal.org/index.php/Ejounral/article/view/4741	
Editor: 	International Commission of Agricultural and Biosystems Engineering	
Relação: 	http://www.cigrjournal.org/index.php/Ejounral/article/view/4741/2886

http://www.cigrjournal.org/index.php/Ejounral/article/downloadSuppFile/4741/2068

http://www.cigrjournal.org/index.php/Ejounral/article/downloadSuppFile/4741/2069	
Formato: 	application/pdf	
Fonte: 	Agricultural Engineering International: CIGR Journal; Vol 20, No 4 (2018): CIGR Journal; 108-118

1682-1130	
Fonte: 	Copyright (c) 2019 Agricultural Engineering International: CIGR Journal