An Approximate Method to Evaluate the Ventilation with a Natural Convection Solar Air Heater.
Gad, H., Abou-Rayan, M. (2021). An Approximate Method to Evaluate the Ventilation with a Natural Convection Solar Air Heater.. EKB Journal Management System, 18(3), 1-10. doi: 10.21608/bfemu.2021.165543
Helmy Gad; Magdi Mohamed Abou-Rayan. "An Approximate Method to Evaluate the Ventilation with a Natural Convection Solar Air Heater.". EKB Journal Management System, 18, 3, 2021, 1-10. doi: 10.21608/bfemu.2021.165543
Gad, H., Abou-Rayan, M. (2021). 'An Approximate Method to Evaluate the Ventilation with a Natural Convection Solar Air Heater.', EKB Journal Management System, 18(3), pp. 1-10. doi: 10.21608/bfemu.2021.165543
Gad, H., Abou-Rayan, M. An Approximate Method to Evaluate the Ventilation with a Natural Convection Solar Air Heater.. EKB Journal Management System, 2021; 18(3): 1-10. doi: 10.21608/bfemu.2021.165543

An Approximate Method to Evaluate the Ventilation with a Natural Convection Solar Air Heater.

MEJ- Mansoura Engineering Journal
Article 10, Volume 18, Issue 3, September 1993, Page 1-10  XML PDF (288.98 K)
Document Type: Research Studies
DOI: 10.21608/bfemu.2021.165543
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Authors
Helmy Gad email 1; Magdi Mohamed Abou-Rayan2
1Associate Professor., Mechanical Power Engineering Department., Faculty of Engineering.,El- Mansoura University., Mansoura., Egypt.
2Professor of Mechanical Power Engineering Department., Faculty of Engineering., Mansoura University., Mansoura., Egypt.
Abstract
In the present paper, a simple mathematical model has been developed for the natural convection flow in the channel-type solar air heater. This type of heaters can be used in a passive solar ventilation system by connecting it from the bottom to the space to be ventilated. The cross-sectionally averaged values of the flow velocity, temperature and pressure are used in the derivation of the governing equations. These equations are numerically solved with thermal boundary conditions similar to that of an actual system, and using appropriate dimensionless groups. A comparison between the temperature variations predicted from this model, and that recorded on a typical system is given in graphical form. 
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