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Energy Sources, Part A: Recovery, Utilization, and Environmental Effects Volume 41, 2019 - Issue 20
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Articles

Numerical analysis of chimney diameter effect on the fluid flow and the heat transfer characteristics within the solar tower

Abdallah BouabidiLaboratory of Electro-Mechanic Systems (LASEM), National Engineering School of Sfax (ENIS), University of Sfax (US), Sfax, TunisiaCorrespondence[email protected]
,
Haytham NasraouiLaboratory of Electro-Mechanic Systems (LASEM), National Engineering School of Sfax (ENIS), University of Sfax (US), Sfax, Tunisia
,
Ahmed AyadiLaboratory of Electro-Mechanic Systems (LASEM), National Engineering School of Sfax (ENIS), University of Sfax (US), Sfax, Tunisia
,
Zied DrissLaboratory of Electro-Mechanic Systems (LASEM), National Engineering School of Sfax (ENIS), University of Sfax (US), Sfax, Tunisia
&
Mohamed Salah AbidLaboratory of Electro-Mechanic Systems (LASEM), National Engineering School of Sfax (ENIS), University of Sfax (US), Sfax, Tunisia
Pages 2494-2506 | Received 28 Jul 2018, Accepted 22 Nov 2018, Published online: 01 Feb 2019
 
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ABSTRACT

Solar chimney is nowadays an important source of renewable energy, especially in the hot region of the world. In this paper, the solar chimney is investigated based on the ambient conditions of Tunisia. An experimental setup is developed to study the solar chimney under the Tunisia weather conditions. Numerous simulations are performed to study the chimney diameter effect. The airflow characteristics are analyzed for the different chimney diameters. The depression zone in the chimney inlet increases with the increase of the chimney diameter. Consequently, the velocity value increases. The comparison between the numerical and the experimental results shows a good agreement.

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