Experimental and Theoretical Investigation on a Solar Chimney System for Ventilation of a Living Room

• Published in: Mathematical Modelling of Engineering Problems 2021-04, Vol.8 (2), p.259-266
• Main Authors: Belfegas, Billal, Larbi, Salah, Tayebi, Tahar
• Format: Article
• Language: English
• ISSN: 2369-0739; 2369-0747
• DOI: 10.18280/mmep.080213

The present work relates to the analysis of an energy system based on the solar chimney for passive ventilation of a living space. It consists of an experimental and theoretical study of the energy performance according to some geometrical and environmental parameters. The designed prototype was installed and followed for several days. In parallel, a numerical code was developed in FORTRAN platform to simulate the phenomena in the solar chimney and compare the theoretical results with those experimental in the transient regime. The results obtained relate to the distributions of temperature on the glazing, within the airflow and on the internal wall of the chimney. The hourly rate of air change (ACH), the air-outlet velocity and its mass flow rate have also been determined. The comparison of the results obtained in this study with those of the literature has shown a good agreement. The obtained results have shown that the incidental solar radiation plays a fundamental role in the energy performance of such systems and there is an optimum value of the ratio between the width of the chimney and the wall opening for a high rate of air renewal.