Improving Performance Driven Air Ventilation due to Solar Chimney An Investigation of Various Room Layouts to Achieve Cooling in Hot Semi-Arid Climate
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Abstract
Solar Chimneys attached to walls with a certain volume of space behave as a ventilation tool and increase the comfortable conditions of the adjacent rooms. The rate of airflow increases with the increased internal air buoyancy force inside the Solar Chimney. The studies done so far evaluated the configuration of Solar Chimneys but ignored the impact of the layout of the room including sizes of openings, their placement in walls, etc. on the working of Solar Chimney to improve ventilation rate. In this study, the above-mentioned phenomenon is studied with the fenestration in the room. This study seeks to investigate the effect of sizes and placement of windows rather than the dimensions of a room on the performance of a Solar Chimney. The model of a single-story room of volume 1000 cubic feet is analyzed employing a dynamic method of calculation using computer simulations. The tool used is the CFD-based computational method ANSYS FLUENT to enhance natural ventilation through window size and location modification and to predict the significant flow pattern in the space connected to the solar chimney. Room size (e.g. length, width, height etc.) is noted to impact very little the airflow of inlet. The results showed the best optimization of the solar chimney by achieving a rate of airflow of 0.25 m/s as per ASHRAE Standard 55 specifications.
Article Details
How to Cite
Waseem, U., Rashid, M., & Awan, U. (2024). Improving Performance Driven Air Ventilation due to Solar Chimney. Technical Journal, 29(03), 18-24. Retrieved from https://tj.uettaxila.edu.pk/index.php/technical-journal/article/view/2182
Section
ENVIRONMENTAL ENGINEERING
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