• Yajjala sirisha
• P.srinivas kishore

Abstract Enhancing the efficiency of traditional solar air heaters with reduced thermal performance can be accomplished by integrating small perforated baffles on the airflow side of the heat-absorbing plate. This article presents the results of a comparative investigation that utilizes both analytical and numerical approaches. The research involves showcasing a performance chart for the air heater with ducts containing baffles, which is produced through a mathematical model. Additionally, the influence of various environmental factors on the expected thermal efficiency is studied. The utilization of ANSYS Fluent facilitates Computational Fluid Dynamics (CFD) simulations. Several mass flow rates ranging from 0.02 to 0.10 are employed to evaluate heat gain and thermal efficiency. The flow pattern within the system is characterized as laminar. The obtained outcomes reveal a significant agreement between the conclusions drawn from the analytical and numerical methodologies.

"Analysis of solar air heater with half perforated baffles", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 8, page no.g414-g424, August-2023, Available :http://www.jetir.org/papers/JETIR2308645.pdf

"Analysis of solar air heater with half perforated baffles", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 8, page no. ppg414-g424, August-2023, Available at : http://www.jetir.org/papers/JETIR2308645.pdf