TY - JOUR
TI - Analytical study of exergetic efficiency of a solar air heater with C-shape roughness element
AU - Petchimuthu Sureshkumar
AU - Rajendran Sathiya Moorthy
JN - Thermal Science
PY - 2025
VL - 29
IS - 2
SP - 943
EP - 954
PT - Article
AB - This study analytically evaluates the exergetic efficiency of solar air heaters incorporating C-shaped rib roughened absorber plates. Compared to flat plate designs, the proposed geometry significantly enhances energy performance. Optimal roughness parameters for maximizing exergy efficiency are identified, providing design guidelines for improved solar air heater systems. The maximum value of exergy efficiency of the solar air heater, with C-shaped ribs was obtained as 5.9%.