PERFORMANCE ANALYSIS OF SOLAR AIR HEATER WITH DIFFERENT ABSORBER MATERIAL. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 5, n. 2, p. 187–200, 2018. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/2323. Acesso em: 6 sep. 2025.