Experimental Investigation of Effect of Different Tube Geometries on Heat Transfer in Solar Pond . International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 7, n. 8, p. 54–58, 2020. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/4712. Acesso em: 6 sep. 2025.