Experimental Investigation of Double Pass Solar Air Heater using different type of Porous Media. International Journal of Current Engineering and Technology, [S. l.], v. 3, n. 5, p. 2006–2009, 2013. Disponível em: https://ijcet.evegenis.org/index.php/ijcet/article/view/377. Acesso em: 27 oct. 2026.