Experimental Study on Double-Pass Solar Air Heater with and without using Phase Change Material. Journal of Engineering, [S. l.], v. 25, n. 2, p. 1–17, 2019. DOI: 10.31026/j.eng.2019.02.01. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/733. Acesso em: 1 apr. 2025.