The Experimental Investigation of Double -Pass Solar Air Heater with V-Corrugated Plate, Phase -Change Material and Baffles Under Recycling Operation. Al-Rafidain Engineering Journal (AREJ), [S. l.], v. 28, n. 1, p. 256–271, 2023. DOI: 10.33899/rengj.2022.136090.1203. Disponível em: https://rengj.uomosul.edu.iq/index.php/rengj/article/view/30835. Acesso em: 26 jun. 2026.