Experimental Study on the Effect of Using Metallic Brushes on the Charging and Discharging Time of Thermal Energy Storage Unit. Journal of Engineering, [S. l.], v. 21, n. 09, p. 1–15, 2015. DOI: 10.31026/j.eng.2015.09.01. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/346.. Acesso em: 3 may. 2024.