TARRAD, Ali H. 3D Numerical Modeling to Evaluate the Thermal Performance of Single and Double U-tube Ground-coupled Heat Pump. HighTech and Innovation Journal, [S. l.], v. 3, n. 2, p. 115–129, 2022. DOI: 10.28991/HIJ-2022-03-02-01. Disponível em: https://hightechjournal.org/index.php/HIJ/article/view/217. Acesso em: 20 sep. 2025.