KAUSHAL, M.; GOEL, V. Effective Efficiency of Solar Air Heaters of Different Types of Roughness Geometries over Absorber Plate. Walailak Journal of Science and Technology (WJST), [S. l.], v. 11, n. 9, p. 729–738, 2014. Disponível em: https://wjst.wu.ac.th/index.php/wjst/article/view/756. Acesso em: 29 apr. 2024.