Solar PV integration for enhancing energy efficiency of industrial air compressor systems in the unstable environment of Yemen. Periodicals of Engineering and Natural Sciences, [S. l.], v. 14, n. 2, p. 147–174, 2026. DOI: 10.21533/pen.v14.i2.1992. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/1992. Acesso em: 10 jun. 2026.