Enhancing Heat Transfer Efficiency in a Heat Exchanger Using Green-Synthesized Copper Oxide Nanofluids Based on Ethylene Glycol–Water Mixture: Enhancing Heat Transfer Efficiency in a Heat Exchanger. Academic Journal of International University of Erbil, [S. l.], v. 3, n. 2, p. 1054–1070, 2026. DOI: 10.63841/iue3261054. Disponível em: https://ojs.cihanrtv.com/index.php/public/article/view/170.. Acesso em: 25 apr. 2026.