PASSIVE SOLAR THERMAL SYSTEMS FOR OUTDOOR SWIMMING POOLS: THERMAL MODELLING, EXPERIMENTAL INVESTIGATION AND ENERGY EFFICIENCY. PROBLEMS AND SOLUTIONS OF SCIENTIFIC AND INNOVATIVE RESEARCH, [S. l.], v. 2, n. 10, p. 60–66, 2025. Disponível em: https://universalconference.us/index.php/pssir/article/view/5797. Acesso em: 17 jun. 2026.