PERFORMANCE ANALYSIS OF HELICAL COIL AND INNOVATIVE TUBES HEAT EXCHANGER WITH PHASE CHANGE MATERIALS: NUMERICAL AND EXPERIMENTAL STUDY. Spectrum Journal of Innovation, Reforms and Development, [S. l.], v. 42, p. 15–27, 2025. Disponível em: https://sjird.journalspark.org/index.php/sjird/article/view/1281. Acesso em: 13 may. 2026.