Investigation of the behavior of a heating system coupled to parabolic trough solar collector systemAbdellah Mellaikhafi, Amine Tilioua, Mohamed Hajjaj, Abella Bouaaddi and Choukri MessaoudiE3S Web Conf., 336 (2022) 00009DOI: https://doi.org/10.1051/e3sconf/202233600009