Thermal Performance Analysis of a Twisted-Tube Absorber in a Parabolic Trough Solar Collector under Variable Flow ConditionsMamlakat Bazarova, Lolakhon Raximova, Elyor Ikromov, Dilnoza Aslanova and Bobirjon HamroyevE3S Web Conf., 661 (2025) 04007DOI: https://doi.org/10.1051/e3sconf/202566104007