Performance Evaluation of an Absorber Tube of a Parabolic Trough Collector Fitted with Helical Screw Tape Inserts Using CuO/Industrial-Oil Nanofluid: A Computational Study

Improvement of the performance renewable energy harvesters is a crucial and complicated task. Among currently utilized harvesters, parabolic solar collectors are some most promising widely used apparatuses. However, researchers still facing issues regarding optimization PTC performance, including enhancement heat flux absorption by absorber tubes. proposed methods to overcome this drawback, implementation helical screw tape (HST) nanofluids has proven be effective. In present study, CFD simulation an tube with HST conducted. CuO/oil nanofluid nanoparticle volume fraction 1 3% was chosen as working fluid. The based on realistic operational condition corresponding nonuniform local concentration ratio. effects mass flow rate (Re), width pumping power transfer studied. Moreover, combine effect both parameters, evaluation criterion (PEC), dimensionless variable, calculated for all studied cases. Enhancement PEC parameter in comparison base fluid passing through plain also determined reported. According obtained results, nanofluid, can enhanced 57.3–70.8, 68.7~86.4, 83.4~105.9% fractions 1, 2, 3%, respectively.