Nanofluid heat transfer augmentation and exergy loss inside a pipe equipped with innovative turbulators

Exergy variations for forced convection of nanofluid through a pipe equipped with twisted tape turbulators have been simulated via Finite volume method. Roles of height ratio, pitch ratio and Reynolds number on variation of nanofluid hydrothermal treatment, second law efficiency (ηII) and exergy loss (Xd) were presented. Suitable formulas for (Xd) and (ηII) are provided. Results reveal that exergy drop reduces with enhance of Reynolds number and height ratio. Second law performance rises with augment of height ratio while it reduces with augment of pitch ratio.