TiO(2)nanofluid for oxygen mass transfer intensification in pulsed plate column
Year: 2021
Journal: Chem. Eng. Commun., Volume 208, NOV 1, page 1653–1675
Authors: Shet, Amruta S.; Vidya, Shetty K.
Keywords: Artificial neural network; oxygen mass transfer coefficient; pulsed plate column; pulsing velocity; TiO(2)nanofluid
Oxygen mass transfer coefficient (k(L)a) is a key parameter in biochemical, photochemical, or other reactors. Pulsed plate column (PPC) has a potential application as a gas-liquid contactor. In the present work, TiO(2)nanofluid mediated oxygen mass transfer intensification in PPC is studied. The pulsing velocity (A x f) and nanoparticle loading in volume percent (phi) have an interacting effect on k(L)a. The effect of phi on k(L)a, showed a dual regime of an increase in k(L)a with an increase in phi up to a critical loading (phi(CL)) and decrease in k(L)a on further increase in phi. The effect of (A x f) on k(L)a showed three regimes. phi(CL)& k(L)a were found to decrease as the nanoparticle's size increased. Dimensionless correlations based on multiple regression analysis and ANN models were developed to predict the k(L)a values in PPC with TiO(2)nanofluids.
