Available online at www.sciencedirect.com ScienceDirect Materials Today: Proceedings 5 (2018) 16181–16189 www.materialstoday.com/proceedings 2214-7853© 2017 Elsevier Ltd. All rights reserved. Selection and/or Peer-review under responsibility of International Conference on Advanced Materials(SCICON ‘16). SCICON 2016 Mass transfer augmentation due to the presence of rotating two stage two blade flat turbine promoters in an electrolytic cell K. Ramesh Chandra a* , M. Venkateswara Rao a , G. Kavitha b , N. Chitti Babu b * a Department of Chemical Engineering, R.V.R. & J.C. College of Engineering (A), Guntur, A.P – 522019, India. b Department of Chemical Engineering, Andhra University College of Engineering (A), Visakhapatnam,A.P - 530003, India. Abstract An experimental investigation has been carried out to understand the augmentation of mass transfer coefficient in an open electrolytic cell by rotating two stage two blade flat turbine promoters.The limiting current data were measured by using diffusion controlled reduction reaction (Reduction of ferricynide ion) at the micro electrodes fixed on the electrode support. The mass transfer coefficients were obtained from the measured limiting current data and the concentrations of reducing ion. The effects of the electrolyte velocity, rotational speed of the turbine, and the diameter of the turbine, width of the turbine blade on the mass transfer coefficient were studied. Correlations were developed for mass transfer in terms of dimensionless factors, Sherwood number, Schmidt number, flow Reynolds number and rotational Reynolds number © 2017 Elsevier Ltd. All rights reserved. Selection and/or Peer-review under responsibility of International Conference on Advanced Materials(SCICON ‘16). Keywords: Augmentation; Limiting Current; Mass Transfer; Turbine; Rotational Speed. 1. Introduction In electrolytic cells, it is always the endeavour of the designer to increase the transfer rates which causes increase in productivity, reduction in equipment size, lower energy inputs and improved quality of productivity [1]. The enhancement of convective mass transfer in process equipment has been of central importance because of the necessity of material and energy savings. The initial investment, the floor space, current efficiency, energy * Corresponding author. Tel.: +91-9441536677 E-mail address: kolasani_ramesh@yahoo.co.in