(58a) Development of a Model for Mass Transfer Using Square Plate as Turbulence Promoter in Circular Tube

DEVELOPMENT OF A MODEL FOR MASS TRANSFER USING SQUARE PLATE AS TURBULENCE PROMOTER IN CIRCULAR TUBE

Prof.V.Sujatha*, Dr. V. Nageswara Rao*, D.S.Seetha Rama Raju*, Dr.M.Gangadhar* *

*Department of Chemical Engineering, Andhra University College of Engineering (A),

Andhra University, Visakhapatnam-530 003, Andhra Pradesh, INDIA

**Department of Chemical Engineering, G.M.R. Institute of Technology, Rajam-532127,

Andhra Pradesh, INDIA

ABSTRACT

Results are presented from experimental investigations of mass transfer in a 50mm I.D.copper tube inserted with various sizes of square plates. A similarity law approach was attempted to interpret the mass transfer results and correlate them in terms of Colburn factor J_D and Reynolds number Re. The effect of geometric parameters such as size of square plate (S_s), thickness of square plate (S_w) and spacing between square plates (h) in conduit on mass transfer coefficient are studied. The present results are compared with previously published results and a generalized correlation in terms of J_D and Re is developed which is applicable for different types of square plates. The following correlation is developed between J_D and Re

J_D = 195.66 Re^-0.9014 (f₁)^0.6325 (f₂)^0.1799 (f₃)^-0.3484

KEYWORDS: Mass transfer, Square Plate, turbulence promoter, bluff body