Collect. Czech. Chem. Commun. 1998, 63, 2114-2122

Free Convective Mass Transfer at Down-Pointing Isosceles Triangles of Varying Inclination

Josef Krýsaa, Fukuya Iinob and Anthony A. Wraggc

a Department of Inorganic Technology, Prague Institute of Chemical Technology, 166 28 Prague 6, Czech Repubic
b Department of Chemical System Engineering, University of Tokyo, Japan
c School of Engineering, University of Exeter, Exeter EX4 4QF, U.K.


Free convective mass transfer at down-pointing triangular surfaces of different length and down-facing inclination was investigated using the limiting diffusion current technique of mass transfer measurement. The mass transfer rate was observed to be higher for a down-pointing triangular inclined surface over the entire range of inclination than that for an inclined rectangular surface because of the different rleading edger condition. A mass transfer correlation for down-facing inclined triangular surfaces of different length was found to be ShL = 0.774(RaL cos θ)0.25 for the RaL cos θ range from 2 . 106 to 2 . 1011.

Keywords: Free convective mass transfer; Inclined isosceles triangles; Copper deposition.