CH ENGR 101C Lecture Notes - Lecture 10: Schmidt Number, Grashof Number, Wetted Perimeter

• School: UCLA
• Department: Chemical Engineering
• Course: CH ENGR 101C
• Professor: Samanvaya Srivastava

Document Summary

Mass transfer correlation for objects places in fluid flowing with velocity !" The local sherwood number for the mass-transfer phenomenon, defined using #$%=""(/*, is. Flat plate (the momentum and concentration boundary layers start at the same point) The average sherwood number for the mass-transfer phenomenon, defined using #$%=""e/*, is. These equations may be used if the schmidt number is in the range 0. 6 < +9 < 2500. In terms of j-factor, these equations can be written as. Flat plate (the momentum and concentration boundary layers start at different points) The fluid flows over a portion of an inert surface before flowing over a surface that can also serve as a source or sink for mass transfer. Consequently, the hydrodynamic boundary layer begins to develop before the concentration boundary layer, so that the boundary condition for the concentration of transferring species a becomes. The local sherwood number for the mass-transfer phenomenon is.