23-Chem-B1 Transport Phenomena: May 2013

National Exams / EGBC — May 2013 — 04-CHEM-B1 Transport Phenomena. Three-hour open-book examination; any non-communicating calculator permitted. Five questions, of unequal weight, and all five must be answered (Q1 15, Q2 30, Q3 25, Q4 15, Q5 15 marks). The conservation equations (continuity, Navier–Stokes, shear-stress/velocity-gradient, energy and species) are supplied as Tables 1–5 appended to the paper. All five are solved below: four are pure derivations (Q1, Q2, Q3, Q5) and one (Q4) closes with a numerical mass-transfer rate.

Reference texts: R. S. Brodkey & H. C. Hershey, Transport Phenomena — A Unified Approach (McGraw-Hill) — the paper’s own reference, source of the appended Tables 1–5; R. B. Bird, W. E. Stewart & E. N. Lightfoot, Transport Phenomena (2nd ed., Wiley) — the equations of change, differential momentum/energy balances and diffusion with reaction; J. R. Welty, C. E. Wicks, R. E. Wilson & G. L. Rorrer, Fundamentals of Momentum, Heat and Mass Transfer (Wiley) — non-equimolar diffusion with a heterogeneous surface reaction; F. P. Incropera & D. P. DeWitt, Fundamentals of Heat and Mass Transfer (Wiley) — steady conduction in a spherical wall.