Practice-Problems_2011 - UNIVERSITY OF NEW SOUTH WALES...

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Unformatted text preview: UNIVERSITY OF NEW SOUTH WALES SCHOOL OF CHEMICAL ENGINEERING CHEMICAL ENGINEERING FUNDAMENTALS 3 CEIC3000 PRACTICE PROBLEMS 1. During the course of an experimental research, a tall cylindrical tank which was initially empty has to be filled with liquid at a constant inflow of m lit/sec. Unfortunately, the flat tank bottom has been corroded and has a small hole of area A , and therefore sustains a leak (at a rate, r lit/sec) as filling continued. If the cross-sectional area of the tank is A and the time-varying height is h(t), then: a. Obtain the dynamic relationship describing the tank height if the leak rate obeys Torricellis law, r =A {2gh(t)},where g is acceleration due to gravity. Hint: This is easily done by considering the unsteady-state mass balance on the tank. b. This research is being done by a smart student who knows that even in the presence of such a real life problem, it is still possible to obtain a final steady-state liquid height in the tank. Suppose you life problem, it is still possible to obtain a final steady-state liquid height in the tank....
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This note was uploaded on 05/30/2011 for the course CEIC 3000 taught by Professor Adesina during the Three '11 term at University of New South Wales.

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Practice-Problems_2011 - UNIVERSITY OF NEW SOUTH WALES...

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