Download PDF by J R Backhurst, J H Harker, J.F. Richardson: Chemical engineering. Solutions to the problems in chemical

By J R Backhurst, J H Harker, J.F. Richardson

This quantity within the Coulson and Richardson sequence in chemical engineering comprises complete labored recommendations to the issues posed in quantity 1. when the most quantity comprises illustrative labored examples through the textual content, this booklet comprises solutions to the more difficult questions posed on the finish of every bankruptcy of the most text.

those questions are of either a typical and non-standard nature, and so will end up to be of curiosity to either educational employees instructing classes during this zone and to the willing scholar. Chemical engineers in who're searching for a customary approach to a real-life challenge also will locate the publication of substantial curiosity.

* a useful resource of knowledge for the coed learning the fabric contained in Chemical Engineering quantity 1
* A important approach to studying - solutions are defined in complete

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What will be the pressure drop when the suspension is flowing under laminar conditions in a pipe 200 m long and 40 mm diameter, when the centre line velocity is 1 m/s, according to the power law model? Calculate the centre line velocity for this pressure drop for the Bingham plastic model and comment on the result. 10. 37 Show how, by suitable selection of the index n, the power-law may be used to describe the behaviour of both shear-thinning and shear-thickening non-Newtonian fluids over a limited range of shear rates.

Thus the existing pump is satisfactory for this duty. 11 Explain the phenomenon of hydraulic jump which occurs during the flow of a liquid in an open channel. 5 m/s and a depth of 75 mm. Calculate, from first principles, the corresponding velocity and depth after the jump. 9. 12 What is a non-Newtonian fluid? Describe the principal types of behaviour exhibited by these fluids. 5 where a is the viscosity, and du/dr is the velocity gradient normal to the direction of motion. Show that the volumetric rate of streamline flow through a horizontal tube of radius a is: P 2 a5 5 2kl where P is the pressure drop over a length l of the tube.

At what distance from the centre of the pipe will the fluid be flowing at the average velocity? 28 Cooling water supplied to a heat exchanger flows through 25 mm diameter tubes each 5 m long arranged in parallel. If the pressure drop over the heat exchanger is not to exceed 8000 N/m2 , how many tubes must be included for a total flowrate of water of 110 tonne/h? Density of water D 1000 kg/m3 . Viscosity of water D 1 mNs/m2 . Assume pipes to be smooth-walled. If ten per cent of the tubes became blocked, what would the new pressure drop be?

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Chemical engineering. Solutions to the problems in chemical engineering by J R Backhurst, J H Harker, J.F. Richardson

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