Process Equipment and Plant Design In the design of a shell and tube heat exchanger, the corrosion allowance All of these Need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc For internal cover and tube sheet is provided on both the sides For carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe conditions it is 3 mm All of these Need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc For internal cover and tube sheet is provided on both the sides For carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe conditions it is 3 mm ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement Can accomodate less number of tubes for a given shell diameter Results in higher shell side pressure drop Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer co-efficient Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell side fluid Can accomodate less number of tubes for a given shell diameter Results in higher shell side pressure drop Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer co-efficient Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell side fluid ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from 0.5 to 1 2 to 2.5 1 to 1.5 1.5 to 2 0.5 to 1 2 to 2.5 1 to 1.5 1.5 to 2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or __________ times the column diameter, whichever is lower. 10-12.5 2.5-3.0 5-7.5 15-20 10-12.5 2.5-3.0 5-7.5 15-20 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design __________ tray arrangement is recommended for distillation column having diameter upto 4 ft. Cross flow Radial flow Cascade Split flow Cross flow Radial flow Cascade Split flow ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Which of the following factors determine the amount of entrainment in a distillation column? Vapour velocity in the volume between the plates Plate spacing All of these Depth of liquid above the bubble cap slots Vapour velocity in the volume between the plates Plate spacing All of these Depth of liquid above the bubble cap slots ANSWER DOWNLOAD EXAMIANS APP
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