Process Equipment and Plant Design A minimum clearance of about __________ mm is maintained between the distillation column wall and the bubble cap. 76 38 19 95 76 38 19 95 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter. 1/20-1/30th 1/2 to 1/4th 1/10-1/15th 1/5-1/10th 1/20-1/30th 1/2 to 1/4th 1/10-1/15th 1/5-1/10th 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. 5-7.5 15-20 10-12.5 2.5-3.0 5-7.5 15-20 10-12.5 2.5-3.0 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Pressure drop due to pipe fittings can be estimated by the equation, ΔP/p = 4f.Le/D.V2/2gc, where, Le = equivalent length of straight pipeline which will incur the same frictional loss as the fitting and D = diameter of the fitting. The value of Le/D (dimensionless) for 45° elbow and 180° close return bends would be respectively around 300 and 500 5 and 10 180 and 300 45 and 75 300 and 500 5 and 10 180 and 300 45 and 75 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The length of straight rectangular weir used on cross-flow trays is generally __________ the column diameter. Twice 2 ft irrespective of (for column > 3 ft diameter) 0.6-0.8 times Equal to Twice 2 ft irrespective of (for column > 3 ft diameter) 0.6-0.8 times Equal to ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Lug support is All of these Provided usually for vessels of much smaller height than skirt supported vessels The most suitable for thick vertical vessel Same as bracket support All of these Provided usually for vessels of much smaller height than skirt supported vessels The most suitable for thick vertical vessel Same as bracket support ANSWER DOWNLOAD EXAMIANS APP
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