Process Equipment and Plant Design Typical static submergence for bubble cap plate column operating at atmospheric pressure may be around 2.5" 5" 50% of the plate spacing 0.5" 2.5" 5" 50% of the plate spacing 0.5" 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 45 and 75 5 and 10 180 and 300 300 and 500 45 and 75 5 and 10 180 and 300 300 and 500 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design 1.2 to 3.8 cms is the value of the All of these Downcomer liquid seal in case of a balanced tray design Skirt clearance for bubble caps Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.) All of these Downcomer liquid seal in case of a balanced tray design Skirt clearance for bubble caps Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will __________ times. Increase by 1.8 Decrease by 22 Increase by 21.6 None of these Increase by 1.8 Decrease by 22 Increase by 21.6 None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Liquid gradient over the tray results due to the Large plate spacing Low gas velocity Large reflux ratio Resistance offered to flow of liquids by caps & risers and the flow of gas Large plate spacing Low gas velocity Large reflux ratio Resistance offered to flow of liquids by caps & risers and the flow of gas ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The function of manholes provided in the shell of a distillation column is to Give access to the individual trays for cleaning, maintenance and installation All of these Keep a check on the liquid gradient over the plate by direct visual observation Guard against foaming & entrainment by dumping antifoaming agent through it Give access to the individual trays for cleaning, maintenance and installation All of these Keep a check on the liquid gradient over the plate by direct visual observation Guard against foaming & entrainment by dumping antifoaming agent through it ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS