Process Equipment and Plant Design The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid) 4 P/A 4 A/P √A A/P 4 P/A 4 A/P √A A/P 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 180 and 300 300 and 500 45 and 75 5 and 10 180 and 300 300 and 500 45 and 75 5 and 10 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Hole diameter of the seive trays in the distillation column ranges from __________ mm. 12.5 to 18.5 3 to 12.5 L to 3 4 to 8 12.5 to 18.5 3 to 12.5 L to 3 4 to 8 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design It is not desirable to design a heat exchanger for LMTD correction factor, FT, of less than 0.8 0.95 0.55 0.99 0.8 0.95 0.55 0.99 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Tube height in a calendria type evaporator is normally less than __________ metres. 1 2 5.5 3.5 1 2 5.5 3.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area. 2.5 to 4.0 0.5 to 1.5 10 to 15 5 to 10 2.5 to 4.0 0.5 to 1.5 10 to 15 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
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