Process Equipment and Plant Design In perforated plate towers, the Pressure drop is less compared is similar bubble cap towers Total hole area may be around 6 to 15% of tower cross-sectional area All of these Hole sizes may be around 1/8" or 3/16" Pressure drop is less compared is similar bubble cap towers Total hole area may be around 6 to 15% of tower cross-sectional area All of these Hole sizes may be around 1/8" or 3/16" ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator Employs high velocity, high heat transfer rate and less heating surface requirement Is economical in operation Both B & C Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle Employs high velocity, high heat transfer rate and less heating surface requirement Is economical in operation Both B & C Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Joint efficiency (J) for a seamless pipe is < 0.5 0.85 1.2 1 < 0.5 0.85 1.2 1 ANSWER DOWNLOAD EXAMIANS APP
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) A/P 4 A/P 4 P/A √A A/P 4 A/P 4 P/A √A ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The main purpose of providing stepping on the trays is to Decrease the pressure drop Improve the flow condition Increase the residence time Facilitate handling of large flow rate of liquid Decrease the pressure drop Improve the flow condition Increase the residence time Facilitate handling of large flow rate of liquid ANSWER DOWNLOAD EXAMIANS APP
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