Process Equipment and Plant Design In a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement 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 Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer co-efficient Results in higher shell side pressure drop 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 Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer co-efficient Results in higher shell side pressure drop ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The diameter of a propeller agitator used in agitation tank ranges from __________ percent of the tank diameter and its peripherial speed is normally 300 to 500 metres/minute. 40 to 50 15 to 30 5 to 10 55 to 75 40 to 50 15 to 30 5 to 10 55 to 75 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Normally, the length to diameter ratio of rotary dryers varies form 4 to 10 and for its economic operation, the number of transfer units (NTU) for such dryers varies from 7.5-10.0 44119 3.5-5.5 1.5-2.5 7.5-10.0 44119 3.5-5.5 1.5-2.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In chemical process equipments, the conical bottom heads used, usually has an apex angle of 20° 40° 80° 60° 20° 40° 80° 60° ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Typical static submergence for bubble cap plate column operating at atmospheric pressure may be around 50% of the plate spacing 0.5" 2.5" 5" 50% of the plate spacing 0.5" 2.5" 5" ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity. 45 95 60 80 45 95 60 80 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS