Process Equipment and Plant Design Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle? Segmental baffle Helical type baffle Disk type baffle Flat plate extending across the wall Segmental baffle Helical type baffle Disk type baffle Flat plate extending across the wall ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Speed of industrial paddle agitator ranges from __________ rpm. 500 to 750 1000 to 2000 20 to 100 1 to 5 500 to 750 1000 to 2000 20 to 100 1 to 5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness. Equal to Half Twice Four times Equal to Half Twice Four times ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about __________ mm Hg (referred to a 760 mm mercury barometer). 650 250 750 450 650 250 750 450 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Ponchon Savarit method is based on the use of enthalpy concentration diagram, which contains the bubble point curve (saturated liquid curve), dew point curve (saturated vapour curve) and equilibrium tie lines. As compared to McCabe-Thiele's method, this method Is more accurate in finding the number of equilibrium stages Accounts for the enthalpy changes in the process All of these Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method Is more accurate in finding the number of equilibrium stages Accounts for the enthalpy changes in the process All of these Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Normally, the ratio of the total riser area to the tower cross sectional area (for bubble cap towers of diameter more than 3 ft) is around 0.4-0.6 0.1-0.2 0.55-0.85 0.35-0.75 0.4-0.6 0.1-0.2 0.55-0.85 0.35-0.75 ANSWER DOWNLOAD EXAMIANS APP
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