Process Equipment and Plant Design A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by (ph - dh . dt/2)/ph (ph - dh)/dh (ph - dh)/ph (ph - dt)/ph (ph - dh . dt/2)/ph (ph - dh)/dh (ph - dh)/ph (ph - dt)/ph ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design An increase in the liquid resistance to interphase mass transfer and a resultant reduction in plate efficiency is caused by An increase in liquid viscosity Decrease in gas solubility for absorbers All of these An increase in relatived volatility for rectification columns An increase in liquid viscosity Decrease in gas solubility for absorbers All of these An increase in relatived volatility for rectification columns ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing. 1000-1500 20-40 100-150 43835 1000-1500 20-40 100-150 43835 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is > 20 < 50 < 7 < 30 > 7 < 15 > 20 < 50 < 7 < 30 > 7 < 15 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Height of the flights in the rotary drier is in the range of 0.5 to 0.6 d 0.2 to 0.5 d 0.08 to 0.12 d 0.02 to 0.05 d 0.5 to 0.6 d 0.2 to 0.5 d 0.08 to 0.12 d 0.02 to 0.05 d ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Poisson's ratio of a material is the ratio of unit lateral strain to the unit axial elongation within its elastic limit. The value of Poisson's ratio for structural and pressure vessel steel may be taken as 0.01 0.3 0.95 0.75 0.01 0.3 0.95 0.75 ANSWER DOWNLOAD EXAMIANS APP
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