Process Equipment and Plant Design Floating head heat exchangers are used for the Heat transfer between corrosive fluids Cases where temperature difference between the shell and the tubes is more (>50°C) Counter-current heat transfer systems Co-current heat transfer systems Heat transfer between corrosive fluids Cases where temperature difference between the shell and the tubes is more (>50°C) Counter-current heat transfer systems Co-current heat transfer systems ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes Are less prone to fouling Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less None of these Are easier to clean Are less prone to fouling Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less None of these Are easier to clean ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The function of manholes provided in the shell of a distillation column is to Guard against foaming & entrainment by dumping antifoaming agent through it Give access to the individual trays for cleaning, maintenance and installation All of these Keep a check on the liquid gradient over the plate by direct visual observation Guard against foaming & entrainment by dumping antifoaming agent through it Give access to the individual trays for cleaning, maintenance and installation All of these Keep a check on the liquid gradient over the plate by direct visual observation ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to 25 cms 40% of the I.D. of the shell 5 cms I.D. of the shell 25 cms 40% of the I.D. of the shell 5 cms I.D. of the shell ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Compensation against openings in process vessels for giving inlet and outlet connections, for providing sight glasses and manholes etc. is provided for strength and rigidity. The most efficient type of compensation is of __________ type. Ring plate Flared out Nozzle or rim Fluid in Ring plate Flared out Nozzle or rim Fluid in ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In case of 1.5" heat exchanger tubes, the inside flow area __________ with decrease in BWG. Decreases Increases Remains same None of these Decreases Increases Remains same None of these ANSWER DOWNLOAD EXAMIANS APP