Process Equipment and Plant Design In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of 3000 10000 5000 1000 3000 10000 5000 1000 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Le/D for 90° elbow (medium radius) and 90°square elbow would be respectively around 100 and 250 3 and 5 250 and 600 25 and 60 100 and 250 3 and 5 250 and 600 25 and 60 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Holes of a sieve tray are arranged in triangular pitch of __________ times the hole diameter. 2.5 to 5 5 to 10 1.5 to 2 10 to 15 2.5 to 5 5 to 10 1.5 to 2 10 to 15 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger, the 'tube pitch' is defined as the Shortest centre to centre distance between adjacent tubes O.D. of the tube for square pitch None of these Shortest distance between two adj acent tube holes Shortest centre to centre distance between adjacent tubes O.D. of the tube for square pitch None of these Shortest distance between two adj acent tube holes ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The centre to centre distance between two consecutive baffles in a shell and tube heat exchanger is called the baffle pitch or baffle spacing, which is more than 1/5th the I.D. of the shell. Which of the following is not a function of the baffles? To increase the residence time of shell side fluid To reduce the induced vibration in the tubes To increase the tube side heat transfer co-efficient by inducing turbulence To provide support to the tube bundle To increase the residence time of shell side fluid To reduce the induced vibration in the tubes To increase the tube side heat transfer co-efficient by inducing turbulence To provide support to the tube bundle ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In shell and tube heat exchangers, straight tie rods are used to None of these Fix the tubes in position Account for thermal strain Hold baffle in space None of these Fix the tubes in position Account for thermal strain Hold baffle in space ANSWER DOWNLOAD EXAMIANS APP
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