Process Equipment and Plant Design In a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement Results in higher shell side pressure drop Can accomodate less number of tubes for a given shell diameter Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell side fluid Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer co-efficient Results in higher shell side pressure drop Can accomodate less number of tubes for a given shell diameter Facilitates easier shell side cleaning; hence is more suitable for handling high dirt factor shell side fluid Creates relatively lower turbulence on the shell side resulting in lower shell side heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The ratio of linear stress to linear strain is termed as the None of these Modulus of elasticity Modulus of rigidity Bulk modulus None of these Modulus of elasticity Modulus of rigidity Bulk modulus ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For identical operating conditions, the pressure drop over __________ tray is the highest out of the following. Counterflow Sieve Valve Bubble cap Counterflow Sieve Valve Bubble cap ANSWER DOWNLOAD EXAMIANS APP
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 10000 3000 5000 1000 10000 3000 5000 1000 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Ratio of tube length to shell diameter for a shell and tube heat exchanger is 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers 4 : 1 to 8 : 1 for liquid-liquid exchanger Both B & C < 4 : 1 for gas-gas exchangers 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers 4 : 1 to 8 : 1 for liquid-liquid exchanger Both B & C < 4 : 1 for gas-gas exchangers ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be Same as that for fluid flow More than that for fluid flow D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively) Less than that for fluid flow Same as that for fluid flow More than that for fluid flow D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively) Less than that for fluid flow ANSWER DOWNLOAD EXAMIANS APP
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