Process Equipment and Plant Design Ratio of tube length to shell diameter for a shell and tube heat exchanger is Both B & C 4 : 1 to 8 : 1 for liquid-liquid exchanger < 4 : 1 for gas-gas exchangers 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers Both B & C 4 : 1 to 8 : 1 for liquid-liquid exchanger < 4 : 1 for gas-gas exchangers 8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Length to diameter ratio of most rotary driers is in the range of 1 to 2 20 to 30 10 to 20 4 to 10 1 to 2 20 to 30 10 to 20 4 to 10 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as D = 1.1 t D = 1.6 √t D = 1.5 t D = 3√t D = 1.1 t D = 1.6 √t D = 1.5 t D = 3√t ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Normally, the length to diameter ratio of rotary dryers varies form 4 to 10 and for its economic operation, the number of transfer units (NTU) for such dryers varies from 7.5-10.0 44119 3.5-5.5 1.5-2.5 7.5-10.0 44119 3.5-5.5 1.5-2.5 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is D1/(d1 + d2) D2/(d1 + d2) (d1 + d2)/d2 (d1 + d2)/d1 D1/(d1 + d2) D2/(d1 + d2) (d1 + d2)/d2 (d1 + d2)/d1 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the Lower static submergence Liquid gradient on the tray Lower skirt clearance Small downcomer liquid seal Lower static submergence Liquid gradient on the tray Lower skirt clearance Small downcomer liquid seal ANSWER DOWNLOAD EXAMIANS APP
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