Shell side pressure drop in a shell and tube heat exchanger does not depend upon the_________________?

Byadmin March 3, 2019August 24, 2021

Shell side pressure drop in a shell and tube heat exchanger does not depend upon the_________________?

A. Baffle spacing & shell diameter
B. Tube diameter & pitch
C. Viscosity, density & mass velocity of shell side fluid
D. None of these

Chemical Heat Transfer

In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to _____________ the velocity head?

In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to _____________ the velocity head?

A. Twice
B. Four times
C. Square root of
D. Square of

Read More In a multipass shell and tube heat exchanger, tube side return pressure loss is equal to _____________ the velocity head?
Chemical Heat Transfer

The number of kg vaporised per kg of steam fed to the evaporator is defined as____________?

The number of kg vaporised per kg of steam fed to the evaporator is defined as____________?

A. Capacity
B. Rate of evaporation
C. Economy
D. Rate of vaporisation

Read More The number of kg vaporised per kg of steam fed to the evaporator is defined as____________?
Chemical Heat Transfer

Heat flux increases with temperature drop beyond the Leiden frost point in the plot of heat flux vs. temperature drop for a boiling liquid, because___________________?

Heat flux increases with temperature drop beyond the Leiden frost point in the plot of heat flux vs. temperature drop for a boiling liquid, because___________________?

A. Convection becomes important
B. Conduction becomes important
C. Radiation becomes important
D. Sub-cooled boiling occurs

Read More Heat flux increases with temperature drop beyond the Leiden frost point in the plot of heat flux vs. temperature drop for a boiling liquid, because___________________?
Chemical Heat Transfer

Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the________________?

Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the________________?

A. Surrounding temperature
B. Average temperature of the fin
C. Temperature of the fin end
D. Constant temperature equal to that of the base

Read More Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the________________?
Chemical Heat Transfer

Multiple effect evaporators ar used to___________________?

Multiple effect evaporators ar used to___________________?

A. Increase the steam economy & decrease the capacity
B. Increase the steam economy & the capacity
C. Decrease the steam economy & the capacity
D. Decrease the steam economy & increase the capacity

Read More Multiple effect evaporators ar used to___________________?
Chemical Heat Transfer

In Biot number, the characteristic length used is the ratio of the _______________ of the solid?

In Biot number, the characteristic length used is the ratio of the _______________ of the solid?

A. Volume to surface area
B. Perimeter to surface area
C. Surface area to volume
D. Surface area to perimeter

Read More In Biot number, the characteristic length used is the ratio of the _______________ of the solid?

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