Chemical Heat Transfer

Removal of ______________ heat is involved in the condensation of a vapor under saturated conditions?

Byadmin March 3, 2019August 24, 2021

Removal of ______________ heat is involved in the condensation of a vapor under saturated conditions?

A. Super
B. Sensible
C. Latent
D. Both B. & C.

Chemical Heat Transfer

Which one gives the monochromatic emissive power for black body radiation ?

Which one gives the monochromatic emissive power for black body radiation ?

A. Planck’s law
B. Kirchhoff’s law
C. Wien’s law
D. Stefan-Boltzmann law

Read More Which one gives the monochromatic emissive power for black body radiation ?
Chemical Heat Transfer

Heat flux through several resistances in series in analogous to the current flowing through several_____________________?

Heat flux through several resistances in series in analogous to the current flowing through several_____________________?

A. Resistances in parallel
B. Capacitors in series
C. Resistances in series
D. None of these

Read More Heat flux through several resistances in series in analogous to the current flowing through several_____________________?
Chemical Heat Transfer

Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger ?

Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger ?

A. Corrosiveness & fouling characteristics
B. Pressure
C. Viscosity
D. Density

Read More Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger ?
Chemical Heat Transfer

Crystal size in a continuous crystalliser depends upon the___________________?

Crystal size in a continuous crystalliser depends upon the___________________?

A. Rate of heat transfer
B. Degree of turbulence
C. Degree of super-saturation
D. All A., B. and C

Read More Crystal size in a continuous crystalliser depends upon the___________________?
Chemical Heat Transfer

For a laminar flow of fluid in a circular tube, ‘h1’ is the convective heat transfer co-efficient at velocity ‘V1’. If the velocity is reduced by half and assuming the fluid properties are constant, the new convective heat transfer co-efficient is________________?

For a laminar flow of fluid in a circular tube, ‘h1’ is the convective heat transfer co-efficient at velocity ‘V1’. If the velocity is reduced by half and assuming the fluid properties are constant, the new convective heat transfer co-efficient is________________?

A. 1.26 h1
B. 0.794 h1
C. 0.574 h1
D. 1.741 h1

Read More For a laminar flow of fluid in a circular tube, ‘h1’ is the convective heat transfer co-efficient at velocity ‘V1’. If the velocity is reduced by half and assuming the fluid properties are constant, the new convective heat transfer co-efficient is________________?
Chemical Heat Transfer

_____________ heat exchanger is the most suitable, when the temperature of shell side fluid is much higher than that of tube side?

_____________ heat exchanger is the most suitable, when the temperature of shell side fluid is much higher than that of tube side?

A. Single pass, fixed tube sheet
B. U-tube
C. Three pass, fixed tube sheet
D. None of these

Read More _____________ heat exchanger is the most suitable, when the temperature of shell side fluid is much higher than that of tube side?