A. 0.2
B. 0.4
C. 0.6
D. 0.8
Chemical Heat Transfer
Chemical Heat Transfer
A. Heat transfer co-efficient are high
B. There is no risk of contamination
C. There is no mist formation
D. Cost of equipment is lower
A. Dowtherm
B. Molten sodium
C. Water
D. Air
A. Long vertical evaporator
B. Horizontal tube evaporator
C. Agitated film evaporator
D. Calandria vertical tube evaporator
A. Increases
B. Decreases
C. Remain constant
D. May increase or decrease; depends on the material
A. Geometric
B. Arithmetic
C. Logarithmic
D. Either A., B. or C.
A. Re.Gz
B. Nu, Pr
C. Nu, Pr, Re
D. Nu, Gz
A. Heat the water from 0°C to 100°C
B. Evaporate the water
C. To superheat the steam
D. Data insufficient, can’t be predicted
A. 0
B. R2/(R1+R2)
C. 1
D. (R1/R2)2
A. Called the view factor
B. Called the angle of vision
C. Proportional to the square of the distance between surfaces
D. Expressed in terms of radians
