Pick out the wrong statement pertaining to the design of a horizontal tube evaporator.
Options
A. It is unsuitable for concentrating those liquids, which form a scale or deposit salt.
B. It is suitable for process, in which the final product is a liquor instead of solid.
C. Its usual dimensions are: tube dia = 2-3 cms; evaporator body dia = 1-4 metres and evaporator height = 2.5-4 metres.
D. Liquor flows inside the tube, while the steam is outside submerging the tube.
Correct Answer
Liquor flows inside the tube, while the steam is outside submerging the tube.
More questions
1. Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m3 . The diffusivity of aniline in air is 0.74xl0-5m2/s.The numerical value of mass transfer co-efficient is 7.4 x 10-3. The rate of evaporation of aniline is 2.97 x 10-4. Its units are
3. Under conditions of equal reduced pressure and equal reduced temperature, substances are said to be in the 'corresponding states'. At equal reduced conditions i.e., at the corresponding state, the __________ of different gases are nearly the same.