In a test on the vaporization of H20 into air in a wetted-wall column, the following data
Question:
In a test on the vaporization of H20 into air in a wetted-wall column, the following data were obtained: Tube diameter, 1.46 cm, Wetted-tube length, 82.7 cm Air rate to tube at 24oC and 1 atm, 720 cm3/s Temperature of inlet water, 25.15oC, Temperature of outlet water, 25.3SoC Partial pressure of water in inlet air, 6.27 ton; and in outlet air, 20.1 torr The value for the diffusivity of water vapor in air is 0.22 cm2/s at 0°C and 1 atm. The mass velocity of air is taken relative to the pipe wall. Calculate:
(a) Rate of mass transfer of water into the air
(b) KG for the wetted-wall column
Step by Step Answer:
Use cgs units No mass transfer resistance in the liquid phase because pure water a The rate of mass ...View the full answer
Related Video
In this video, the concept of pressure has been explained. The bottle is filled up with water, remove the pipe, and now you can see the clear flow of water from the holes due to liquid pressure.You can see that the second layer is holding the weight of the first layer and the third layer holding the weight of both upper layers, that’s why liquid flows out wider from the third as compared to the first two.At the first hole, water doesn’t roll along the walls; it flows out at an angle.At the second hole, you’ll see that the water flows out at a wider angle as compared to the first hole.At the third hole, we can see that the flow of water is much wider/greater than the other holes.This proves that the pressure at the bottom of the bottle is much more than the pressure at the top layers. P = ????gh
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