- #1

dbag123

- 76

- 3

- Homework Statement:
- Calculate the amount of water vapor when 4m^3/min or 25C air is cooled to 20C. How much vapor is condensed to water in 1 hour and how much of the vapor is still in the system.

- Relevant Equations:
- pV/T=c

Hello

4m

Solution:

@ 25C

relative humidity lowers the water content from 22.8 to 15,96g/m

240m

total amount of water 3830,4g/hr, in vapor its 608,08g and in solid water 3232,3g/hr

@20C

17,1g/m

then volume is compressed to 26.67m

How does this tell me the amount of water condensed or how much of the vapor is in form of liquid water during 1 hour from temperature of 25C to 20C?

4m

^{3}/min is 240m^{3}/hr. Temperature is 293K, at 25C the amount of water is 22.8g/m^{3}and at 20C it is 17.1g/m^{3}. Relative humidity is 70% and absolute pressure 9bar.Solution:

@ 25C

relative humidity lowers the water content from 22.8 to 15,96g/m

^{3}so in total 3830.4g/hr240m

^{3 or air is compressed to 1/9, so 26,67m3}and in that compressed air the amount of water vapor would be 608,08 g every hourtotal amount of water 3830,4g/hr, in vapor its 608,08g and in solid water 3232,3g/hr

@20C

17,1g/m

^{3}to 11,97g/m^{3}due to relative humidity. total amount of water is 2872.8gthen volume is compressed to 26.67m

^{3}actually there is in compressed air 107.73g/m^{3}so the amount of vapor in compressed air would be 17.1g/m^{3}*26.67m^{3}or 455.9g. and in form of water 2416.9gHow does this tell me the amount of water condensed or how much of the vapor is in form of liquid water during 1 hour from temperature of 25C to 20C?