mass transfer Flashcards
A gas holder - n H20/n Nitrogen =?
n H20/n Nitrogen = 0.0352
Mix of Benz Vap and Air - weight frac of benz:
weight frac of benz: 0.2301
Mix of Benz Vap and Air - molal humidity:
molal humidity: 0.1111
Mix of Benz Vap and Air - absolute humidity:
absolute humidity: 0.2989
Mix of Benz Vap and Air - % sat:
% sat: 70.67%
Mix of Benz Vap and Air - % rel. sat.:
% rel. sat.: 73.62%
Mix of Benz Vap and Air - mass of air:
106 kg or 95.4 kg
Air at 101. 3 kPa has dry bulb - heat supplied in kJ per kg of dry air:
heat supplied in kJ per kg of dry air: 66.28 kJ/kg
Air at 298 K, final temp:
final temp: 15 C
In a process in which benzene - pressure of gas to be compressed:
pressure of gas to be compressed: 344.22 kPa
0.6 m3/s of gas - vol of gas after drying:
vol of gas after drying: 0.5571 or 0.591
Air at 101.3 kPa enters an adiabatic drier - kg of finished product:
kg of finished product: 8.37 kg
Saturated air leaving - spec. humidity:
spec. humidity: 0.0122
Dry air is bubbled - how long til water vaporize:
how long til water vaporize: 67.8 days
A batch drier removes water - how long will the total drying require:
how long will the total drying require: 13.9 hr
A wet solid is dried - how long will (ks) it take to dry the solid:
how long will (ks) it take to dry the solid: 28.44
Wet material - how much air will be reqd to remove moisture:
how much air will be reqd to remove moisture: 3.77 kg/s OR 3.68
A solid is dried at cons drying conditions - time needed to dry the solid from crit moist:
time needed to dry the solid from crit moist: 5 hrs
Moist air is found - temp to dry from 40% to 5%:
temp to dry from 40% to 5%: 6.95 hr
What will be the volumetric flowrate
volumetric flowrate: 12.65 ft3/min OR 700 m3
In a batch drying experiment - mass of dry solid per unit area:
mass of dry solid per unit area: 35
Drying of a sample - how long to dry sample to free moist:
how long to dry sample to free moist: 5.77 hrs
Around airports - dew point:
dew point: 20.5 C
