A stream of air (stream 1) at 60°F, 1 atm, 30% relative humidity
is mixed adiabatically with a stream of air (stream 2) at 90°F, 1
atm, 80% relative humidity. A single stream (stream 3) exits the
mixing chamber at temperature T3 and 1 atm.
Assume steady state and ignore kinetic and potential energy
effects.
Letting r denote the ratio of dry air mass flow rates
m˙a1/m˙a2 determine T3, in °F, for r =
0.1
T3 = ______ F
A stream of air (stream 1) at 60°F, 1 atm, 30% relative humidity is mixed adiabatically...
Two airstreams are mixed steadily and adiabatically. The first stream enters at 3 percent relative humidity at a rate of 10 m'/min, while the second stream enters at 8°C and 90 percent relative humidity at a rate of 15 mlmin. Assuming that the mixing process occurs at a pressure of I atm, (a) determine the specific humidity (20 points), (b) the relative humidity (20 ints), (e) the dry-bulb temperature (10 points), and the (d) volume flow rate of the mixture...
Air at 95°F, 1 atm, and 10% relative humidity enters an evaporative cooler operating at steady state. The volumetric flow rate of the incoming air is 895 ft3/min. Liquid water at 68°F enters the cooler and fully evaporates. Moist air exits the cooler at 70°F, 1 atm. There is no significant heat transfer between the device and its surroundings and kinetic and potential energy effects can be neglected. a)Determine the mass flow rate of the dry air in lb(dry air)/min....
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Air at 95°F, 1 atm, and 10% relative humidity enters an evaporative cooler operating at steady state. The volumetric flow rate of the incoming air is 1765 ft3/min. Liquid water at 68°F enters the cooler and fully evaporates. Moist air exits the cooler at 70°F, 1 atm. There is no significant heat transfer between the device and its surroundings and kinetic and potential energy effects can be neglected. A. Determine the mass flow rate of the dry air in Ibm(dry...
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