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8°C and 20 3 Two airstreams are mixed steadily and adiabatically. The first stream enters at percent relative humidity at a rate of 10 m'/min, while the second stream enters at 8°C and 90 percent...
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 relati...
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...
Problem 14.9: Two airstreams are mixed steadily and adiabatically. The first stream enters at 35°C and...
Problem 14.9: Two airstreams are mixed steadily and adiabatically. The first stream enters at 35°C and 30 percent relative humidity at a rate of 15 m'/min, while the second stream enters at 12°C and 90 percent relative humidity at a rate of 25 m/min. Assuming that the mixing process occurs at a pressure of 90kPa, determine the specific humidity, the relative humidity, the dry-bulb temperature, and the volume flow rate of the mixture.
A stream of air (stream 1) at 60°F, 1 atm, 30% relative humidity is mixed adiabatically...
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
stream consisting of 130 m'/min of moist air at a rature of 8°C and a humidity ratio of 0.0015 kg(vapor)/ dry a...
stream consisting of 130 m'/min of moist air at a rature of 8°C and a humidity ratio of 0.0015 kg(vapor)/ dry air) is mixed adiabatically with a second stream 12 températ Kgl ting of 400 m3/min of moist air at 25°C and 40% relative humidity. The pressure is constant throughout at 1 bar. Using the psychrometric chart, determine (a) the humidity ratio and (b) the temperature of the exiting mixed stream, in °C
stream consisting of 130 m'/min of moist...
a) Define relative humidity (2 marks) b) Describe the relation between relative humidity, the capacity of...
a) Define relative humidity (2 marks) b) Describe the relation between relative humidity, the capacity of air to hold moisture a ambient temperature. (2 marks) c) Moist air at 22°C and a wet bulb temperature of 9°C enters a steam spray humidifier. The mass flow of the dry air is 90 kg/min. Saturated water vapor at 110 °C is injected into the mixture at a rate of 52 kg/hr. There is no heat transfer with the surroundings, and the pressure...
Moist air at 20° c, 1 atm, and 43% relative humidity and a volumetric flow rate...
Moist air at 20° c, 1 atm, and 43% relative humidity and a volumetric flow rate of 900 m/hrs. enters a control volume at steady state and flow along a surface maintained at 65 C, through which heat transfer occurs. Liquid water at 20" C is injected at a rate of 5 kg/hr and evaporates into flowing stream. For the control volume, Wa=0, and kinetic and potential energy effects are negligible. Moist air exits at 32c, 1 atm, (a) draw...
Moist air at 20°C, 1 atm, and 43% relative humidity and a volumetric flow rate of...
Moist air at 20°C, 1 atm, and 43% relative humidity and a volumetric flow rate of 900 m²/hrs. enters a control volume at steady state and flow along a surface maintained at 65°C, through which heat transfer occurs. Liquid water at 20°C is injected at a rate of 5 kg/hr and evaporates into flowing stream. For the control volume, Wev=0, and kinetic and potential energy effects are negligible. Moist air exits at 32°C, 1 atm. (a) draw the system schematic...
2) Very humid air enters a dehumidifier at 500 ft^3/min. The air is at a dry-bulb...
2) Very humid air enters a dehumidifier at 500 ft^3/min. The air is at a dry-bulb temperature of 85 degrees F and a relative humidity of 90%. The specific humidity of the mixture must be brought to 30 grains of water per pound mass of air. Assume atmospheric mixture pressure. A) How low must the dry-bulb temperature go to achieve this? B) What is the rate at which energy must be removed to accomplish the reduction in specific humidity, in...
Moist air at 20°C, 1 atm, and 43% relative humidity and a volumetric flow rate of...
Moist air at 20°C, 1 atm, and 43% relative humidity and a volumetric flow rate of 900 m/hrs. enters a control volume at steady state and flow along a surface maintained at 65° C, through which heat transfer occurs. Liquid water at 20° C is injected at a rate of 5 kg/hr and evaporates into flowing stream. For the control volume, Wev =0, and kinetic and potential energy effects are negligible. Moist air exits at 32°C, 1 atm. (a) draw...
Moist air enters a duct at 10 °C, 80% relative humidity, and a volumetric flow rate...
Moist air enters a duct at 10 °C, 80% relative humidity, and a volumetric flow rate of 150 m3/min. The mixture is heated as it flows through the duct and exits at 30 °C. No moisture is added or removed and the mixture stays at 1 atm. Determine the rate of heat transfer and the relative humidity at the exit.
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...
Problem 14.9: Two airstreams are mixed steadily and adiabatically. The first stream enters at 35°C and 30 percent relative humidity at a rate of 15 m'/min, while the second stream enters at 12°C and 90 percent relative humidity at a rate of 25 m/min. Assuming that the mixing process occurs at a pressure of 90kPa, determine the specific humidity, the relative humidity, the dry-bulb temperature, and the volume flow rate of the mixture.
stream consisting of 130 m'/min of moist air at a rature of 8°C and a humidity ratio of 0.0015 kg(vapor)/ dry air) is mixed adiabatically with a second stream 12 températ Kgl ting of 400 m3/min of moist air at 25°C and 40% relative humidity. The pressure is constant throughout at 1 bar. Using the psychrometric chart, determine (a) the humidity ratio and (b) the temperature of the exiting mixed stream, in °C
stream consisting of 130 m'/min of moist...
a) Define relative humidity (2 marks) b) Describe the relation between relative humidity, the capacity of air to hold moisture a ambient temperature. (2 marks) c) Moist air at 22°C and a wet bulb temperature of 9°C enters a steam spray humidifier. The mass flow of the dry air is 90 kg/min. Saturated water vapor at 110 °C is injected into the mixture at a rate of 52 kg/hr. There is no heat transfer with the surroundings, and the pressure...
Moist air at 20° c, 1 atm, and 43% relative humidity and a volumetric flow rate of 900 m/hrs. enters a control volume at steady state and flow along a surface maintained at 65 C, through which heat transfer occurs. Liquid water at 20" C is injected at a rate of 5 kg/hr and evaporates into flowing stream. For the control volume, Wa=0, and kinetic and potential energy effects are negligible. Moist air exits at 32c, 1 atm, (a) draw...
Moist air at 20°C, 1 atm, and 43% relative humidity and a volumetric flow rate of 900 m²/hrs. enters a control volume at steady state and flow along a surface maintained at 65°C, through which heat transfer occurs. Liquid water at 20°C is injected at a rate of 5 kg/hr and evaporates into flowing stream. For the control volume, Wev=0, and kinetic and potential energy effects are negligible. Moist air exits at 32°C, 1 atm. (a) draw the system schematic...
Moist air at 20°C, 1 atm, and 43% relative humidity and a volumetric flow rate of 900 m/hrs. enters a control volume at steady state and flow along a surface maintained at 65° C, through which heat transfer occurs. Liquid water at 20° C is injected at a rate of 5 kg/hr and evaporates into flowing stream. For the control volume, Wev =0, and kinetic and potential energy effects are negligible. Moist air exits at 32°C, 1 atm. (a) draw...
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