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Moist air at 30C, 1.0325bar and 50% relative humidity enters a heat exchanger operating at steady...
Moist air at 20C and 50% relative humidity enters a duct consisting of a heating section...
Moist air at 20C and 50% relative humidity enters a duct consisting of a heating section followed by an evaporative cooling process. The air is heated to 35C in the heating section. The air then enters the evaporative cooling section where liquid water is injected into the moist air. The moist air exits the evaporative cooling section at 60% relative humidity. A. Determine the specific humidity at the exit of the heating section. (5 of 45 points. Please input your...
Moist air at 30°C, 1 atm, and 42% relative humidity enters an evaporative cooling unit operating...
Moist air at 30°C, 1 atm, and 42% relative humidity enters an evaporative cooling unit operating at steady state consisting of a heating section followed by a soaked pad evaporative cooler operating adiabatically. The air passing through the heating section is heated to 45°C. Next, the air passes through a soaked pad exiting with 50% relative humidity. A. Determine the specific humidity of the entering moist air (to the heating section). (5 of 45 points. Please input your final answer...
Air at 95°F, 1 atm, and 10% relative humidity enters an evaporative cooler operating at steady...
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...
Air at 95°F, 1 atm, and 10% relative humidity enters an evaporative cooler operating at steady...
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 lbm(dry...
A moist air of 25 °C and 200 kPa with relative humidity of 50% is mixed...
A moist air of 25 °C and 200 kPa with relative humidity of 50%
is mixed with nitrogen of 25 °C and 200 kPa. Then, the mixture is
expanded through a turbine to 100 kPa. Assuming the turbine is
ideal, determine the minimum nitrogen and moist air mole ratio
(kmol N2/kmol moist air) that does not induce condensation within
the turbine. Assume specific heat ratios are same for water vapor,
dry air, and nitrogen as 1.4.
3. (10 points) A...
12.54 Air at 12°C, 1 atm, and 40% relative humidity enters a heat exchanger with a...
12.54 Air at 12°C, 1 atm, and 40% relative humidity enters a heat exchanger with a volumetric flow rate of 1 m'/s. A separate stream of dry air enters at 280°C, 1 atm with a mass flow rate of 0.875 kg/s and exits at 220°C. Neglecting heat transfer between the heat exchanger and its surroundings, pressure drops of ach stream, and kinetic and potential energy effects, determine (a) the temperature of the exiting moist air, in °C
Moist air at 24°C, 1 atm, and 35% relative humidity enters an evaporative cooling unit operating...
Moist air at 24°C, 1 atm, and 35% relative humidity enters an evaporative cooling unit operating at steady state consisting of a heating section followed by a soaked pad evaporative cooler operating adiabatically. The air passing through the heating section is heated to 45°C. Next, the air passes through a soaked pad exiting with 50% relative humidity. Using data from the psychrometric chart, determine: (a) the humidity ratio of the entering moist air mixture, in kg(vapor) per kg(dry air). (b)...
11-35.A moist air mixture with a dry bulb temperature of 48°C, a relative humidity of 40...
11-35.A moist air mixture with a dry bulb temperature of 48°C, a relative humidity of 40 percent, and a total pressure of 160 kPa is contained in a rigid vessel having a volume of 1.65 m3. The air is cooled until the dry bulb temperature reaches 23°C. Determine the amount of heat transferred, the final pressure of the air, and the amount of water vapor condensed during the process.
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.
Please answer the relative humidity A humidifier takes in moist air at 29 °C, 1 bar,...
Please answer the relative humidity
A humidifier takes in moist air at 29 °C, 1 bar, and 50% relative humidity with a volumetric flow rate of 13 m3/s. To increase the moisture of the air, liquid water at 40 °C is sprayed into the moist air witha flow rate of 22 kg/s. Some of the liquid water evaporates into the moist air stream and the rest drain:s out of the humidifier with a temperature of 26 °C and a mass...
Moist air at 20C and 50% relative humidity enters a duct consisting of a heating section followed by an evaporative cooling process. The air is heated to 35C in the heating section. The air then enters the evaporative cooling section where liquid water is injected into the moist air. The moist air exits the evaporative cooling section at 60% relative humidity. A. Determine the specific humidity at the exit of the heating section. (5 of 45 points. Please input your...
Moist air at 30°C, 1 atm, and 42% relative humidity enters an evaporative cooling unit operating at steady state consisting of a heating section followed by a soaked pad evaporative cooler operating adiabatically. The air passing through the heating section is heated to 45°C. Next, the air passes through a soaked pad exiting with 50% relative humidity. A. Determine the specific humidity of the entering moist air (to the heating section). (5 of 45 points. Please input your final answer...
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...
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 lbm(dry...
A moist air of 25 °C and 200 kPa with relative humidity of 50%
is mixed with nitrogen of 25 °C and 200 kPa. Then, the mixture is
expanded through a turbine to 100 kPa. Assuming the turbine is
ideal, determine the minimum nitrogen and moist air mole ratio
(kmol N2/kmol moist air) that does not induce condensation within
the turbine. Assume specific heat ratios are same for water vapor,
dry air, and nitrogen as 1.4.
3. (10 points) A...
12.54 Air at 12°C, 1 atm, and 40% relative humidity enters a heat exchanger with a volumetric flow rate of 1 m'/s. A separate stream of dry air enters at 280°C, 1 atm with a mass flow rate of 0.875 kg/s and exits at 220°C. Neglecting heat transfer between the heat exchanger and its surroundings, pressure drops of ach stream, and kinetic and potential energy effects, determine (a) the temperature of the exiting moist air, in °C
Moist air at 24°C, 1 atm, and 35% relative humidity enters an evaporative cooling unit operating at steady state consisting of a heating section followed by a soaked pad evaporative cooler operating adiabatically. The air passing through the heating section is heated to 45°C. Next, the air passes through a soaked pad exiting with 50% relative humidity. Using data from the psychrometric chart, determine: (a) the humidity ratio of the entering moist air mixture, in kg(vapor) per kg(dry air). (b)...
11-35.A moist air mixture with a dry bulb temperature of 48°C, a relative humidity of 40 percent, and a total pressure of 160 kPa is contained in a rigid vessel having a volume of 1.65 m3. The air is cooled until the dry bulb temperature reaches 23°C. Determine the amount of heat transferred, the final pressure of the air, and the amount of water vapor condensed during the process.
Please answer the relative humidity
A humidifier takes in moist air at 29 °C, 1 bar, and 50% relative humidity with a volumetric flow rate of 13 m3/s. To increase the moisture of the air, liquid water at 40 °C is sprayed into the moist air witha flow rate of 22 kg/s. Some of the liquid water evaporates into the moist air stream and the rest drain:s out of the humidifier with a temperature of 26 °C and a mass...
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