Air enters a window air conditioner at 1 atm, 30 oC, and 80 percent relative humidity...
Air enters a window air conditioner at 1 atm, 30 oC, and 80 percent relative humidity at a rate of 10 m3/min, and it leaves as saturated air at 15 oC. Part of the moisture in the air that condenses during the process is also removed at 15 oC. Use this information to answer the following question. choose the nearest value given in (a) – (e).
The heat removal rate (kW) is
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Air enters a window air conditioner at 1 atm, 30 oC, and 80
percent relative humidity...
150 ft3/min of air at 80F dry-bulb temperature and 70% relative humidity enters an air conditioning...
150 ft3/min of air at 80F dry-bulb temperature and 70% relative humidity enters an air conditioning unit and leaves it as saturated air at 50F. Part of the moisture in the air that condensate is collected and removed at 55F. Draw the cycle on the attached chart and a)Determine the rates of heat removal from the air. b)Determine the rate of moisture removal from the air
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.
Air enters a cooling section of 40-cm-diameter at 1 atm, 32°C, and 30 percent relative humidity...
Air enters a cooling section of 40-cm-diameter at 1 atm, 32°C, and 30 percent relative humidity at 18 m/s. Heat is removed from the air at a rate of 1200 kJ/min. Determine: (a) the exit temperature (b) the exit relative humidity of the air (c) the exit velocity.
An air conditioner removes hot air at 35 °C and 70 % relative humidity from the...
An air conditioner removes hot air at 35 °C and 70 % relative humidity from the atmosphere and delivers cool air at 20 °C and a constant pressure of 1 atm. A. Using the psychrometric chart, determine the fraction of water that condenses from the humid air. B. Determine the rate at which heat must be removed from the system in order to deliver 20m3/min of humid air to a home.
3. The outdoor air enters an AC system at 10°C and 75% relative humidity at a...
3. The outdoor air enters an AC system at 10°C and 75% relative humidity at a steady rate of 26 m3/ min, and it leaves at 25°C and 45% relative humidity. The outdoor air is first heated to 21°C in the heating section and then humidified by injection of hot steam in the humidifying section. Assuming the entire process takes place at 1 atm, determine (a) the rate of heat supply in the heating section, and (b) the mass flow...
Air at 40.4 oC and 40% relative humidity (RH) is cooled at a constant pressure of...
Air at 40.4 oC and 40% relative humidity (RH) is cooled at a constant pressure of 1 atm to 14 oC in an air cooler. a. Draw and label the process flow diagram of the above process. b. Determine the fraction of the condensed water. c. Determine the rate at which heat (kJ/s) must be removed to deliver 1 m3/s of humid air at the final condition. d. If the humid air is not saturated, estimate the rate of heat...
An air conditioner cools 226 m^3/min of humid air at 36 oC and 98% relative humidity...
An air conditioner cools 226 m^3/min of humid air at 36 oC and 98% relative humidity to 10 oC. Calculate the rate of condensation of water in kg/hr and the cooling requirement in kW. (Ans: 442 kg/hr, 417 kW)
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...
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...
An air conditioner operating at steady state takes in moist air at 28ºC, 1 atm and...
An air conditioner operating at steady state takes in moist air at 28ºC, 1 atm and 70% relative humidity. The moist air first passes over a cooling coil in the dehumidifier unit and some water vapor is condensed. The rate of heat transfer between the moist air and the cooling coil is 38.69 kW. Both saturated moist air and condensate streams exit the dehumidifier unit at the same temperature. The moist air then passes through a heating unit, exiting at...
3. The outdoor air enters an AC system at 10°C and 75% relative humidity at a steady rate of 26 m3/ min, and it leaves at 25°C and 45% relative humidity. The outdoor air is first heated to 21°C in the heating section and then humidified by injection of hot steam in the humidifying section. Assuming the entire process takes place at 1 atm, determine (a) the rate of heat supply in the heating section, and (b) the mass flow...
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...
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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