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.
Homework Answers
ACCORDING TO THE DATA AND DIAGRAM ARE GIVEN IN THE QUESTION,
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Air enters a cooling section of 40-cm-diameter at 1 atm, 32°C,
and 30 percent relative humidity...
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...
Atmospheric air at 32°C and 70% relative humidity passes through a cooling section in an air-conditioning...
Atmospheric air at 32°C and 70% relative humidity passes through a cooling section in an air-conditioning duct where the air is cooled below its dew point and some of the water is removed. The air then passes over a heating section where heat is added until the final temperature is 22°C and the relative humidity is 45%. Assume the process occurs at constant pressure of 1 atm. Using the psychrometric chart, determine: (a) The amount of water removed in the...
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)...
On a summer day the pressure is 1 atm, the temperature is 32°C, and the relative humidity is 95 percent. This air is to be conditioned to 24°C and 60 percent relative humidity. a) Determine the amount...
On a summer day the pressure is 1 atm, the temperature is 32°C,
and the relative humidity is 95 percent. This air is to be
conditioned to 24°C and 60 percent relative humidity.
a) Determine the amount of cooling, in kJ, required and
b) Water removed, in kg, per 1000 m3 of dry air processed at the
entrance to the system.
Cooling coils Ti 32С ф,-95% т,-24°C φ2 60% l atm Condensate
Cooling coils Ti 32С ф,-95% т,-24°C φ2 60%...
Question 4 a. A vessel contains a gaseous mixture of composition by volume 80% H2, and...
Question 4 a. A vessel contains a gaseous mixture of composition by volume 80% H2, and 20% CO. It is desired that the mixture should be made in the proportion 50% H2 and 50% CO by removing some of the mixture and adding some Co. Calculate, per kilomole of mixture, the mass of mixture to be removed and the mass of CO to be added. The pressure and temperature in the vessel remain constant during the process. Take the molar...
(a) A vessel contains a gaseous mixture of composition by volume 80% H2, and 20% CO....
(a) A vessel contains a gaseous mixture of composition by volume 80% H2, and 20% CO. It is desired that the mixture should be made in the proportion 50% H2 and 50% CO by removing some of the mixture and adding some CO. Calculate, per kilomole of mixture, the mass of mixture to be removed and the mass of CO to be added. The pressure and temperature in the vessel remain constant during the process. Take the molar mass of...
The atmospheric air 32 °C dry bulb temperature and 70% relative humidity supplied to the cooling...
The atmospheric air 32 °C dry bulb temperature and 70% relative humidity supplied to the cooling coil at a rate of 45m3/min. The air cooling to the saturated state and leaving at a temperature of 16 °C. Determine: a- Specific humidity at each state. b- Wet bulb and dew point temperatures at the final state c- Final relative humidity. d- Mass of water condensed. e- Rate of heat removed from the air in kW. f- Show the process on Psychrometric...
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
Please show work 11-43·Atmospheric air with a dry bulb temperature of 30°C and a relative humidity...
Please show work
11-43·Atmospheric air with a dry bulb temperature of 30°C and a relative humidity f 40 percent enters the cooling section of an air-conditioning system at a rate of 10 kg/s and is cooled to 18°C. Determine the volumetric flow rate of the air leaving the cooling section, the heat-transfer rate required for this process, and the entropy change of the air per unit mass of dry air. If the velocity of the airstream is not to exceed...
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 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...
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)...
On a summer day the pressure is 1 atm, the temperature is 32°C,
and the relative humidity is 95 percent. This air is to be
conditioned to 24°C and 60 percent relative humidity.
a) Determine the amount of cooling, in kJ, required and
b) Water removed, in kg, per 1000 m3 of dry air processed at the
entrance to the system.
Cooling coils Ti 32С ф,-95% т,-24°C φ2 60% l atm Condensate
Cooling coils Ti 32С ф,-95% т,-24°C φ2 60%...
Question 4 a. A vessel contains a gaseous mixture of composition by volume 80% H2, and 20% CO. It is desired that the mixture should be made in the proportion 50% H2 and 50% CO by removing some of the mixture and adding some Co. Calculate, per kilomole of mixture, the mass of mixture to be removed and the mass of CO to be added. The pressure and temperature in the vessel remain constant during the process. Take the molar...
(a) A vessel contains a gaseous mixture of composition by volume 80% H2, and 20% CO. It is desired that the mixture should be made in the proportion 50% H2 and 50% CO by removing some of the mixture and adding some CO. Calculate, per kilomole of mixture, the mass of mixture to be removed and the mass of CO to be added. The pressure and temperature in the vessel remain constant during the process. Take the molar mass of...
Please show work
11-43·Atmospheric air with a dry bulb temperature of 30°C and a relative humidity f 40 percent enters the cooling section of an air-conditioning system at a rate of 10 kg/s and is cooled to 18°C. Determine the volumetric flow rate of the air leaving the cooling section, the heat-transfer rate required for this process, and the entropy change of the air per unit mass of dry air. If the velocity of the airstream is not to exceed...
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...
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