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Problem 7 O/5 points (0%) Humid air at 1 atm, 42 °C dry bulb and 55 % relative humidity is cooled...
Name: QUESTION 1 [25 Points] Moist air enters an air conditioning system at a dry bulb...
Name: QUESTION 1 [25 Points] Moist air enters an air conditioning system at a dry bulb temperature T., 30 'C and relative humidity фі80% and exits at a dry bulb temperature T2 179C and relative humidity ф2.50% as shown in the figure below. The condensate exits the system at 15 °C. The mass flow rate of the dry air is 2.5 kg/s. Assume the air is at atmospheric pressure P-101.3 kPa. Cooling coils T-17 C 0-50 % Pp:-6.282 kPa Ti-30...
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%...
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...
QUESTION 4 Air at 25 C° and 1 atm has a relative humidity of 20%. Using...
QUESTION 4 Air at 25 C° and 1 atm has a relative humidity of 20%. Using the psychrometric chart, the absolute humidity is the wet bulb temperature is , dew point is , and humid volume is Note: Take care of units (write the unit)
Q 1: In an air conditioning system return air at 26°C dry-bulb temperature and 50% relative...
Q 1: In an air conditioning system return air at 26°C dry-bulb temperature and 50% relative humidity is mixed with outdoor ambient air at 34°C dry-bulb temperature and 60% relative humidity. The dry air mass flow rate of outdoor air is 30% of the supply air mass flow rate to the space. The pressure is constant at 101.3 kPa. Calculate (i) the enthalpy, (ii) the humidity ratio, and (ii) the dry-bulb temperature of the supply air. (i) Compare the results...
30 min Q3/ For humid air at (37'C) and (30%) relative humidity fill the following blanks...
30 min
Q3/ For humid air at (37'C) and (30%) relative humidity fill the following blanks with a suitable answers by using the Psychrometric chart:- S 1. The absolute humidity 2. The wet-bulb temperature 3. The humid volume 4. The Dew point 5. The specific enthalpy 6. The amount of water in (275 m) of air at these conditions - (15 Marks)
Exercise 2 Moist air at 1 atm. barometric pressure has a dry bulb temperature of 40°C...
Exercise 2 Moist air at 1 atm. barometric pressure has a dry bulb temperature of 40°C and a wet bulb temperature of 320C. Using both the equations for the moist air properties and the psychrometric chart find: g) the partial pressure of the water vapor h) humidity ratio i) relative humidity j) dew-point temperature k) specific volume 1) enthalpy of moist air Insert the data and the results from the chart in the following table: Enthalpy Specific kJ/kg m/kg Humidity...
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...
(10 pts) Six-thousand cubic feet per minutes (C.F.M.) of atmospheric air at 28°C (dry bulb) having...
(10 pts) Six-thousand cubic feet per minutes (C.F.M.) of atmospheric air at 28°C (dry bulb) having a wet bulb temperature of 23°C is to be cooled in an air conditioning system. The air conditioning system lowers the dry bulb temperature of the air to 20° C. Cooling with dehumidification is accomplished using chilled water loop. The chilled water enters the loop at 5°C at a rate of 280 kg/min and experience a 5°C temperature increase. The atmospheric pressure is 1...
2. An air conditioning system is to take in air at latm 33C, 70% relative humidity...
2. An air conditioning system is to take in air at latm 33C, 70% relative humidity and flow rate of 50m3/min and deliver it 23C and 60% relative humidity. The air first flows over the cooling coils, where it is cooled and dehumidified, and then over the resistance heating wires, where it is heated to the desired temperature. Assuming that the condensate is removed from the cooling section at 10C, determine: a) The temperature of the air before it enters...
Name: QUESTION 1 [25 Points] Moist air enters an air conditioning system at a dry bulb temperature T., 30 'C and relative humidity фі80% and exits at a dry bulb temperature T2 179C and relative humidity ф2.50% as shown in the figure below. The condensate exits the system at 15 °C. The mass flow rate of the dry air is 2.5 kg/s. Assume the air is at atmospheric pressure P-101.3 kPa. Cooling coils T-17 C 0-50 % Pp:-6.282 kPa Ti-30...
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 Air at 25 C° and 1 atm has a relative humidity of 20%. Using the psychrometric chart, the absolute humidity is the wet bulb temperature is , dew point is , and humid volume is Note: Take care of units (write the unit)
Q 1: In an air conditioning system return air at 26°C dry-bulb temperature and 50% relative humidity is mixed with outdoor ambient air at 34°C dry-bulb temperature and 60% relative humidity. The dry air mass flow rate of outdoor air is 30% of the supply air mass flow rate to the space. The pressure is constant at 101.3 kPa. Calculate (i) the enthalpy, (ii) the humidity ratio, and (ii) the dry-bulb temperature of the supply air. (i) Compare the results...
30 min
Q3/ For humid air at (37'C) and (30%) relative humidity fill the following blanks with a suitable answers by using the Psychrometric chart:- S 1. The absolute humidity 2. The wet-bulb temperature 3. The humid volume 4. The Dew point 5. The specific enthalpy 6. The amount of water in (275 m) of air at these conditions - (15 Marks)
Exercise 2 Moist air at 1 atm. barometric pressure has a dry bulb temperature of 40°C and a wet bulb temperature of 320C. Using both the equations for the moist air properties and the psychrometric chart find: g) the partial pressure of the water vapor h) humidity ratio i) relative humidity j) dew-point temperature k) specific volume 1) enthalpy of moist air Insert the data and the results from the chart in the following table: Enthalpy Specific kJ/kg m/kg Humidity...
(10 pts) Six-thousand cubic feet per minutes (C.F.M.) of atmospheric air at 28°C (dry bulb) having a wet bulb temperature of 23°C is to be cooled in an air conditioning system. The air conditioning system lowers the dry bulb temperature of the air to 20° C. Cooling with dehumidification is accomplished using chilled water loop. The chilled water enters the loop at 5°C at a rate of 280 kg/min and experience a 5°C temperature increase. The atmospheric pressure is 1...
2. An air conditioning system is to take in air at latm 33C, 70% relative humidity and flow rate of 50m3/min and deliver it 23C and 60% relative humidity. The air first flows over the cooling coils, where it is cooled and dehumidified, and then over the resistance heating wires, where it is heated to the desired temperature. Assuming that the condensate is removed from the cooling section at 10C, determine: a) The temperature of the air before it enters...
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