The air in a room has dry bulb temperatures of 27 ° C and 20 °...
The air in a room has dry bulb temperatures of 27 ° C and 20 ° C wet bulb. Determine the specific humidity and humidity relative considering a pressure of 100 kPa.
Homework Answers
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...
Known: Outside air temperatures of 85F dry bulb and 72F wet bulb Find: relative humidity from...
Known: Outside air temperatures of 85F dry bulb and 72F wet bulb Find: relative humidity from the psychrometric chart
(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...
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 pressure = 100 kPa Air temperature = 20 deg Wet-bulb (Dew Point) temperature = 16...
Air pressure = 100 kPa Air temperature = 20 deg Wet-bulb (Dew Point) temperature = 16 degC Find: - Vapor pressure - Relative humidity, - Specific humidity, - Air density
Exercise 3 Moist air at 1 atm. barometric pressure has a dry bulb temperature of 29...
Exercise 3 Moist air at 1 atm. barometric pressure has a dry bulb temperature of 29 C and a wet bulb temperature of 22°C. Using the psychrometric chart and the table for saturated vapor find the following air properties: Pr T- 40 a) the partial pressure of the water vapor b) humidity ratio c) relative humidity d) dew-point temperature e) specific volume ) enthalpy of moist air
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...
the result of air measurements obtained dry bulb temperature 48 C and wet bulb temperature 29...
the result of air measurements obtained dry bulb temperature 48 C and wet bulb temperature 29 C. By using a psychrometric chart, detemine the nature of air aa follows: a. air humidity (%) b. water content (kg water/ kg air) c. specific volume (m³/kg) d. enthalpy (kj/kg) e. condensation temperature (C) If air is in the room 162 m³, determine: f. air weight (dry air and water vapor) g. the amount of the water in the room (kg) pls help...
2- Air at 39.5 °C and humidity ratio of 9 (grams /kg dry air) is humidified...
2- Air at 39.5 °C and humidity ratio of 9 (grams /kg dry air) is humidified adiabatically to 70% relative humidity (sea-level pressure). Liquid water is supplied at 70 °C for humidification (hf = 293 kJ/kg, hg = 2626.1 kJ/kg) Determine: a) The initial wet bulb temperature b) The initial relative humidity c) The initial density d) The final wet bulb temperature e) The final density f) The final dry bulb temperature
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.
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...
Air pressure = 100 kPa Air temperature = 20 deg Wet-bulb (Dew Point) temperature = 16 degC Find: - Vapor pressure - Relative humidity, - Specific humidity, - Air density
Exercise 3 Moist air at 1 atm. barometric pressure has a dry bulb temperature of 29 C and a wet bulb temperature of 22°C. Using the psychrometric chart and the table for saturated vapor find the following air properties: Pr T- 40 a) the partial pressure of the water vapor b) humidity ratio c) relative humidity d) dew-point temperature e) specific volume ) enthalpy of moist air
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...
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.
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