Find the densities of humid air at 25 oC DBT when it is at 20% relative...
Find the densities of humid air at 25 oC DBT when it is at 20% relative humidity and then when it is at 23 oC DBT and standard atmospheric pressure. [Calculate by
Equation first considering standard barometric pressure, 1 kg of dry air and R = 287.1 then use the psychrometric chart].
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Find the densities of humid air at 25 oC DBT when it is at 20%
relative...
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...
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)
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)
Problem 7 O/5 points (0%) Humid air at 1 atm, 42 °C dry bulb and 55 % relative humidity is cooled...
Problem 7 O/5 points (0%) Humid air at 1 atm, 42 °C dry bulb and 55 % relative humidity is cooled at constant pressure to a temperature 9 °C below its dew-point temperature. Sketch the psychrometric diagram for the process and determine the heat transfer from the air o kJ/kg dry air Cooling coils T2 φ2 T1 ф! 101.3 kPa i H-4」+'Condensate Condensate removal Now Problem (resets attempts) Resets Remaining: 10 Attempts Remaining: 10 Submit
Problem 7 O/5 points (0%)...
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...
Air is at 1 atm, 40°C, and 20 percent relative humidity. Water at 22°C is evaporated...
Air is at 1 atm, 40°C, and 20 percent relative humidity. Water
at 22°C is evaporated into this air to produce air at 25°C and 80
percent relative humidity. How much water, in kg H2O/kg dry air, is
required and how much cooling, in kJ/kg dry air, has been produced?
Use data from the tables.
Please help solve the amount
of cooling produced. I believe I am reading the psychrometric chart
incorrectly
Water T c Humidifier 1 atm 40? 20%...
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.
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...
Humid air at 101 kPa, 25°C, 90% relative humidity is compressed in a steady-flow, isentropic compressor...
Humid air at 101 kPa, 25°C, 90% relative humidity is compressed in a steady-flow, isentropic compressor to 800 kPa. (a) What is specific humidity of the air? (b) What is the relative humidity of the air exiting the compressor? (c) What is the change in enthalpy of the dry air during this process? (d) What is the change in enthalpy of the water vapor, per unit dry air, during this process? Express your answer in kilojoules per kilogram of dry...
Question NO. 3 (25 points) A space to be maintained at 27°C dry-bulb temperature has a rate of sensible-heat gain of 13 kW and a rate of latent heat gain of 8.5 kW. The system used to condition t...
Question NO. 3 (25 points) A space to be maintained at 27°C dry-bulb temperature has a rate of sensible-heat gain of 13 kW and a rate of latent heat gain of 8.5 kW. The system used to condition the space to the required conditions. The mass flow rate of air supplied to the space is 1.1 kg/s. Outdoor air at 38 °C dry-bulb temperature and 17 ℃ dew-point temperature is introduced into the system at a rate of 0.28 kg/s....
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)
Problem 7 O/5 points (0%) Humid air at 1 atm, 42 °C dry bulb and 55 % relative humidity is cooled at constant pressure to a temperature 9 °C below its dew-point temperature. Sketch the psychrometric diagram for the process and determine the heat transfer from the air o kJ/kg dry air Cooling coils T2 φ2 T1 ф! 101.3 kPa i H-4」+'Condensate Condensate removal Now Problem (resets attempts) Resets Remaining: 10 Attempts Remaining: 10 Submit
Problem 7 O/5 points (0%)...
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...
Air is at 1 atm, 40°C, and 20 percent relative humidity. Water
at 22°C is evaporated into this air to produce air at 25°C and 80
percent relative humidity. How much water, in kg H2O/kg dry air, is
required and how much cooling, in kJ/kg dry air, has been produced?
Use data from the tables.
Please help solve the amount
of cooling produced. I believe I am reading the psychrometric chart
incorrectly
Water T c Humidifier 1 atm 40? 20%...
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...
Question NO. 3 (25 points) A space to be maintained at 27°C dry-bulb temperature has a rate of sensible-heat gain of 13 kW and a rate of latent heat gain of 8.5 kW. The system used to condition the space to the required conditions. The mass flow rate of air supplied to the space is 1.1 kg/s. Outdoor air at 38 °C dry-bulb temperature and 17 ℃ dew-point temperature is introduced into the system at a rate of 0.28 kg/s....
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