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Problem 5: On a bitter cold, snowy morning, the air re and dew point of the outside air are -7 °C...
On a particular day the room temperature was 300 C and the dew point was observed to be 200 C, and the relative humidity...
On a particular day the room temperature was 300 C and the dew point was observed to be 200 C, and the relative humidity was 80%. With the aid of an air conditioner if a part of the water vapor was removed, and then the relative humidity was 40% and the temperature was 200 C. Suddenly if the due to a power failure the Air conditioner stops working and the temperature rises to 300 C. If no water vapor could...
Air that is at its dew point of 5 degree C is drawn into a house...
Air that is at its dew point of 5 degree C is drawn into a house where the temperature is 20 degree C. What is the relative humidity at this temperature? Assume a constant pressure of 1 atm.
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%)...
Problem 5 (20 pts). On a cold winter morning the ambient temperature is about -5°C and...
Problem 5 (20 pts). On a cold winter morning the ambient temperature is about -5°C and the pressure of the water vapor hovers at about 2.66 mbar. You get in your car and there's frost in the glass. Is this frost going to disappear from your car's window? At the triple point the pressure of water is 0.006 bar and ΔHsublimation-51 kJ/mol. Up to what vapor pressure can the frost remain?
Problem2 (a) Suppose outside temperature is 55 °F while the temperature inside a building is 72 F. The building is heated but not air conditioned, so the partial pressure of water vapor is the sa...
Problem2 (a) Suppose outside temperature is 55 °F while the temperature inside a building is 72 F. The building is heated but not air conditioned, so the partial pressure of water vapor is the same both inside and outside the building. Finally, suppose the dew point outside is 40°F What is the dew point inside? What are the relative humidities inside and outside the building? (We are most comfortable if relative humidity is between 30% and 50%-This question shows why...
Please show clear working Qn.7. Adiabatic mixing 300 m3/min of fresh air at 30 °C DBT...
Please show clear working
Qn.7. Adiabatic mixing 300 m3/min of fresh air at 30 °C DBT and 50% RH is to be mixed with 800 m3/min of recirculated air at 22 °C DBT and 10 °C wet bulb temperature. Determine the (1) enthalpy, (2) specific volume, (3) relative humidity, (4) dry-bulb temperature and (5) dew point temperature of the mixture. Ans. [(1) 38.24 kJ/kg, (2) 0.849 m/kg (3) 29%, (4) 24.2 °C, (5) 5°C]
Which of the following listed locations has the highest precipitation? 12 13 1 15 10 a. 17 18 9 1...
Which of the following listed locations has the highest precipitation? 12 13 1 15 10 a. 17 18 9 19 5,200 Kilometers 3 2 The clouds in the picture are clouds. Photo: Lin Wu Cirrus Cumulus Stratus Question 3 The lack of Coriolis Effect along the equator resulted no lasting wind along the equator. low pressure along the equator. upper rising air along the equator high temperature along the equator. Question 4 You will need the vapor pressure curve and...
Uestion 2 Moist air, saturated at 5°C, enters a heating coil at a rate of 10 m'/s. Air leaves the...
uestion 2 Moist air, saturated at 5°C, enters a heating coil at a rate of 10 m'/s. Air leaves the coil with of h2-50 kJ/kgda. i an enthalpy a) Find each of the initial and final states the dry and wet temperatures, dew point, relative humidity, humidity ratio, specific volume. b) Imagine a simple transformation to reach a dry temperature of 25°C and a relative humidity of 50%. What is the nature of this transformation? What is the required heat...
Problem 1: Air at 100 degrees Celsius, 1 atm and a free stream velocity of 5...
Problem 1: Air at 100 degrees Celsius, 1 atm and a
free stream velocity of 5 m/s flows over a 3 meter long, thin, flat
plate of naphthalene, causing it to sublime...
Please answer all parts
Problem 1. (20 Points) Air at 100°C, 1 atm, and a free-stream velocity of 5 m/s flows over a 3- m-long, thin, flat plate of naphthalene, causing it to sublime. (a) Determine the length over which a laminar boundary layer persists. (b) For that...
System Model: Automotive Air Conditioning System Outside Air Temp: 45 oC Car Interior Air Temp: 22...
System Model: Automotive Air Conditioning System Outside Air Temp: 45 oC Car Interior Air Temp: 22 oC Heat Load = 4.2 kJ/sec rate at which heat must go in to the air conditioner to be removed from the car’s interior Refrigerant: R134a HINT: Heat enters an air conditioning system where? Refrigerant 134a … - leaves the evaporator coil and enters the compressor as a saturated vapor at the evaporator pressure of 2.8 bars. - It leaves the compressor at...
Air that is at its dew point of 5 degree C is drawn into a house where the temperature is 20 degree C. What is the relative humidity at this temperature? Assume a constant pressure of 1 atm.
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%)...
Problem 5 (20 pts). On a cold winter morning the ambient temperature is about -5°C and the pressure of the water vapor hovers at about 2.66 mbar. You get in your car and there's frost in the glass. Is this frost going to disappear from your car's window? At the triple point the pressure of water is 0.006 bar and ΔHsublimation-51 kJ/mol. Up to what vapor pressure can the frost remain?
Problem2 (a) Suppose outside temperature is 55 °F while the temperature inside a building is 72 F. The building is heated but not air conditioned, so the partial pressure of water vapor is the same both inside and outside the building. Finally, suppose the dew point outside is 40°F What is the dew point inside? What are the relative humidities inside and outside the building? (We are most comfortable if relative humidity is between 30% and 50%-This question shows why...
Please show clear working
Qn.7. Adiabatic mixing 300 m3/min of fresh air at 30 °C DBT and 50% RH is to be mixed with 800 m3/min of recirculated air at 22 °C DBT and 10 °C wet bulb temperature. Determine the (1) enthalpy, (2) specific volume, (3) relative humidity, (4) dry-bulb temperature and (5) dew point temperature of the mixture. Ans. [(1) 38.24 kJ/kg, (2) 0.849 m/kg (3) 29%, (4) 24.2 °C, (5) 5°C]
Which of the following listed locations has the highest precipitation? 12 13 1 15 10 a. 17 18 9 19 5,200 Kilometers 3 2 The clouds in the picture are clouds. Photo: Lin Wu Cirrus Cumulus Stratus Question 3 The lack of Coriolis Effect along the equator resulted no lasting wind along the equator. low pressure along the equator. upper rising air along the equator high temperature along the equator. Question 4 You will need the vapor pressure curve and...
uestion 2 Moist air, saturated at 5°C, enters a heating coil at a rate of 10 m'/s. Air leaves the coil with of h2-50 kJ/kgda. i an enthalpy a) Find each of the initial and final states the dry and wet temperatures, dew point, relative humidity, humidity ratio, specific volume. b) Imagine a simple transformation to reach a dry temperature of 25°C and a relative humidity of 50%. What is the nature of this transformation? What is the required heat...
Problem 1: Air at 100 degrees Celsius, 1 atm and a
free stream velocity of 5 m/s flows over a 3 meter long, thin, flat
plate of naphthalene, causing it to sublime...
Please answer all parts
Problem 1. (20 Points) Air at 100°C, 1 atm, and a free-stream velocity of 5 m/s flows over a 3- m-long, thin, flat plate of naphthalene, causing it to sublime. (a) Determine the length over which a laminar boundary layer persists. (b) For that...
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