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Exercise 3 Moist air at 1 atm. barometric pressure has a dry bulb temperature of 29...
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...
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...
Use a psychrometric chart to determine the properties of air under different conditions. 1-Find the properties...
Use a psychrometric chart to determine the properties of air under different conditions. 1-Find the properties of air at 70 degrees F and 50% relative humidity. Find humidity ratio, wet bulb temperature, dew point, enthalpy, and specific volume. 2-Find the properties of air at 55 degrees F and 30% relative humidity. Find humidity ratio, wet bulb temperature, dew point, enthalpy, and specific volume. 3-Air enters a furnace at a dry bulb temperature of 60 degrees F and 50% relative humidity...
What would be the dry bulb temperature, wet bulb temperature, dew point, percent saturation, enthalpy and...
What would be the dry bulb temperature, wet bulb temperature, dew point, percent saturation, enthalpy and humidity ratio would be if the following quantities of air were mixed: 1000 ft3 at 80°F and 70% saturated and 2500 ft3 at 100°F dry bulb and 87°F wet bulb temperature. Show your answer in a psychrometric chart and be sure to turn in your chart. 13)
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...
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...
Moist air is at 80F (26.67C) dry-bulb, 0.0150 lb-w/lb-da (0.0150 kg-w/kg-da) humidity ratio, pressure of 14.696...
Moist air is at 80F (26.67C) dry-bulb, 0.0150 lb-w/lb-da (0.0150 kg-w/kg-da) humidity ratio, pressure of 14.696 psia (101.35 kPa). Determine the dew-point temperature, relative humidity, volume in cu ft/lb-da (cu meters/kg-da), and enthalpy in Btu/lb-da (kJ/kg-da) using the moist air property tables and the ideal gas equations. What error is incurred using the ideal gas approach? Compare these results with the psychrometric charts (available in ASHRAE Fundamentals)
On the psychrometric chart provided mark clearly the point for air with a dry bulb temperature...
On the psychrometric chart provided mark clearly the point for
air with a
dry bulb temperature of 30oC and a Percentage Saturation
of 80%.
At this air condition, by referring to the same chart, what are the
values of
wet bulb temperature, specific volume, moisture content in kg/kg
(dry air)
and enthalpy.
If the air is air-conditioned to 15oC dry bulb and a
Percentage Saturation of
60, what is the associated enthalpy drop.
NAT BEBE Reduced scale CIBSE psychrometric chart...
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...
THERMODYNAMICS PROBLEM 1. Explanation and concept question Under what conditions, if any, the mass fractions and...
THERMODYNAMICS PROBLEM
1. Explanation and concept question Under what conditions, if any, the mass fractions and mole fractions of a mixture would be the same? а. (1 Mark) b A moist air sample undergoes a purely humidification process (increase in specific humidity only). Which one of the following properties will increase, decrease, or not change; relative humidity, wet bulb temperature, dry bulb temperature, and enthalpy of the moist air sample. The dry bulb temperature, the relative humidity, total pressure, and...
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...
What would be the dry bulb temperature, wet bulb temperature, dew point, percent saturation, enthalpy and humidity ratio would be if the following quantities of air were mixed: 1000 ft3 at 80°F and 70% saturated and 2500 ft3 at 100°F dry bulb and 87°F wet bulb temperature. Show your answer in a psychrometric chart and be sure to turn in your chart. 13)
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 the psychrometric chart provided mark clearly the point for
air with a
dry bulb temperature of 30oC and a Percentage Saturation
of 80%.
At this air condition, by referring to the same chart, what are the
values of
wet bulb temperature, specific volume, moisture content in kg/kg
(dry air)
and enthalpy.
If the air is air-conditioned to 15oC dry bulb and a
Percentage Saturation of
60, what is the associated enthalpy drop.
NAT BEBE Reduced scale CIBSE psychrometric chart...
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...
THERMODYNAMICS PROBLEM
1. Explanation and concept question Under what conditions, if any, the mass fractions and mole fractions of a mixture would be the same? а. (1 Mark) b A moist air sample undergoes a purely humidification process (increase in specific humidity only). Which one of the following properties will increase, decrease, or not change; relative humidity, wet bulb temperature, dry bulb temperature, and enthalpy of the moist air sample. The dry bulb temperature, the relative humidity, total pressure, and...
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