Figure 8.4-1 is provided:
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Figure 8.4-1 is provided:
Using the Psychrometric chart (Fig 8.4-1 in your Textbook or the attached...
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...
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...
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...
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...
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
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)
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)
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)
SKMM 2423 QUESTION 4 a) Cold water flows through a metal pipe, which is not insulated The pipe is loc ated in am am...
SKMM 2423 QUESTION 4 a) Cold water flows through a metal pipe, which is not insulated The pipe is loc ated in am ambient air, which is at a higher temperature and humidity, What do you think would be observed on the surface of the pipe? Describe briefly the reason for this 5 marks) b) A sling psychrometer shows a dry bulb and wet bulb temperature readings of 25°C and 20°C, respectively. The atmospheric pressure is 101 325 kPa. Using...
seperation process , show graph Questi (aho Question: An atmospheric direct heat dryer is to operate...
seperation process , show graph
Questi (aho Question: An atmospheric direct heat dryer is to operate with air containing water vapors entering at partial pressure of water i.e. 0.028 atm and vapor pressure of water i.e. 1.56 atm. From the psychrometric chart and relationships, determine the followings: 1) Wet bulb temperature (°F) Dew point Temperature (°F) Enthalpy (Btu per pound of dry air) Dry bulb temperature (°F) Humid volume (ft) from (both relationship and psychrometric chart) Humidity (grains of moisture...
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...
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...
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
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)
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)
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)
SKMM 2423 QUESTION 4 a) Cold water flows through a metal pipe, which is not insulated The pipe is loc ated in am ambient air, which is at a higher temperature and humidity, What do you think would be observed on the surface of the pipe? Describe briefly the reason for this 5 marks) b) A sling psychrometer shows a dry bulb and wet bulb temperature readings of 25°C and 20°C, respectively. The atmospheric pressure is 101 325 kPa. Using...
seperation process , show graph
Questi (aho Question: An atmospheric direct heat dryer is to operate with air containing water vapors entering at partial pressure of water i.e. 0.028 atm and vapor pressure of water i.e. 1.56 atm. From the psychrometric chart and relationships, determine the followings: 1) Wet bulb temperature (°F) Dew point Temperature (°F) Enthalpy (Btu per pound of dry air) Dry bulb temperature (°F) Humid volume (ft) from (both relationship and psychrometric chart) Humidity (grains of moisture...
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