Air enters a cooling tower at a rate of 1100 cubic meters per minute, at 15°C and65% relative humidity. Atmospheric pressure is 100 kPa. Water enters the tower at38°C and leaves at 17°C. Air leaves the tower at 31°C and saturated. Using apsychrometric chart calculate the absolute humidity of the air leaving the coolingtower.0.029 kg water vapour/kg air0.069 kg water vapour/kg airO 0.0101 kg water vapour/kg air0.364 kg water vapour/kg air

According to the problem, air enters the tower at 65% relative humidity at 15oC, and leaves the…

Air enters a cooling tower at a rate of 1100 cubic meters per minute, at 15°C and 65% relative humidity. Atmospheric pressure is 100 kPa. Water enters the tower at 38°C and leaves at 17°C. Air leaves the tower at 31°C and sațurated. Using a psychrometric chart calculate the absolute humidity of the air leaving the cooling tower. 0.029 kg water vapour/kg air 0.069 kg water vapour/kg air 0.0101 kg water vapour/kg air O 0.364 kg water vapour/kg air

Air enters a cooling tower at a rate of 1100 cubic meters per minute, at 15°C and 65% relative humidity. Atmospheric pressure is 100 kPa. Water enters the tower at 38°C and leaves at 17°C. Air leaves the tower at 31°C and sațurated. Using a psychrometric chart calculate the absolute humidity of the air leaving the cooling tower. 0.029 kg water vapour/kg air 0.069 kg water vapour/kg air 0.0101 kg water vapour/kg air O 0.364 kg water vapour/kg air

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A sample of outdoor air (Point 1) has a dry- bulb and dewpoint temperature of 32°C and 24°C, respectively. It is mixed with another air (Point 2) with 50% relative humidity and a specific humidity of 0.0078 kgy/kga. If the mass of outdoor air (m1) amounts to 40% of the mixed air ( m3 ), determine: 1. Specific humidity at point 1 in kgy/kga- 2. Enthalpy at point 1 in kJ/kg. 3. Relative humidity at point 1 in %. 4. Dry-bulb temperature at point 2 in °C. 5. Enthalpy at point 2 in kJ/kg. 6. Specific volume of air at point 2 in m3/kg. 7. Dry-bulb temperature of the mixture (point 3) in °C. 8. Specific humidity of the mixture (point 3) in kgy/kga- 9. Enthalpy of the mixture (point 3) in kJ/kg. 10. Dewpoint temperature of the mixture (point 3) in °C.
At an altitude of 1,600m, the atmospheric pressure is 81.49kPa. What is the specific humidity and relative humidity at this altitude when the dry and wet bulb temperatures are measured to be 10ºC and 5ºC respectively? Note, due to the low atmospheric pressure at 1,600m, the 1atm psychrometric chart is not valid for this problem. You will receive no points if you use it Result Relative humidity should be greater then 1 if we use 1600m altitude in solution not 1 atm
After reaching saturation, if the room continues to cool to a temperature of 1.2 \deg C, how many grams of water vapor (per kg of air) will have had to condense out of the air to maintain a relative humidity of 100 %? g/Kg
the maximum amount of water vapor in air at 20c is 15.0 g/kg. If the relative humidity is 60%, what is the specific humidity of this air?
Ambient air is at a pressure of 100 kPa, dry bulb temperature of 300C and 60% relative humidity. The saturation pressure of water at 300C is 4.24 kPa. The specific humidity of air (in g/ kg of dry air) is (correct to two decimal places).
Proper indoor ventilation is important to lower the risk of infection from the SARS-CoV-2 virus. The air in a room (28.0°C and 30% humidity) with a volume of 96.6 m3 must be replaced every 5 minutes. Outside air at 38.0°C and 70% humidity is chilled to remove some of its water content and then dehumidified to the required temperature. What is the volumetric flow rate (in m3/min) of the humid air entering the chiller? How many kg of water per kg of dry air is removed from the dehumidification process? To what temperature (in °C) should the outside air be chilled?
Air enters the heating section of an air-conditioning at 1atm, 10C, and 70 percent relative humidity at a rate of 35m^3/min, and it leaves the humidifying section at 20C with a relative humidity of 90 percent. If the humidifier supplies wet steam at 100C, determine: The temperature and relative humidity of the air leaving the heating section The rate of heat transfer in the heating section
room contains air at 30 degrees * C and a total pressure of 96.0 kPa with a relative humidity of 75 percen ermine (a) the partial pressure of dry air and (b) the specific humidity.
Inside a building, the temperature is −5°C, and the relative humidity is 31 percent. How much water vapor (in kg) is there in each cubic meter of air?
Humid air flows in a duct at atmospheric pressure. The temperature and relative humidity are T_db=34℃, T_wb=26℃. Add the point on the attached chart and complete the other properties of this humid air in the table below:
Moist air at 32 degrees Cdb and relative humidity of 60% enter a refrigeration system with a flow rate of 90 kg/min. Saturated air at 15 degrees Cdb leaves the system. Calculate the heat and moisture removed in kW and kg/s respectively.
ASHRAE standard 55, Thermal Environmental Conditions for Human Occupancy, notes that for thermal comfort purposes, the indoor temperature should range from approximately 67ºF to 82°F (19.4ºC to 27.8ºC), and systems designed to control humidity must be able to maintain a dew-point temperature of 16.8°C (62.2°F). ASHRAE standard 62.1, Ventilation and Acceptable Indoor Air Quality, recommends that relative humidity in occupied spaces be controlled to less than 65% to reduce the likelihood of conditions that can lead to microbial growth. Determine the minimum allowable indoor temperature that will ensure a humidity control system designed according to ASHRAE standard 55 will also satisfy the humidity requirements of standard 62.1