Q2) Air is supplied to an automobile cabin from the outside, where the temperature is 20Fand the relative humidity is 70%. It is desired to keep the cabin at 70F and Ø = 60%.Hoe many pounds of water must be supplied to each pound of air entering the carcabin if these conditions are to be met? The barometric pressure is 29.5 in.Hg.%3DAns. (0.00797 lbs/Ibdry air)

Answered: Image /qna-images/answer/5bc10782-eb71-4cb0-89c7-63c0262a6e3e.jpg

Q2) Air is supplied to an automobile cabin from the outside, where the temperature is 20F and the relative humidity is 70%. It is desired to keep the cabin at 70F and Ø = 60%. many pounds of water must be supplied to each pound of air entering the car cabin if these conditions are to be met? The barometric pressure is 29.5 in.Hg. %3D Hoe Ans. (0.00797 Ibs/Ibdry air)

Q2) Air is supplied to an automobile cabin from the outside, where the temperature is 20F and the relative humidity is 70%. It is desired to keep the cabin at 70F and Ø = 60%. many pounds of water must be supplied to each pound of air entering the car cabin if these conditions are to be met? The barometric pressure is 29.5 in.Hg. %3D Hoe Ans. (0.00797 Ibs/Ibdry 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

On a summer day in Houston, the temperature is 25 degrees Celsius and the relative humidity is 76 percent. What is the humidity? (kg/m3)
You are to spray an 80-acre field that will be planted to alfalfa with 32 oz/ac Roundup, 1.5 pints/ac of Treflan, and 17lbs AMS/100 gallon spray. If your sprayer is calibrated to apply 10GPA carrier volume and holds 800-gallons how much AMS do you need to add to your sprayer to condition your water, and how many gallons of Roundup and Treflan do you need to add to your sprayer so that you apply the proper rate?
Given that Initial Temperature = 28.5 deg C, Dew Point = 9 deg C, Dry Bulb = 30 deg C, Wet Bulb = 28 deg C, Saturation Pressure = 1.148 kPa Calculate the following: Humidity Ratio w = 0.622PsPt-Ps=0.622PsPa kg water/kg air Partial pressure of water vapour where: Ps = partial pressure of water vapour (Psat at dewpoint temperature ) w = humidity ratio Pt = total pressure (standard atmospheric pressure) Pt = Pa + Ps Pa = partial pressure of dry air = Pt - Ps 3. Relative Humidity RH = PsPd 4. v = RaTPa m3/kg 5. ω = 1vkg/m3 where: Pd = saturation pressure at room temperature (from steam table) ω = density of air v = specific volume of dry air T = absolute temperature of room temperature Ra = gas constant of air =0.28706 kJ/kg-K
Please explain how did it become 8 percent explain the calculation
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?
2. The absolute humidity at atmospheric pressure at 40 ° C is 0.011 kg air / kg dry air. Specify: A. Air vapor partial pressure. = AnswerkPa. b. Relative humidity = Answer% c. Dew point temperature. = Answer (° C)
which of the following properties is NOT true about moist air at standard condition which is at a dry bulb temperature of 340C and humidity ratio of 10g w/kg da ? 1. the relative humidity of the air is about 30% 2. The enthalpy of the air is about 55kj/kg 3.The specific volume of the air is about 0.884 m3/kg 4.The dew point temperature of the air is about 140C
Considering a volume of air that is saturated, which of the following statements is NOT necessarily true: the water vapor pressure is equal to the atmospheric pressure the dew point temperature is equal to the air temperatures the relative humidity is 100%
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:
An air conditioner consists of heating and evaporative cooling sections. The air, where the atmospheric pressure is 101.325 kPa, enters the heating section at 20 °C and 30% relative humidity with a flow rate of 35 m3/min, and exits from the evaporative cooling section at 25 °C and 60% relative humidity. a) The temperature and relative humidity of the air leaving the heating section.b) The amount of heat transfer per unit time to the air in the heating sectionc) Calculate the mass of water added to the air per unit time in the evaporative cooler.d) In order to prevent condensation on the glasses of a person with glasses entering such an environment, what should the temperature of the glasses glass be?
which of the following properties is NOT true about moist air at standard condition which is at a dry bulb temperature of 340C and humidity ratio of 10g w/kg da ? 1. the relative humidity of the air is about 30% 2. The enthalpy of the air is about 55kj/kg 3.The specific volume of the air is about 0.884 m3/kg 4.The dew point temperature of the air is about 140C
At 1:00 PM a thermometer reading 70°F is taken outside where the air temperature is −10°F (10 below zero). At 1:02 PM, the reading is 26°F. At 1:05, the thermometer is taken back indoors where the temperature is at 70°F. What is the thermometer reading at 1:09 PM?