Q1/In a vessel at 1bar and 300K, the humidity of air is equal (0.0068 Kg H₂O/ Kg dry air) and humidityof saturated air equal (0.0282 Kg H₂O/Kg dry air). Calculate:-1- Percentage humidity2- Percentage relative humidity3- Humid heat[30 Mark]

Detailed explanation: To solve the problem provided, we need to calculate the following based on the…

Answered: Q1/ In a vessel at 1bar and 300K, the…

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

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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:
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Humid air flows in a duct at atmospheric pressure. The dry bulb temperature and humidity ratio are 80℉ and ω=0.011 (lbm water)/(lbm dry air) Add the point on the attached chart and complete the other properties of this humid air in the table below:
Calculate the make up rate of the water by doing a material balance between the water stream and the air stream. Show your steps of calculation. (Attached are the datasets)
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Calculate (a) the specific volume, (b) the enthalpy, and (c) the absolute humidity of the air at 40 ° C and the relative humidity of 49%, at a barometric pressure of 770 mm Hg. a) specific volume = .... m³ / kg b) enthalpy = ... (kj / kg air) c) absolute humidity = .... (kg water / kg air)
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
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2) Determine the dew point of moist air at 80 F (27 C) and 60 percent relative humidity for pressures corresponding to sea level. Please use the psychometric chart to solve the following problems
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The absolute humidity at atmospheric pressure at 25 ° C is 0.011 kg water / kg dry air. Specify: a. partial pressure of water vapor = Answer kPa b. relative humidity = Answer% c. Dew point temperature = Answer (° C)
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Q1/ In a vessel at 1bar and 300K, the humidity of air is equal (0.0068 Kg H₂O/ Kg dry air) and humidity of saturated air equal (0.0282 Kg H₂O/Kg dry air). Calculate:- 1- Percentage humidity 2- Percentage relative humidity 3- Humid heat [30 Mark]