1- A lecture hall has a volume of 10° ft' contains air at 70 "F, 1 atm and a humidity ratio of 0.01Ib of water vapor per lb of dry air. Using the appropriate equations, determine a) the relativehumidity, b) the dew point temperature, c) the enthalpy of the mixture per lb of dry air and d) themass of water vapor contained in the room, in Ib.

Given data, Volume of the lecture hall or volume of the air, V = 106 ft3 Dry bulb temperature of the…

Answered: 1- A lecture hall has a volume of 10°…

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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The figure shows a spray dryer operating at steady state. The mixture of liquid water and suspended solid particles entering through the spray head contains 30% solid particles by mass. Dry air enters at 177°C, 1 atm, and moist air exit at 85°C, 1 atm, and 21% relative humidity with a volumetric flow rate of 310 m3/min. The dried particles exit separately. Determine: the volumetric flow rate of the entering dry air, in m3/min. the rate that dried particles exit, in kg/min.
Last Oct. 3rd, the temperature in Quezon City was 81°F, the barometric pressure was 29.8 in, and the relative humidity was 90%. Estimate the following: a) mole fraction of water in the air (4 decimal places) b) dew point (°C) (4 decimal places) c) molal humidity (4 decimal places) d) absolute humidity(4 decimal places) e) percentage humidity (4 decimal places).
Select two saturated and two unsaturated samples of air from the dataset of pressure and temperature given below: Pressure (mb): 10, 20, 30 Temperature (°C): 10, 20, 30 Let A and B be two air samples, where A: (T=30°C, P=25 mb) and B: (T=30°C, P=30 mb). For each sample, determine the following: a. Saturation vapor pressure b. Dew point c. Relative humidity d. If samples A and B were cooled to 15°C. What would be their relative humidity? What would be their dew point temperature?
Last night, the temperature was 82°F, the barometric pressure was 29.8 in, and the relative humidity was 83%. Estimate the following: a) mole fraction of water in the air b) dew point (°C) c) molal humidity d) absolute humidity e) percentage humidity.
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
Psychometry Termal Certain air that is 80 ° F and an atmosphere has a dew point temperature of 40 ° F. Calculate the relative humidity of this air. If the mixture is brought to 2 atmospheres and 58 ° F, what will the resulting air humidity be?
HVAC UPVOTE WILL BE GIVEN. PLEASE WRITE THE COMPLETE SOLUTIONS. PLEASE ANSWER ALL THE SUBQUESTON WITH USING THE PSYCHOMETRIC CHART. SHOW THE DRAWING/DIAGRAM. 2. Air at 26°C db & 20°C WB Determine the following: a. RH (Relative Humidity) b. DPT (Due Point Temperature) c. V (Specific Volume) d. h (Enthalpy) e. HR (Humidity Ratio)
Two streams of air, (A(1.5 m3/s): Absolute humidity = 24 g water/ kg dry air & RH= 60% and B(1.5 m3/s): T db =19 °C & RH = 80 %) mix together. We want to heat this mix air by a heater up to 50 °C. What is the power of heater approximately?
Example 1: Moist air at 32C db, 24C wb. Determine: - Relative humidity RH, Dew temperature, Specific humidity .
HVAC UPVOTE WILL BE GIVEN. PLEASE WRITE THE COMPLETE SOLUTIONS. PLEASE ANSWER ALL THE SUBQUESTON WITH USING THE PSYCHOMETRIC CHART. SHOW THE DRAWING/DIAGRAM. 5. Air at 20°C db & DPT 20°C Determine the following: a. RH (Relative Humidity) b. DPT (Due Point Temperature) c. V (Specific Volume) d. h (Enthalpy) e. HR (Humidity Ratio)
Please solve the following question: A TV announcer says that the dew point is 92 F. If you compress the air to 110°F and 2 psig, what is the percent relative humidity?
RH = 20% , absolute humidity = 10.5 g/kg Determine the air properties using the psychrometric chart (show solution manually) . Plot the given air properties in the chart make appropriate projections to determine the other air properties.

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