Air is flowing in the wind tunnel in the laboratory. The temperature in the laboratory is 22°C and the height of the column of mercury in the barometer in the laboratory is 634 mm. The liquid in the manometer being used to measure the vacuum in the wind tunnel is oil having a specific gravity of 0.826, and the manometer reading is 125 mm . The wind tunnel is on the CU campus in Denver where g = 9.796 m/s². a) Find the atmospheric pressure of the air in the laboratory (answer: 84092 Pa). b) Find the absolute pressure of the air in the wind tunnel (answer: 83081 Pa). c) Find the density of the air in the wind tunnel (answer: 0.981 kg/m³).

Air is flowing in the wind tunnel in the laboratory. The temperature in the laboratory is 22°C and the height of the column of mercury in the barometer in the laboratory is 634 mm. The liquid in the manometer being used to measure the vacuum in the wind tunnel is oil having a specific gravity of 0.826, and the manometer reading is 125 mm . The wind tunnel is on the CU campus in Denver where g = 9.796 m/s². a) Find the atmospheric pressure of the air in the laboratory (answer: 84092 Pa). b) Find the absolute pressure of the air in the wind tunnel (answer: 83081 Pa). c) Find the density of the air in the wind tunnel (answer: 0.981 kg/m³).

Name: Air is flowing in the wind tunnel in the laboratory. The temperature
Uploaded: 2024-03-20T06:56:55.000Z
Channel: Bartleby
Description: Air is flowing in the wind tunnel in the laboratory. The temperature in thelaboratory is 22°C and the height of the column of mercury in the barometer in thelaboratory is 634 mm. The liquid in the manometer being used to measure thevacuum in the win

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

Freshwater and seawater flowing in parallel horizontal pipelines are connected to each other by a double U-tube manometer, as shown. Determine the pressure difference between the two pipelines. Take the density of seawater at that location to be ? = 1035 kg/m3. Can the air column be ignored in the analysis?
When measuring small pressure differences with a manometer, one arm of the manometer may be inclined to improve the accuracy of the reading. (The pressure difference is still proportional to the vertical distance and not the actual length of ghr fluid along the tube.) The air pressure in a circular duct is to be measured using a manometer whose open arm is inclined 25 degrees from horizontal. The density of the fluid in the manometer is 900 kg/m³, and the vertical distance between the fluid levels in the two arms of the manometer is 7.8 inches. Determine the gauge pressure of the air in the duct and the length of the fluid column in the inclined arm above the fluid level in the vertical arm.
If it is known that the air velocity in the duct is 750 ft/s, usethe mercury manometer measurement in Fig. to estimatethe static pressure in the duct in lbf/in2 absolute.
A capillary tube is immersed vertically in a water container. Knowing that water starts to evaporate when the pressure drops below 3.5 kPa, determine the maximum capillary rise and tube diameter for this maximum-rise case. Take the contact angle at the inner wall of the tube to be 6° and the surface tension to be 1.00 N/m. Find the tube diameter for the maximum rise (in μm.)
The two-fluid U-tube manometer is being used to measure the difference in pressure in a line containing air at 1atm abs pressure. The value of R0 = 0 for equal pressures. The lighter fluid is a hydrocarbon with a density of 812 kg/m3 and the heavier water has a density of 998 kg/m3. The inside diameters of the U tube and reservoir are 3.2mm and 54.2 mm, respectively. The reading R of the manometer is 117.2 mm. Calculate the pressure difference inmmHg and Pa.
Compare the pressure of 30 kg of air in a vessel of temperature 300 K and volume 8 m3 by considering real gas and perfect gas.
An unknown gas is flowing through a venturi meter whose diametersas shown. Gage pressures are measured 12.2 psia at the entranceand 11.8 psia at the throat. Take the density to be 0.105 lb/ft3.Determine the following: a) Neglecting friction, the volume flow rate of air b) If the pressure gauge is replaced with a manometer withmercury as its medium (SG=13.6), what will be the height ofthe mercury in inches? Draw the most possible orientationof the manometer and its fluid height.
Freshwater and seawater flowing in parallel horizontal pipelines are connected to each other by double U-tube manometer, asshown. Determine the pressure difference between the two pipelines. Take the density of seawater at the location to be 1035 kg/m3. Can the air column be ignored in the analysis?
The pressure and temperature of the vessel is 380 KPa and 60 degrees celcius, what is the density of air in kg/m3? (neat handwritten)
The pressure on the suction side of pumps is typically low, and the surfaces on that side of the pump are susceptible to cavitation, especially at high fluid temperatures. If the minimum pressure on the suction side of a water pump is 0.51 psia absolute, determine the maximum water temperature to avoid the danger of cavitation. Find the maximum water temperature to avoid the danger of cavitation (in ºF).
Pipe A contains gasoline (SG = 0.7), pipe B contains oil (SG = 0.9), and the manometer fluid is ,ercury. Determine the new differential reading if the pressure in pipe A is decreased 25 kPa, and the pressure in pipe B remains constant. The initial differential reading is 0.30 m. (Hydrostatic)
In a water distribution system, the temperature of water is observed to be as high as 30°C. Determine the minimum pressure allowed in the system to avoid cavitation.