A fan draws air from the atmosphere through a 0.3 m diameter round duct that has a smoothly rounded entrance. A differential manometer connected to an opening in the wall of the duct shows a vacuum pressure of 2.5 cm of water. The density of air is 1.22 kg/m3.
(a) Determine the volume rate of air flow in the duct in cubic feet per second.
(b) What is the power of the fan?
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A fan draws air from the atmosphere through a 0.3 m diameter round duct that has a smoothly round...
2. (10 points) A uniform air flow in a duct of 10 cm diameter is connected...
2. (10 points) A uniform air flow in a duct of 10 cm diameter is connected a manometer using working fluid of specific gravity of 0.7. The square well of the slant-tube manometer is sufficiently large that the elevation of the manometer fluid in it does not change T-200 significantly when fluid moves up in the leg of the manometer. When there is no flow in the duct, the liquid surface in the manometer les at 2.3 cm measured on...
hair dryer may be idealized as a circular duct through which a small fan draws ambient...
hair dryer may be idealized as a circular duct through which a
small fan draws ambient air and within which the air is heated as
it flows over a coiled electric resistance wire.
(1) If a dryer is designed to operate with an electric power
consumption of Pelec= 1500 W and to heat air from an ambient
temperature of Ti= 20°C to a discharge temperature of To= 45°C, at
what volumetric flow rate ∀˙ should the fan operate? Heat loss...
10.00 points Air 129 MPa and 334 Kows upward through a 0.084-m-diameter inclined duct at a...
10.00 points Air 129 MPa and 334 Kows upward through a 0.084-m-diameter inclined duct at a rate of 65 USThe duct diameter is then reduced to 0.064 m through a reducer. The pressure change across the reduceris measured by a water manometer. Determine the differential height between the fluid levels of the two arms of the manometer in centimeters The oferential height between the fuld levels of the two arms Hints esc 80 888
part a-d 2 A paint sprayer pumps air through a constriction in a 0.025- m diameter pipe, as shown in the figure. The flow causes the pressure in the constricted area to drop and paint rises up th...
part a-d
2 A paint sprayer pumps air through a constriction in a 0.025- m diameter pipe, as shown in the figure. The flow causes the pressure in the constricted area to drop and paint rises up the feed tube and enters the air stream. The speed of the air stream in the 0.025-m diameter sections is 5.00 m/s. The density of the air is 1.29 kg/m3, and the density of the paint is 1200 kg/m3. We can treat the...
summarizr the followung info and write them in your own words and break them into different...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...
summatize the following info and break them into differeng key points. write them in yojr own...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
2. (10 points) A uniform air flow in a duct of 10 cm diameter is connected a manometer using working fluid of specific gravity of 0.7. The square well of the slant-tube manometer is sufficiently large that the elevation of the manometer fluid in it does not change T-200 significantly when fluid moves up in the leg of the manometer. When there is no flow in the duct, the liquid surface in the manometer les at 2.3 cm measured on...
hair dryer may be idealized as a circular duct through which a
small fan draws ambient air and within which the air is heated as
it flows over a coiled electric resistance wire.
(1) If a dryer is designed to operate with an electric power
consumption of Pelec= 1500 W and to heat air from an ambient
temperature of Ti= 20°C to a discharge temperature of To= 45°C, at
what volumetric flow rate ∀˙ should the fan operate? Heat loss...
10.00 points Air 129 MPa and 334 Kows upward through a 0.084-m-diameter inclined duct at a rate of 65 USThe duct diameter is then reduced to 0.064 m through a reducer. The pressure change across the reduceris measured by a water manometer. Determine the differential height between the fluid levels of the two arms of the manometer in centimeters The oferential height between the fuld levels of the two arms Hints esc 80 888
part a-d
2 A paint sprayer pumps air through a constriction in a 0.025- m diameter pipe, as shown in the figure. The flow causes the pressure in the constricted area to drop and paint rises up the feed tube and enters the air stream. The speed of the air stream in the 0.025-m diameter sections is 5.00 m/s. The density of the air is 1.29 kg/m3, and the density of the paint is 1200 kg/m3. We can treat the...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
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