For many maintenance processes, compression of air is an important precursor step, which usually occurs in...
For many maintenance processes, compression of air is an important precursor step, which usually occurs in a tank with one flow in and another out. Consider that standard air (density of 1 kg/m3) flows into a 9 m3 tank at a rate of 3 m3/s and that compressed air (1.3 kg/m3) flows out of a 10 cm-diameter pipe at a bulk velocity of 250 m/s. a. At what rate in kg /s does the mass in the tank change with time? (positive for increase, negative for decrease) b. At what rate in (kg/m3)/s does the density of the air in the tank change with time?
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For many maintenance processes, compression of air is an
important precursor step, which usually occurs in...
A fluid of density 1300 kg/m3 flows out through a 3 meter diameter pipe without friction at a rat...
A fluid of density 1300 kg/m3 flows out through a 3 meter diameter pipe without friction at a rate of 1500 L/s. Find the velocity of the fluid as it flows out of the 3 meter diameter pipe. Note that the 'speed' sensor does not give enough significant figures... use the sensor, to prove your calculations (and not the opposite!) Submit Answer Tries 0/99 Calculate the velocity of the fluid if the pipe constricts to a diameter of 1 meter....
Problem #4 (30 Points) Air at 110 kPa and 323°K flows upward through a 0.06m diameter...
Problem #4 (30 Points) Air at 110 kPa and 323°K flows upward through a 0.06m diameter inclined duct at a volume flow rate of 0.045 m3/s. The duct diameter is then reduced to 0.04m through a reducer. The pressure change across the reducer is measured by a water monometer (Density 1000 kg/m3) The elevation difference between the two points on the center of the pipe where the two arms of the monometer are attached is 0.2m. (1) Determine the density...
110 points) Air at standard conditions enters the compressor at a rate of 12 ft3 tank...
110 points) Air at standard conditions enters the compressor at a rate of 12 ft3 tank through a 1.2.in, diameter pipe with a density of 0.0035 slugs/ift and a uniform 700 ft/s fs.It leave of (a) Determine the rate (slugs/s) at which the mass of air in the tank is increasing or decread (b) Determine the average time rate of change of air density within the tank. Compressor 12t ls 0.00238 slugs/ft Tank volume = 20 ft3 .2 in 600...
Air at 100 kPa and density of 1.2 kg/m3 flows upward through a 5-cm diameter inclined...
Air at 100 kPa and density of 1.2 kg/m3 flows upward through a 5-cm diameter inclined duct at a rate of 50 L/s. The duct diameter is then reduced to 4 cm through a reducer. The pressure change across the reducer is measured by a water manometer. The elevation difference between the two points on the pipe where the two arms of the manometer are attached is 0.1 m. Determine the differential height between the fluid levels of the two...
1. A rigid (constant volume) tank sealed by a valve initially contains 100 kg of air...
1. A rigid (constant volume) tank sealed by a valve initially contains 100 kg of air at a pressure of 100 kPa and 300 K. At time t = 0, the valve for the air tank is opened in a controlled manner and air leaks out isothermally (constant temperature) of the tank at a constant mass flow rate of 1 kg/s. The valve is closed after 75 seconds. Answer the following questions: Assuming air is an ideal gas, what is...
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...
A U-tube contains liquid of unknown density. An oil of density 770 kg/m³ is poured into...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
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...
Air compressors are sometimes installed in four-wheel drive vehicles to allow for maintaining tyre pressures whilst in the outback. One notable problem with this system is the increase in air temperat...
Air compressors are sometimes installed in four-wheel drive vehicles to allow for maintaining tyre pressures whilst in the outback. One notable problem with this system is the increase in air temperature during compression, which leads to the heating up of metallic fittings on the compressor and hose, posing a thermal risk to operators. The compressor compresses air isentropically from atmospheric pressure to 300 kPa. The inlet air temperature is 300K. (a) What is the temperature of the air at the...
Find the settling velocity of an 8 μm diameter particle with density 1500 kg/m3. If this...
Find the settling velocity of an 8 μm diameter particle with density 1500 kg/m3. If this particle had been hurled to a height of 7000 m during a volcanic eruption, estimate the time required to reach the ground (at sea level). You may assume that the viscosity of air does not change enough with altitude to be important. If winds average 8.0 m/s, how far away (horizontally) would it travel on its way down?
A fluid of density 1300 kg/m3 flows out through a 3 meter diameter pipe without friction at a rate of 1500 L/s. Find the velocity of the fluid as it flows out of the 3 meter diameter pipe. Note that the 'speed' sensor does not give enough significant figures... use the sensor, to prove your calculations (and not the opposite!) Submit Answer Tries 0/99 Calculate the velocity of the fluid if the pipe constricts to a diameter of 1 meter....
Problem #4 (30 Points) Air at 110 kPa and 323°K flows upward through a 0.06m diameter inclined duct at a volume flow rate of 0.045 m3/s. The duct diameter is then reduced to 0.04m through a reducer. The pressure change across the reducer is measured by a water monometer (Density 1000 kg/m3) The elevation difference between the two points on the center of the pipe where the two arms of the monometer are attached is 0.2m. (1) Determine the density...
110 points) Air at standard conditions enters the compressor at a rate of 12 ft3 tank through a 1.2.in, diameter pipe with a density of 0.0035 slugs/ift and a uniform 700 ft/s fs.It leave of (a) Determine the rate (slugs/s) at which the mass of air in the tank is increasing or decread (b) Determine the average time rate of change of air density within the tank. Compressor 12t ls 0.00238 slugs/ft Tank volume = 20 ft3 .2 in 600...
1. A rigid (constant volume) tank sealed by a valve initially contains 100 kg of air at a pressure of 100 kPa and 300 K. At time t = 0, the valve for the air tank is opened in a controlled manner and air leaks out isothermally (constant temperature) of the tank at a constant mass flow rate of 1 kg/s. The valve is closed after 75 seconds. Answer the following questions: Assuming air is an ideal gas, what is...
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...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
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...
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