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Air at standard conditions flows through a horizontal 1 ft by 1.5 ft rectangular wooden duct at a rate of 5000 ft3 /min. Determine the head loss, pressure drop, and power supplied by the fan to overcome the flow resistance in 500 ft of the duct.
How much does the change in specific flow availability between the inlet and exit of the turbine increase if the exit pressure is lowered from 14.7 psia to 1.00 psia?
The 8-lb block slides in a frictionless slot that lies in the vertical plane. The stiffness’s of springs A and B attached to the block are kA =40 lb/ft and kB= 20 lb/ft. When the block is in position 1, spring A is compressed 0.5 ft and spring B is u..
a small town has a peak power requirement of 150 kw. a plant is created using the regenerative cycle. the energy can be
In a steam power station, steam flows steadily through a 0.3 diameter pipeline from the boiler to the turbine. In the boiler, the steam is 5 MPa and 400 degrees C while reaching the turbine it changes to 2MPa and 300 C. There is a loss of heat about ..
air is compressed in a steady-flow compressor via a polytropic process from 15 psia and 60ordmf state 1 to 75 psia and
hydrogen gas is used in a carnot cycle having an efficiency of 60 with a low temperature of 300 k. during the heat
air enters a compersoor operating at steady state at 1.05 bar 300k with a volumetric flow rate of 12 m3min and exits at
a fallen tree trunk is damming up water in a creek. the tree trunk is approximately a cylinder 40 cm diameter and 4.0 m
A portion of the flow is diverted through the showerhead, which contains 100 holes of 1-mm diameter. Assuming uniform shower flow, estimate the exit velocity from the showerhead jets.
The 3-m plank shown in section has a density of 800 kg /m3 and is hinged about a horizontal axis through its upper edge O. Calculate the angle e assumed by the plank with the horizontal for the level of fresh water shown.
A single-point HSS tool with a 3/64 in nose radius is used in a shaping operation on a ductile steel workpart. The cutting speed is 120 ft/min. The feed is 0.014 in/pass and depth of cut is 0.135 in. Determine the surface roughness for this operat..
a a refrigeration system has a coeiumlnotfnofcient of performance of 5. the heat rejection is an isothermal process at
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