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Air enters and air compressor at a steady volume flow rate of 45 m^3/min. The air pressure increases from 100 to 700 KPa while heat is removed from the air at a rate of 20kW. The air temperature at the inlet to the compressor is 25 degrees Celsius, and the exit temperature is 150 degrees Celsius. The air leaves the compressor through a pipe with an area of 0.03 m^2. Determine the power necessary to operate the compressor under these conditions.
heat is generated in a 1.4-m-long 0.2-cm-diameter electrical wire that extends across a room which is maintained at
Refrigerant 134a at 700 kPa and 40oC is expanded adiabatically in a closed system to 60 kPa. Determine the work produced, in kJ/kg, and final enthalpy for an isentropic expansion efficiency of 80.
a steam power plant operates on an ideal regenerative rankine cycle with two open feedwater heaters. steam enters the
consider a cylinder containing 4 moles of compressed argon to 10 bar and 298 k. the cylinder is housed in a big lab
a cylindrical duct supplies 1.20 kgs of combustion air at 150 c and 95.0 kpa to a furnace. if the velocity of the air
if a batch formula for 2130 kg of window glass consists of 500 kg of caco3 1150 kg sio2and an unknown amount of na2co3.
the turbocharger of an internal combustion engine consists of a turbine and a compressor. hot exhaust gases flow
a spherical balloon contains 2 kg of water at 230 degrees c 400 kpa the specific volume is 0.5951 m3kg. the balloon
Briefly explain the difference between fatigue striations and beachmarks in terms of both size and origin.
In a DC planar magnetron sputtering system at 1000 V, the cathodeanode spacing is 10 cm. What magnetic field should be applied to trap electrons within 0.5 cm of the target?
at a point on the free surface of a machine part the strains are ex1200 mu ey300mu yxy700 mu. use mohrs circle to
for an undamped sdof spring mass system m5kg and k2000 nm. plot the displacement and acceleration of the system using
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