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Air is compressed from 100 kPa and 20C to 700 kPa in an adiabatic compressor with an isentropic efficiency of 90%. Assuming that the mass flow rate is 0.1 kg/s determine the power input to this compressor, in kW, and the rate of entropy generated. Use approximate analysis.
water at 20 bar 400oc enters a turbine operating at steady state and exits at 1.5 bar. stray heat transfer and kinetic
a stone with a mass of 2 kg is thrown vertically into the air by a powerful catapult to an elevation of 100 m where the
In a tubular low pressure chemical vapor deposition (LPCVD) reactor, gas is introduced at one end at a rate of 75 torr-L/min. At the other end is a vacuum pump of a speed Sp. If the reactor must operate at 1 torr, what value of Sp is required?
1. list and explain the desirable mechanical and physical properties for a an elevator cable b paper clip and c
the wheel of the slider-crank mechanism shown in the figure is rotating counterclockwise at a constant rate of 10 rads.
determine the work required to compress steam isentropically from 100 kpa to 1 mpa assuming that the steam exists as a
Water, initially a saturated liquid at 100 C, is contained in a piston–cylinder assembly. The water undergoes a process to the corresponding saturated vapor state, during which the piston moves freely in the cylinder.
categorize the different types of diffusional solid-solid phase transformations based on the typical diffusion
Calculate all the gear ratios. if 22.1 kw is transmitted in 1st gear at an engine speed of 3000 rpm, Evaluate the required fixing torque on the annulus
1. convert 8720 gallons per minute to ft3sec.2. one gallon is a volume measure of 231 in3. determine the velocity in a
A piston cylinder device contains 3kg of water vapor at 30 bar and 350ºC. it is cooled at constant volume until the temperature reaches 195ºC. Then it is compressed at constant temperature to 20bar. (a) Show the process on a T-V diagram. (b) Determin..
A system consisting of 1kg of H2O undergoes a cycle composed of the following closed processes:
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