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Nitrogen (N2) gas at 100 kPa and 298 K enters a compressor steadily with a mas flow rate of 2 kg/s. The nitrogen leaves at 800 kPa and 580 K. Asume the compressor is well insulated. Do NOT assume the specific heats of the nitrogen as constant or a linear function of temperature.
Determine:
A) the rate of entropy generation during this process
B) if the process is reversible, irreversible or impossible.
r-134a at 800 kpa and 100 c enters an adiabatic nozzle steadily with a velocity of 20ms and leaves as sat-v at 400 kpa.
Air enters the turbine of a gas turbine at 1200 kPa and 1200 K, and expands to two stages. Between the stages, the air is reheated at a constant pressure of 350 kPa to 1200 K. The expansion through each turbine stage is isentropic.
Reheat is added to an ideal Rankine steam power cycle to improve it’s efficiency and turbine exit quality. Steam enters the HP turbine at 15 MPa and 600C. Steam exits the HP turbine at 4 MPa and enters the boiler for reheat. Then the steam enters the..
an orthogonal cutting operation is being carried out under the following conditions depth of cut 0.15mm width of cut5mm
a belt pulley is fastened to a 75 mm shaft running at 360 rpm by means of a key 18 mm wide and 125 mm long. the
Each turbine stage isentropic efficiency of 85% FWH is open T-S diagram for cycle? What is thermal efficiency and the moisture content of the steam leaving the low-pressure turbine?
Dislocations are line defects that can be looked as extra half planes inserted into the crystal lattice. Point defects can be defined as edge and screw dislocations
incoming air flow of 200 m3h at a temperature of 20oc and a humidity ratio of 0.012 kgvkga is mixed in a chamber with
you are working in a company that has developed a process to produce dna vaccines from e.coli. after the fermentation
the wheel on a boat trailer has an angular speed of 1400 rpm when the trailer is towed at 90 kmhr. calculate the
a large fireplace in a ski lodge has a glass firescreen which covers a vertical opening in the fireplace. the opening
Refrigerant-134a is throttled from saturated liquid state at 7 bar to a pressure of 1.4 bar. Determine the temperature drop during this process and the final specific volume.
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