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Air at 1600 K, 30 bar enters a turbine operating at steady state and expands adiabatically to the exit, where the temperature is 830 K. If the isentropic turbine efficiency is 90%, determine (a) the pressure at the exit, in bar, and (b) the work developed, in KJ per kg of air flowing. Assume ideal gas behavior for the air and ignore kinetic and potential energy effects.
the compression ratio of an air-standard ideal otto cycle is 10. prior to the isentropic compression process the air is
A simple plate capacitor can store 6.5x10^-5 C at a potential of 10000 V. what dielectric constant must the material between the plates have if their area is 6.0x10^-5 m2 and they are 0.16 mm apart?
an hydraulic turbine operates under an available head of 85 m at a flow rate of 0.25 m3s. the electrical power output
A piston-cylinder device contains 0.8kg of steam at 300 degrees C and 1 MPa. Steam is cooled at constant pressure until one-half of the mass condenses.
A tank with a flat bottom is filled with water to a height of 3.5 meters. what is the pressure at any point at the bottom of the tank? (You can ignore atmospheric pressure when calculating your answer.)
an electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive
a loxlh2 rocket engine with a chamber pressure of 25 atm is optimized with an isentropic nozzle that is perfectly
Shows an electric-circuit which is called a phase-lag network. Derive the transfer function and consider the above bock-diagram of figure (3). You are now required to derive the transfer function Y(s)/R(s), by using the signal flow graph meth..
billiard ball a of mass. ma0.400kg moving with speed va1.80ms strikes ball b initially at rest of mass mb0.500kg. as a
Knowing that the bracket AB has a uniform thickness of 5/8 in., determine the principal planes and principal stresses at point H.
steam at 10 mpa and 450 degrees c enters an adiabatic turbine at 80 ms and exits at 10 kpa 92 quality and 50 ms. the
explain in your own words what standard deviation is and why it is useful when describing experimental data. 2. what
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