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A patent application describes a device that at steady state receives a heat transfer at the rate 1 kW at a temperature of 167°C and generates electricity. There are no other energy transfers. Does the claimed performance violate any principles of hermodynamics? Explain.
A steam turbine is operating at a steady state with a mass flow rate of 3682 kg/h at the inlet. The power output of the turbine is 8700 kW. Steam enters the turbine at a pressure of 40 bar, temperature of 320 oC, and with a velocity of 13 m/s. The ex..
Water in thermal equilibrium with a 50 C plate flows across the plate at a velocity of 0.5 m/s. find the length of the plate required such that the critical Reynolds number is achieved at the trailing edge of the plate.
a carnot engine receives 15 btus from a source at 900 f and delivers 6000 ft . lbf s of power. determine the engine
Assuming air to be an ideal gas, what would be the mass of air in a classroom of size 20 ft x 15 ft x 9 ft assuming the pressure inside the classroom is 1 atm and the classroom is at a constant temperature of 20^o C . Would the mass of gas inside the..
the inside surface of an 8-in-thick common brick wall is maintained at 100 f. thermal conductivity of th brick is 1.0
Air from a workspace enters the air conditioner unit at 30C dry bulb and 20C wet bulb. The air leaves the air conditioner and returns to the space at 20C dry bulb and 6.5C dew point temperature. If there is any, the condensate leaves the air conditio..
compare the effectiveness of quenching in moderately agitated water and oil by graphing on a single plot radial
Determine the power developed, the total percentage fluctuation of speed and the angular acceleration of flywheel when the crank has rotated thro' an angle of 600 from the Inner dead centre
for certain liquid mu 6 times 10-5 lb.sft2 at 50 degree f and mu 1.5 times 10-5lb.sft2 at 180 degree f. make use of
a heat exchanger is to be designed to condense 1100 kghr of steam ay 150 kpa. for this purpose cooling water at 50
If the final pressure is 1.0 MPa, determine (a) the temperature (°C) at the final state and (b) the heat transfer (kJ) during this process.
as shown a rope is attached to a l5.00 m high shed that is to be relocated. a man pulls on the end of the rope at point
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