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Water vapor at 10 MPa, 600 degrees C enters a turbine operating at steady state with a volumetric flow rate of 0.36 m3 and exits at 0.1 bar and a quality of 92%. Stray heat transfer and kinetic and potential energy effects are negligible. Determine for the turbine (a) the mass flow rate, in kg/s, (b) the power developed by the turbine, in MW, (c) the rate at which entropy is produced, in kW/K, and (d) the isentropic turbine efficiency.
gold au forms a substitutional solid with silver ag. compute the weight percent of gold that must be added to silver to
The formula for the coefficient of performance 'COP' for air standard refrigeration cycle when we use cold air properties is not given in the text. Derive the expression for COP as function of the compression ratio similar to how the ideal Brayton..
an air conditioner using r-134a as the working fluid and operating on the ideal vapor-compression refrigeration cycle
consider a flow of air in a duct assume standard atmospheric pressure at 5000 ft altitude p12.228psi. at section 1 the
A 0.7-lb block rests on top of a 0.5-lb block supported by but not attached to a spring of constant 9 lb/ft. The upper block is suddenly removed. Determine (a) the Maximum velocity reached by the 0.5-lb block, (b) the maximum height reached by the..
if a batch formula for 1950 kg of window glass consists of 200 kg of na2co3 1500 kg sio2 and an unknown amount of
question a soap bubble with walls 398 thick floats in air. if this bubble is illuminated perpendicularly with sunlight
it has been calculated that the critical point in a 4340 steel part is subject to a state of stress in with signma x is
a 15-hp shaft pump is used to raise water to a 45-m higher elevation.if the mechanical efficiency of the pump is 82
Determine the magnitude and coordinate direction angles of F3 so that the resultant of the three forces acts along the positively y axis and has a magnitude of 600lb.
a heat engine operates in a carnot cycle between72.0degc and345degc. it absorbs21600j of energy per cycle from the hot
the boat is to be pulled onto shore using two ropes. If the resultant force is to be 1000 N, directed along the keel aa , determine the magnitude of forces T, P acting in each rope at the angle teta of P so that the magnitude of P is minimum. T ac..
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