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Steam is the working fluid in an ideal reheat Rankine cycle. Steam enters the first-stage turbine at 8.0 MPa, 480oC, and expands to 0.7 MPa. It is then reheated to 440oC before entering the secondstage turbine, where it expands to the condenser pressure of 0.008 MPa. The net power output is 100 MW. Determine
(a) the thermal efficiency of the cycle,
(b) the mass flow rate of steam, in kg/h,
(c) the rate of heat transfer out from the condensing steam as it passes through the condenser, in MW. Discuss the effects of reheat on the vapor power cycle.
How many kilograms each of pearlite and the proeutectoid phase form? Schematically sketch and label the resulting microstructure.
a piston cylinder assembly contains a fixed amount of a gas at a given temperature and pressure. for a specified
260-pound weight is supported by two ropes, one forming a 40 degree angle with the ceiling and the other a 50 degree. Find the tension in each rope.
the measured lapse rate at a given location was 3.8 degree f per 1000 ft and the surface temperature was 60 degree f.
consider the thin-walled beam section illustrated in the figure below. the beam has a vertical load of v 500 kn acting
Draw the Mohr's circle for this stress state, deterrnine the principal stresses and the angle of the principal direction to the x-axis and determine the maximum shear stress.
a set of steel reinforcing rods is to be stretched axially in tension to create a tensile stress of 30ksi prior to
The wheel of a crane lift is rolling on a flat rail. The radius of the wheel is 4 in, the contact length and force are 2.5 in and 1 ton respectively, and E = 30 MPa and ν = 0.3 for both parts. Determine (a) the maximum contact pressure, (b) the wi..
Determine the resulting change
which of the following butt-weld preparations is usually the most susceptible to lack of sidewall fusion during the
explain how multiple depths can be produced by chemical machining also mention the relationship between width and depth
Compute the x-and y-components of the force acting on the pinB connecting the two members of the machine subjected to the 200-N load.
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