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Consider an ideal steam regenerative Rankine cycle with two feedwater heaters, one closed and one open. Steam enters the turbine at 12.5 MPa and 550°C and exhausts to the condenser at 10 kPa. Steam is extracted from the turbine at 0.8 MPa for the closed feedwater heater and at 0.3 MPa for the open one. The feedwater is heated to the condensation temperature of the extracted steam in the closed feedwater heater. The extracted steam leaves the closed feedwater heater as a saturated liquid, which is subsequently throttled to the open feedwater heater. Show the cycle on a T-s diagram with respect to saturation lines, and determine
(a) The mass flow rate of steam through the boiler for a net power output of 250 MW and
(b) The thermal efficiency of the cycle.
a horizontal stainless steel conductivity k 15 wmk circular pipe of outside and inside diameters of 0.50 m and 0.45 m
argon at 20 degrees c and 100kpa has a velocity of 27 ms and enters a constant diameter pipe of 18mm. as the argon
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a room in the lower level of a cruise ship has a 30cm diameter circular window.if the midpoint of the window is 4m
A 2-m^3 rigid insulated tank initially containing saturated water vapor at 1 MPa is connected through a valve to a supply line that carries steam at 400C. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure i..
The rocket car below is thrusting so that at constant thrust (force) , it reaches a velocity of 500 km/hr in 30 seconds. How much thrust is this (kN)? Determine the moment around the front axel M, while thrusting.
if a system has two redundant safety systems with failure rates of 0.16 and 0.22 faults per year respectively what is
a steam rankine cycle operates between the pressures of 2500 psi in the boiler and 1 psi in the condenser. the turbine
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a rope 25m long is cut into two pieces. one piece is bent into the shape of a square and the other into the shape of a
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