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Repeat Problem 9.49, but assume a closed FWH instead of an open FWH. A single pump is used to pump the water leaving the condenser up to the boiler pressure of 3.0 MPa. Condensate from the FWH is drained through a trap to the condenser.
Problem 9.49
Consider an ideal steam regenerative cycle in which steam enters the turbine at 3.0 MPa, 400?C and exhausts to the condenser at 10 kPa. Steam is extracted from the turbine at 0.8 MPa for an open FWH. The feed water leaves the heater as saturated liquid. The appropriate pumps are used for the water leaving the condenser and the FWH. Calculate the thermal efficiency of the cycle and the specific network.
A 420 kW pump delivers gasoline at a rate of 1.28 m^3/s through a horizontal pipe. The average roughness height is 0.005 cm. The total length of the pipe is 46 m. Calculate the pipe diameter.
The P.C. of a 3 degree curve, whose degree is based on a chord of100 ft. arc, is at Sta. 19+39.60 and the P.T is at Sta. 25+64.60. Calculate the deflection angle from the tangent at the P.C to each100-foot station on the curve and to the P.T.
To provide a source of cooling on this hot Florida day, the piston is now pulled up until the air reaches a temperature of -100C. It can be assumed that the process is a polytropic one with.
A plate 6 inch wide and 1/2 inch thick is lapped over and welded to a gusset plate. determine the minimum length of a 5/16 inch, side fillet weld that will be necessary if the plate is subjected to an axial stress of 20 ksi
two solid cylindrical rods are joined at B and loaded as shown rod AB is made of steel(E=200 GPa) and rod BC of brass ( E = 105GPa) determine a) the total deformation of composite rod ABC, b) the deflection of point B
What force must she exert on each handle?
The undercarriage for an aircraft uses two springs between each wheel and the aircraft fueselage to cuhion the landing of the aircraft. There are two sprung wheels and the mass of the aircraft is 5000kg
Also discuss the experimental procedures you would use for the calibration of crack length and crack closure, where appropriate, for each of the above methods.
A canal cut in rock (n= 0.030 is trapezoidal in section with the bottom width of 6.10m and side slopes of 1 on 1. The allowable average velocity is 0.76 m/s. What slope will produce 5.66 m^3/s
Compute the lengths and azimuths of the sides of a closed-polygon traverse whose corners have the following X and Y coordinates (in meters): A (8000.000, 5000.000); B (2650.000, 4702.906); C (1752.028, 2015.453); D (1912.303, 1511.635).
The coal has an ash content of 12% by mass. Forty percent of the ash falls out the bottom of the furnace. The rest of the ash is carried out of the furnace with the hot gases into an electrostatic precipitator (ESP).
if the enginer is mounted floatiing on very weak spring, what is the amplitude of the vertical vibration of the engine? (b) if the engine is mounted solidly on a rigid foundation, what is the alternating force amplitude transmitted? Assume the con..
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