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A Brayton cycle with a regenerator uses air as the working fluid. The air enters the compressor at 283K and 0.1 MPa. The highest temperature in the cycle is 1073K and the pressure ratio across the compressor is 8. The isentropic efficiency of the compressor is 87% and 93% for the turbine. The air exiting the cool side of the regenerator is 10C cooler than the air entering the hot side. The cycle produces 150kW of power.Using Constant specific heats
Determine:a) The effectiveness of the regeneratorb) The mass flow rate through the systemc) The rate of heat additiond) The rate of heat rejection
Due to temperature change, a 1/32" hole mismatching occurred. What is the pulling force, in lbs, to be applied for one of the plates to match the two holes The plate length is 3 ft (from the left end to the hole) and its cross section is 1/8" x 1"..
The design wind speed is 15 mph at T=10C and p=0.9 bar. The efficiency of the turbine is n=20% meaning that 20% of the kinetic energy in the wind can be extracted. estimate the power in watts that can be produced by the turbine.
A sample of neon has a volume of 555 mL when it is at a pressure of 813 mmHg. What will be the volume when the pressure is increased to 1138 mmHg?
A rotating shaft with an applied torque of 400 Newton-meters is held in place (stopped) by a shaft key. The diameter of the shaft is 15 centimeters. The shaft key has a length of 20 cm, and is square, with its width and height being 5 cm.
The gate is rectangular with a horizontal width of 2m perpendicular to the paper. For a depth h = 3m of water, calculate the required force exerted by the hydraulic cylinder to keep the gate just closed.
an engineer uses a standard technique for measuring the thickness of a clay landfill liner that has a typical standard deviation of 0.7 in. The project specifications require the liner thickness to be 36 inches or more, at least 95 percent of the ..
A 12inx1inx3in ASTM 36 steel bar is loaded with an axial load of 90,000lbs and a transversal load of 288,000lbs (force applied perpendicular to the 1in side) The proportionality limit is 34,000psi.
The wastewater treatment plant for Pine City discharges 1 × 105 m3/day of treated waste to the Pine River. Immediately upstream of the treatment plant, the Pine River has an ultimate CBOD of 2 mg/L and a flow of 9 × 105 m3/day.
The maximum wind pressure on the traffic sign is 200 kg/m2. The maximum allowable shear stress is 350 kg/cm2. Design the traffic pole (only vertical element) against torsion knowing that angle of twist at the base should not exceed 6°.
in an air standard otto cycle , the air at the beginning of the compression stroke is at 95 kpa and 22c ,and the cylinder volume is 0.0028 m^3 . the compression ratio is 9 and 4.3 kj are added during the heat addition process
It is desirable to produce a copper-nickel alloy that has a minimum noncold-worked tensile strength of 390 Mpa and a ductility of at least 40% elongation. Is such an alloy possible If so, what must be its composition
What is the Federal Express philosophy toward quality? What specific elements/actions has FedEx implemented in its quality improvement history?
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