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A closed gas turbine unit uses neon as the working fluid. There are two stages of compression with intercooling from 480kPa and 290K to a maximum pressure of 2.75MPa with an intermediate pressure of 1149kPa. The regenerator has an effectiveness of 60% and delivers the neon to the high-temperature heat exchanger, where it is heated to 890K. There are two turbine stages, the first discharging at 1170kPa. Following the first turbine stage, a heat exchanger re-heats the neon temperature to 890K. The second turbine exhausts at 480kPa to the regenerator. All the expansion and compression processes are isentropic and using constant specific heats at room temperature, determine:a. The compressor work per kilogramb. The turbine work per kilogramc. The heat added to the cycle per kilogramd. The thermal efficiencye. The power output for a neon flow rate of 45kg/s
Consider a 4-in square steel bar subjected to transverse biaxial tensile stresses of 20 ksi in the x direction and 10 ksi in the y direction.
if block d weighs 300 lb and block b weighs 275 lb, determine the required weight of the block c and the angle theta for equilibrium.
A tensile specimen of cartridge brass sheet has a cross section of 0.320 in. × 0.120 in. and a gage length of 2.00 in. Calculate the engineering strain that occurred during a test if the distance between gage markings is 2.35 in. after the test.
Partial Auxiliary View showing the details of the inclined face - supply dimensions for the inclined face only. Select a suitable scale to make the drawing fit on an A3 drawing sheet.
You have a bevel gear and shaft and you have to find the maximum load that can be applied on it.
Two control rods are attached at A to lever AB. Using trigonometry and knowing that force in the right-hand rod is F2=20 lb, determine a.) the required force F1 in the left-hand rod if the resultant R of the forces exerted by the rods on the le..
Friction between the piston and the cylinder wall can be neglected. For the air, determine the initial and final pressures, in kPa, and the work, in kJ.
Advanced Stress Analysis
The velocity profiles at locations x=0.1, 0.30 and 0.5. Plot contours of u-velocity and v-velocity. How many iterations did it take to get your solution?
Sketch the thermal circuit of the system. Label (using the above symbols) all pertinent nodes and resistances.
An airplane was moving with a velocity equal to 300 mph when the velocity was increased with uniform acceleration to 600 mph in 5 min, calculate the number of miles the airplane traveled during that interval of time.
Determine the force in member BC. After the truss is sectioned use a single equation of equilibrium for the calculation of each force. State if these member is in tension or compression. Take F1 = 2 kN , F2 = F3 = 3.8kN , F4 = 5 kN, F5 = 3 kN.
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