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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
A piston-cylinder device is insulated and contains 0.005 m3 of saturated liquid water at a constant pressure of l50 kPa. An electric resistance heater inside the cylinder is now turned on, and 1800 kJ of energy is transferred to the steam.
Using Newton Raphson method, solve the above equation for as a function of z. Vary z from 0.001 to 0.1 cm in increments of 0.01 cm. plot versus z.
Two tow trucks lift a 660 lb motorcycle out of a ravine following an accident. If the motorcycle is in equilibrium in the position shown, what are the tensions in cables AB and AC?
Estimate the mass flow rate of fuel into the engine in kg/h.
Determine the number of storage bits required in the controller memory so that the accuracy of the joint is as close as possible to, but less than, its repeatability. Use six standard deviations as the measure of repeatability.
the 1-Mg forklift is used to raise the 750-kg crate with acceleration of 2 m/s. deterimine reaction exerted by the groung on the airs of wheel at A and B.
At the end of the isothermalexpansion, the pressure is 600 kPa and the volume is 0.4 m3. Assuming the ideal gas model for air, determine the thermal efficiency.
Consider a supersonic wind tunnel with test section Mach number of 2 and fixed geometry diffuser designed to operate with minimum stagnation pressure losses (smallest diffuser area).
A cylindrical specimen of this alloy 24 mm in diameter and 186 mm long is to be pulled in tension. Calculate the force necessary to cause a 0.0119 mm reduction in diameter. Assume a value of 0.33 for Poisson's ratio.
determine the electrical power input to the pump. the density of water is 1kg/l.
Use the bisection method to determine the drag coefficient (cd) needed so that a 80 kg bunjee jumper has a velocity of 36 m/s after 4 s of free fall.
two 20mm steel plates are welded to a rolled S section as shown. Determine the moments of inertia and the radii of gyration of the combined section with respect to the centroidal x and y axes.
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