Water is the working fluid in a regenerative Rankine cycle with one closed feed water heater.

Water is the working fluid in a regenerative Rankine cycle with one closed feedwater heater. Steam enters the turbine at 1400 lbf/in. and 1000°F and expands to 120 lbf/in. , where some of the steam is extracted and diverted to the closed feedwater heater. The remaining steam expands through the second-stage turbine to the condenser pressure of 3.5 lbf/in. Each turbine stage and the pump have isentropic efficiencies of 80%. Flow through the condenser, closed feedwater heater, and steam generator is at constant pressure. Condensate exiting the feedwater heater as saturated liquid at 120 lbf/in. undergoes a throttling process as it passes through a trap into the condenser. The feedwater leaves the heater at 1400 lbf/in. and a temperature equal to the saturation temperature at 120 lbf/in. The net power output of the cycle is 1 x 10 Btu/h. Determine for the cycle: (a) the mass flow rate of steam…

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A gas turbine power plant operating on an ideal Bray

A gas-turbine power plant operating on an ideal Brayton cycle has a pressure ratio of 8. The gas temperature is 300 K at the compressor inlet and 1300 K at the turbine inlet. Draw the Cycle on T-s and determine the thermal energy in the following cases a) Isentropic process for compressor and turbine b) 80% isentropic efficiency for compressor and turbine Solved! Get completed solution by your friendly study co-pilot. Add to Solution Cart Contact Me

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A 25 mm diameter uniform steel shaft is 600 mm long

A 25-mm-diameter uniform steel shaft is 600 mm long between bearings. (a) Find the lowest critical speed of the shaft. (b)If the goal is to double the critical speed, find the new diameter. (c)A half-size model of the original shaft has what critical speed? Solved! Get completed solution by your friendly study co-pilot. Add to Solution Cart Contact Me

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The crane shown supports a large wrecking ball

The crane shown supports a large wrecking ball of mass Mon a cable of length L – 16.5 m. The trussed beam of the crane can be approximated as a uniform beam of mass 460 kg, and the two supporting cables (those attached to the top of the crane’s cab) can each have a maximum tension of 55 kN. Assume that all cables and the beam are co planar. (a) Find the maximum wrecking ball mass that the crane can support, (b) Assume that the wrecking ball can act as a simple pendulum. Find expressions for the position, velocity, and acceleration of the pendulum as a function of time. For this part, fill in your expressions with numerical values as much as possible. Solved! Get completed solution by your friendly study co-pilot. Add to Solution Cart Contact Me

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