Superheated steam at 18 MPa, 560 °C enters the steam turbine. The pressure at the exit of theturbine is 0.06 MPa and saturated liquid water leaves the condenser at 0.06 MPa. Pressure isincreased to 18 MPa again after the pump.Find:(a) Sketch the process on a T-s diagram.(b) The net work per unit of steam flow in kJ/kg.(c) Heat transfer to steam passing through the boiler, in kJ/kg.

Answered: Image /qna-images/answer/e4bf9831-ced5-4d05-8cd2-3a8e6bb3f2c3.jpg

Answered: Superheated steam at 18 MPa, 560 °C…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Steam at a rate of 200 kg/min enters a turbine at 350°C and 40 bar through a 7.5-cm internal diameter pipe. The turbine operation is adiabatic, and the effluent leaves as saturated water at 5 bar through a 5-cm diameter pipe. 1. Calculate the work produced by the turbine in kW. 2. What is the enthalpyand phase of the effluent stream? 21 If it leaves the turbine at 75C and 5 bar 22 If it leaves the turbine at 30C and 5 bar 7.5
Steam at 10 MPa, 500 oC enters an ideal engine that has one stage of reheat; exhaust is at 50 kPa and 85% quality. The work produced by the engine is 800 kJ/kg of steam. Determine the thermal efficiency of the engine. Sketch the schematic diagram with named points and indicating the given conditions and draw the corresponding diagram indicating the operating pressures. Determine the specific enthalpies of the throttle steam and exhaust steam. Compute the absorbed by the steam in the reheater. Calculate the energy chargeable against the engine and its thermal efficiency.
2) Argon (ideal gas, Cp=0.5203 kJ/kg.K) at 27 ºC, 85 kPa, and 215 m/s enters a diffuser at a rate of 2 kg/s and leaves at 50 ºC. The exit area of the diffuser is 500 cm2. The gas is estimated to lose heat at a rate of 20 kJ/s during this process. Required: Draw a standard and clear schematic of the problem and label the performance of the schematic. Perform step by step energy and mass analyses, state your assumptions and determine the following:a) The exit velocityb) The inlet areac) The inlet pressure of the Argon

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