1. Why is excessive moisture in steam undesirable in steam turbines? What is the highestmoisture content allowed?2. Why is the Carnot cycle not a realistic model for steam power plants?3. Consider a simple ideal Rankine cycle with fixed turbine inlet conditions. What is theeffect of lowering the condenser pressure onPump work input: (a) increases, (b) decreases,(c) remains the same(a) increases, (b) decreases,(c) remains the same(a) increases, (b) decreases,(c) remains the same(a) increases, (b) decreases,(c) remains the same(a) increases, (b) decreases,(c) remains the same(a) increases, (b) decreases,Turbine workoutput:Heat supplied:Heat rejected:Cycle efficiency:Moisture contentat turbine exit: (c) remains the same4. Consider a simple ideal Rankine cycle with fixed boiler and condenser pressures. Whatis the effect of superheating the steam to a higher temperature onPump work input: (a) increases, (b) decreases,(c) remains the same(a) increases, (b) decreases,(c) remains the same(a) increases, (b) decreases,(c) remains the same(a) increases, (b) decreases,(c) remains the same(a) increases, (b) decreases,(c) remains the same(a) increases, (b) decreases,Turbine workoutput:Heat supplied:Heat rejected:Cycle efficiency:Moisture contentat turbine exit: (c) remains the same5. How do actual vapor power cycles differ from idealized ones?6. Is it possible to maintain a pressure of 10 kPa in a condenser that is being cooled byriver water entering at 20°C?7. Which of the following contributes to the improvement of efficiency of Rankine cyclein a thermal Power Plant?a) reheating of steam at intermediate stageb) regeneration use of steam for heating Boiler feed waterc) using high pressuresd) all of the mentioned

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Engineering

Mechanical Engineering

1. Why is excessive moisture in steam undesirable in steam turbines? What is the highest moisture content allowed?

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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