2. The turbine of a 1-MW steam power plant is supplied with superheated steam at 3000 kPaand 573 K, where it is expanded to the condenser pressure of 5 kPa. The isentropic efficiency ofthe turbine is 85%. The saturated liquid leaving the condenser is pumped to the boiler pressureby means of the feed water pump, the thermodynamic efficiency of which is 80%. Determine:(a) The efficiency of the ideal Rankine cycle(b) Thermal efficiency of the cycle(c) The rate of production of steam.

Given:P1=3000 KPaT1=573 KP2=5 KPaηT=0.85ηc=0.80

Answered: 2. The turbine of a 1-MW steam power…

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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A basic Rankine steam power plant uses an adiabatic turbine that operates with inlet steam at 6.80 MPa6.80 MPa and 550.0 ∘C.550.0 ∘C. The exhaust steam enters the condenser at 50.0 ∘C50.0 ∘C with a quality of 0.960. Saturated liquid water leaves the isobaric condenser and is pumped to the boiler. Mass flow through the cycle is 1.850 kg/s.1.850 kg/s. Neglecting pump work and kinetic and potential energy changes, determine: the work interaction term of the turbine: © Macmillan Learning A basic Rankine steam power plant uses an adiabatic turbine that operates with inlet steam at 6.80 MPa6.80 MPa and 550.0 ∘C.550.0 ∘C. The exhaust steam enters the condenser at 50.0 ∘C50.0 ∘C with a quality of 0.960. Saturated liquid water leaves the isobaric condenser and is pumped to the boiler. Mass flow through the cycle is 1.850 kg/s.1.850 kg/s. Neglecting pump work and kinetic and potential energy changes, determine: the work interaction term of the turbine: the thermal efficiency of…
2. Water enters the boiler of a steady-flow Carnot engine as a saturated liquid at 300 psia and leaves with a quality of 0.96. Steam leaves the turbine at a pressure of 20 psia. Show the cycle on a T-s diagram relative to the saturation lines, and determine (a) the thermal efficiency, (b) the quality at the end of the isothermal heat-rejection process, and (c) the net work output.
Consider a steam power plant that operates on the ideal reheat Rankine cycle. The plant maintains the boiler at 8000 kPa, the reheat section at 1000 kPa, and the condenser at 20 kPa. The mixture quality at the exit of both turbines is 90 percent. Determine (a) the temperature at the inlet of each turbine, (b) the cycle's thermal efficiency, efficiency of this cycle. Assume a source temperature of 1500 K and a sink temperature of 295 K. (d) the second-law

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