Consider a steam power plant that operates a reheat Rankine cycle and has a net power output of 80 MW. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1.4 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. Assume both turbine and compressor are isentropic. Determine the thermal efficiency of the cycle. Use steam tables. The thermal efficiency of the cycle is 100 %.

Consider a steam power plant that operates a reheat Rankine cycle and has a net power output of 80 MW. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1.4 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. Assume both turbine and compressor are isentropic. Determine the thermal efficiency of the cycle. Use steam tables. The thermal efficiency of the cycle is 100 %.

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

See similar textbooks

Similar questions

A steam Rankine cycle operates between the pressure limits of 1500 psia in the boiler and 4 psia in the condenser. The turbine inlet temperature is 800°F. The turbine isentropic efficiency is 90 percent, the pump losses are negligible, and the cycle is sized to produce 2500 kW of power. How much error is caused in the thermal efficiency if the power required by the pump were completely neglected? Use steam tables. The error caused in the thermal efficiency if the power required by the pump was completely neglected is %.
A power plant is to be operated on an ideal Rankine cycle with the superheatedsteam exiting the boiler at 4 MPa and 500°C. Calculate the thermal efficiencyand the quality at the turbine outlet if the condenser pressure is (a) 20 kPa,(b) 10 kPa, and (c) 8 kPa.
A steam Rankine cycle operates between the pressure limits of 1500 psia in the boiler and 3 psia in the condenser. The turbine Inlet temperature is 800°F. The turbine isentropic efficiency is 90 percent, the pump losses are negligible, and the cycle is sized to produce 2500 kW of power. How much error is caused in the thermal efficiency if the power required by the pump were completely neglected? Use steam tables. The error caused in the thermal efficiency if the power required by the pump was completely neglected is 32.65 %.
Consider a steam power plant operating on the ideal Rankine cycle. Steam enters the turbine at 3 MPa and 350°C and is condensed in the condenser at a pressure of 10 kPa. Determine the thermal efficiency if steam is superheated to 600°C instead of 350°C in % Note: Include your T - S diagram on your solution. Clear and no Erasures.
A steam Rankine cycle operates between the pressure limits of 1500 psia in the boiler and 2 psia in the condenser. The turbine inlet temperature is 800F. The turbine isentropic efficiency is 90 percent, the pump losses are negligible, and the cycle is sized to produce 2500 kW of power. Calculate the mass flow rate through the boiler, the power produced by the turbine, the rate of heat supply in the boiler, and the thermal efficiency.
Water enters the turbine of an ideal Rankine cycle as superheated vapor at 10 MPa and 600°C. If the condenser pressure is 10 kPa, Calculate the thermal efficiency of the system.
Consider a 150-MW steam power plant that operates on a simple Rankine cycle. Steam enters the turbine at 7 MPa and 500°C and is cooled in the condenser at 10 kPa. Calculate the volume flow rate of sea water (S.G. = 1.05) used in the condenser, if the allowable temperature rise is 5°C. Assume an isentropic efficiency of 87% for both the turbine and the pump.
In an ideal Rankine cycle, steam is generated at 4.1 MPa and 480°C. The condenser is at 32°C. Determine the ideal pump work in KJ/kg.
Consider a steam power plant that operates on a reheat Rankine cycle and has a net power output of 80 MW. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1.4 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. Assume both turbine and compressor are isentropic. Determine the mass flow rate of the steam. The mass flow rate of the steam is 74 x kg/s.
Consider a steam power plant that operates on a reheat Rankine cycle and has a net power output of 80 MW. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1.8 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. Assume both turbine and compressor are isentropic. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Determine the quality (or temperature, if superheated) of the steam at the turbine exit. The quality of the steam at the turbine exit is
Consider a steam power plant that operates on a reheat Rankine cycle and has a net power output of 80 MW. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1.4 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. Assume both turbine and compressor are isentropic. Determine the thermal efficiency of the cycle. Use steam tables. The thermal efficiency of the cycle is 38.55 %.
Consider a steam power plant operating on the simple ideal Rankine cycle. The steam enters the turbine at 4 MPa, 400 degrees celcius and is condensed in the condenser at a pressure of 100 kPa. Draw the schematic and T-s diagram of the cycle and determine the following per unit mass of steam. (a) Turbine work (b) Pump work (c) Heat added in the boiler (d) Heat rejected in the condenser (e) Thermal efficiency of the cycle (f) Heat rate (g) Steam rate of the cycle