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steam turbine is supplied with steam at 20.6 bar and 95°C of superheat and expand to 0.0343 bar. Steam is bled of 4.9, 1.373, and 0.275 bar, the bled steam being cascaded from heater to heater until it discharges through a drain cooler to the condenser. Assuming that the turbine expansion is isentropic and the drain cooler raises the combined heater condensate to condenser temperature, determine the following: The thermal efficiency in percentile. The steam consumption of kg per kW·hr without feed heating.

steam turbine is supplied with steam at 20.6 bar and 95°C of superheat and expand to 0.0343 bar. Steam is bled of 4.9, 1.373, and 0.275 bar, the bled steam being cascaded from heater to heater until it discharges through a drain cooler to the condenser. Assuming that the turbine expansion is isentropic and the drain cooler raises the combined heater condensate to condenser temperature, determine the following: The thermal efficiency in percentile. The steam consumption of kg per kW·hr without feed heating.

Elements Of Electromagnetics
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 steam turbine is supplied with steam at 20.6 bar and 95°C of superheat and expand to 0.0343 bar. Steam is bled of 4.9, 1.373, and 0.275 bar, the bled steam being cascaded from heater to heater until it discharges through a drain cooler to the condenser. Assuming that the turbine expansion is isentropic and the drain cooler raises the combined heater condensate to condenser temperature, determine the following:

  • The thermal efficiency in percentile.
  • The steam consumption of kg per kW·hr without feed heating.
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