cogeneration steam plant of the extraction -condensing steam turbine type has turbine inlet flow of 12.5 kg/s at 50 bar and 400 °C, extraction for process steam at 220 °C and condensing for both turbine and process is at 40 °C. Assume ideal turbine and pump processes, no feed water heating and electricity to total energy rate output equal to 50%. Calculate, Fial Famination 2015/201 (a). The cogeneration plant efficiency. (b). The plant efficiency if separate electric and steam generation (separate method) producing the same outputs as above are used. For cases (a & b) take the steam generator efficiency as 85 % and neglect pumps work.
cogeneration steam plant of the extraction -condensing steam turbine type has turbine inlet flow of 12.5 kg/s at 50 bar and 400 °C, extraction for process steam at 220 °C and condensing for both turbine and process is at 40 °C. Assume ideal turbine and pump processes, no feed water heating and electricity to total energy rate output equal to 50%. Calculate, Fial Famination 2015/201 (a). The cogeneration plant efficiency. (b). The plant efficiency if separate electric and steam generation (separate method) producing the same outputs as above are used. For cases (a & b) take the steam generator efficiency as 85 % and neglect pumps work.
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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Transcribed Image Text:cogeneration steam plant of the
extraction -condensing steam
turbine type has turbine inlet
flow of 12.5 kg/s at 50 bar and
400 °C, extraction for process
steam at 220 °C and condensing
for both turbine and process is
at 40 °C. Assume ideal turbine
and pump processes, no feed
water heating and electricity to
total energy rate output equal to
50%. Calculate, Fial Famination
2015/201 (a). The cogeneration
plant efficiency. (b). The plant
efficiency if separate electric
and steam generation (separate
method) producing the same
outputs as above are used. For
cases (a & b) take the steam
generator efficiency as 85 % and
neglect pumps work.
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