A reheat cycle with two stages of reheating is executed, with steam expanding initially from 90 bar and 530C. The two reheater pressure are 10 bar and 0.6 bar, and the steam leaves each reheater at 480C. Condensation occurs at 0.04 bar. For an ideal cycle, find (a) QA and e. (b) For the engine, ignore the pressure drop through the reheaters, let the engine operate through the same states and compute W and e. (c) What is the steam flow rate for an engine output of 20,000kW?
A reheat cycle with two stages of reheating is executed, with steam expanding initially from 90 bar and 530C. The two reheater pressure are 10 bar and 0.6 bar, and the steam leaves each reheater at 480C. Condensation occurs at 0.04 bar. For an ideal cycle, find (a) QA and e. (b) For the engine, ignore the pressure drop through the reheaters, let the engine operate through the same states and compute W and e. (c) What is the steam flow rate for an engine output of 20,000kW?
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 reheat cycle with two stages of reheating is executed, with steam expanding initially from 90 bar and 530C. The two reheater pressure are 10 bar and 0.6 bar, and the steam leaves each reheater at 480C. Condensation occurs at 0.04 bar. For an ideal cycle, find (a) QA and e. (b) For the engine, ignore the pressure drop through the reheaters, let the engine operate through the same states and compute W and e. (c) What is the steam flow rate for an engine output of 20,000kW?
Answer: (a) 4657.5 KJ/kg, 44.31%; (b) 2072.6 KJ/kg, 44.41%; (c) 9.65 kg/s
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