In a regenerative feed heating cycle, the greatest economy is affected___________?
Correct answer: B. when steam is extracted from several places in different stages of steam turbine
- A. when steam is extracted from only one suitable point of steam turbine
- B. when steam is extracted from several places in different stages of steam turbine
- C. when steam is extracted only from the last stage of steam turbine
- D. when steam is extracted only from the first stage of steam turbine
Explanation
Several extraction points heat the feedwater in stages, matching the water temperature more closely to the turbine expansion temperatures. This gives greater economy than extracting steam at only one point.
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