Work ratio of a gas turbine may be improved by
A. Decreasing the compression work
B. Increasing the compression work
C. Increasing the turbine work
D. Both (A) and (C) above
Answer: Option D
Solution(By Examveda Team)
-Increase the turbine inlet temperature provided the turbine materials can stand the temperature or one has access to replacement parts that can withstand the temperatures. -Increase the pressure ratio. There is a limit to the efficiency increase depending upon the turbine inlet temperature. One can concievably increase the pressure ratio to a point that the increased work is never recovered because the expansion across the turbine is inadequate to recover the work. - Power augmentation through steam injection. -On turbines with HP and LP turbine separated, apply reheat.Related Questions on Compressors, Gas Turbines and Jet Engines
The compression ratio for the compressor is always _________ unity.
A. Equal to
B. Less than
C. More than
D. None of these
The hottest point in a gas turbine is
A. At the base
B. At the tip
C. In the center
D. Between ~ to i of the blade height
Temperature of gases at end of compression as compared to exhaust gases in a gas turbine is
A. Higher
B. Lower
C. Equal
D. Can't be compared
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