Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 1 (Q.No. 3)
3.
The efficiency and work ratio of a simple gas turbine cycle are
Discussion:
34 comments Page 3 of 4.
John said:
1 decade ago
Efficiency = Output/input then,
Work Ratio = Net work of the turbine/Work of the turbine.
Work Ratio = Net work of the turbine/Work of the turbine.
Aqib raja khan said:
1 decade ago
It is used for safety against pressure in excess of the rated pressure.
Sudhir deshpande said:
1 decade ago
Work efficiency increases by regeneration in simple gas turbine otherwise it is minimum.
Devendra janjawat said:
1 decade ago
Work ratio = positive work /net work.
Positive work = turbine work.
Positive work = turbine work.
Rajkumar said:
1 decade ago
Since the specific volume (reciprocal of density) of air is high, the compression of air requires more work. Hence, major fraction of the work developed by the turbine is utilized in driving the compressor. Therefore, the efficiency of the simple gas turbine plant is too low.
Awinash kumar said:
1 decade ago
Mechanical efficiency of gas turbine is about 95%. It is not clear in question although thermal efficiency is about 15-20%.
Anshu maan mishra said:
1 decade ago
The ratio of the actual work output of the turbine to the work output that would be achieved if the process between the inlet state and the exit state was isentropic.
Dheeraj said:
1 decade ago
But it is low how we can say it is very low ?
Sudhir said:
1 decade ago
Because work ratio lies between 0 $ 1.
Shyam said:
1 decade ago
Compressor work is nearly about 40-60% of total work. So work done per specific fuel consumption is less compered to other.
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