Mechanical Engineering - Compressors, Gas Dynamics and Gas Turbines - Discussion
Discussion Forum : Compressors, Gas Dynamics and Gas Turbines - Section 2 (Q.No. 2)
2.
Reheating in a gas turbine
Discussion:
23 comments Page 1 of 3.
Vinay said:
5 years ago
Turbine work is increased, efficiency may increase or decrease.
Anji said:
6 years ago
Answer C and D both are correct answers.
Jitesh said:
6 years ago
@shubham.
It is true it increases turbine work but efficiency, ay increase or decrease it depends on the amount of reheat.
It is true it increases turbine work but efficiency, ay increase or decrease it depends on the amount of reheat.
Ashish Patel said:
6 years ago
Reheating is applied in a gas turbine in such a way that it increases the turbine work without increasing the compressor work or melting the turbine materials. When a gas turbine plant has a high pressure and low pressure turbine a reheater can be applied successfully. Reheating can improve efficiency up to 3%.
A reheater is generally is a combustor which reheats the flow between the high and low-pressure turbines.
A reheater is generally is a combustor which reheats the flow between the high and low-pressure turbines.
Shubham said:
7 years ago
Reheating results in a decrease in thermal efficiency but increases specific work output.
Sneha Nair said:
7 years ago
The answer is CD.
Increases turbine work output.
Decreases thermal efficiency.
Q in increases. Work also increases. But the increase in Qin is more than Work So thermal efficiency decreases.
Increases turbine work output.
Decreases thermal efficiency.
Q in increases. Work also increases. But the increase in Qin is more than Work So thermal efficiency decreases.
Vinay agarwal said:
7 years ago
C and D are correct I think.
Nirox said:
7 years ago
C & D both are correct. I also agree.
Shadab khan said:
8 years ago
You are right. I agree @Rakesh.
Ravi said:
8 years ago
Reheating and intercooler increases work, regenerator increases thermal efficiency.
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