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 2 of 3.
Prafull said:
8 years ago
I think, Option C is correct.
Pradeep gk said:
8 years ago
A & C both are correct.
Vipul kumar said:
8 years ago
Only reheating increases turbine work but also decrease efficiency, a combination of regeneration and reheating increases both turbine work and efficiency.
Ravi said:
8 years ago
Reheating and intercooler increases work, regenerator increases thermal efficiency.
Shadab khan said:
8 years ago
You are right. I agree @Rakesh.
Nirox said:
7 years ago
C & D both are correct. I also agree.
Vinay agarwal said:
7 years ago
C and D are correct I think.
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.
Shubham said:
7 years ago
Reheating results in a decrease in thermal efficiency but increases specific work output.
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.
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