Mechanical Engineering - Compressors, Gas Dynamics and Gas Turbines - Discussion

Discussion Forum : Compressors, Gas Dynamics and Gas Turbines - Section 1 (Q.No. 34)
34.
Intercooling in gas turbines
decreases net output but increases thermal efficiency
increases net output but decreases thermal efficiency
decreases net output and thermal efficiency both
increases net output and thermal efficiency both
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 2 of 2.

Jnk said:   9 years ago
The correct answer is B.

Deepak dixit said:   1 decade ago
Inter cooling only increases the net work output due to reduction in compressor work but decreases the efficiency.

Brij Bhushan said:   1 decade ago
Answer is not correct.

Efficiency decreases because with inter-cooling exit temperature of air decreases, so more heat is required to maintain the maximum temperature. Net output of system increases.

Nikhil Shevkar said:   1 decade ago
Answer is not correct.

Inter-cooling doesn't increases the efficiency because on intercooling temp of air at combustion chamber decreases than normal brayton cycle so heat needs to be supply more in combustion but intercooling increases output as Wc decreases.


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