Mechanical Engineering - Steam Nozzles and Turbines - Discussion

Discussion Forum : Steam Nozzles and Turbines - Section 3 (Q.No. 36)
36.
The efficiency of an impulse turbine is maximum when (where Vb = Blade speed, V = Absolute velocity of steam entering the blade, and α = Nozzle angle)
Vb = 0.5 V cos α
Vb = V cos α
Vb = 0.5 V2 cos α
Vb = V2 cosα
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.

Nabamhinapapu@gmail.com said:   9 years ago
None of the answers is correct. Answer option A is optimum velocity ratio.

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