Question
Download Solution PDFThe value of the gross stage efficiency and Blade efficiency of the single stage of the impulse turbine are 65% and 78% respectively then the value of the nozzle efficiency will be
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept
Gross or stage efficiency:
- It is the ratio of work done on the blades per kg of steam to the total energy supplied or heat drop per stage per kg of steam.
- It is the product of blade and nozzle efficiency.
ηstage = ηblade × ηnozzle
Calculation:
Given:
ηblade = 78%, ηstage = 65%
∵ ηstage = ηblade × ηnozzle
⇒ 0.65 = 0.78 × ηnozzle
⇒ ηnozzle = 0.8333 = 83.33%
Last updated on May 28, 2025
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