During flow through a nozzle, no heat is supplied or rejected by the steam.

More Questions from Steam Nozzles and Turbines

• Which of the following statement is correct?
• Steam turbines may be classified according to
• In a nozzle, the effect of supersaturation is to increase the dryness fraction of steam.
• In a nozzle, the effect of supersaturation is to
• For a Parson's reaction turbine, if α1 and α2 are fixed blade angles at inlet and exit respectively and β1 and β2 are the moving blade angles at entrance and exit respectively, then
• When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle.
• 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)
• The expansion of steam in a nozzle follows
• In a 50% reaction turbine stage, tangential component of absolute velocity at rotor inlet is 537 m/s and the blade velocity is 454 m/s. The power output in kW of steam will be
• The stage efficiency is the ratio of energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam.

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