Mechanical Engineering - Steam Nozzles and Turbines - Discussion
Discussion Forum : Steam Nozzles and Turbines - Section 1 (Q.No. 11)
11.
The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be
Discussion:
15 comments Page 2 of 2.
Kavishwar gaikwad said:
1 decade ago
DoR = Enthalpy drop in moving/enthalpy drop in moving+enthalpy drop in fixed blade.
Nikunj said:
1 decade ago
How its 0.4?
Lakshmi Kant said:
1 decade ago
Degree of reaction or reaction ratio (R) is defined as the ratio of static pressure drop in the rotor to the static pressure drop in the stage or as the ratio of static enthalpy drop in the rotor to the static enthalpy drop in the stage.
i.e. R = 0.4 for this problem.
i.e. R = 0.4 for this problem.
Guddi kumari said:
1 decade ago
Yes, degree of reaction=isentropic entropy drop in moving blade of turbine/enthalpy drop in fixed blade turbine.
Umakant sahu said:
1 decade ago
Degree of reaction = isentropic enthalpy drop in moving blade of turbine/isentropic enthalpy drop in fixed blad of turbine.
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