QUESTION 7 multi-stage axial flow turbine, and the pressure drop Air is expanded in a very small. Assuming that air behaves as a pressure-temperature relationships for the following processes: across each stage is perfect gas with ratio of specific heats y, derive A) Reversible adiabatic expansion: B) Irreversible adiabatic expansion, with small stage efficiency np; C) Reversible expansion in which the heat loss in each stage is a constant fraction k of the enthalpy drop in that stage.

Question
QUESTION 7
multi-stage axial flow turbine, and the pressure drop
Air is expanded in a
very small. Assuming that air behaves as a
pressure-temperature relationships for the following processes:
across each stage is
perfect gas with ratio of specific heats y, derive
A) Reversible adiabatic expansion:
B) Irreversible adiabatic expansion, with small stage efficiency np;
C) Reversible expansion in which the heat loss in each stage is a constant fraction k
of the enthalpy drop in that stage.

Image Transcription

QUESTION 7 multi-stage axial flow turbine, and the pressure drop Air is expanded in a very small. Assuming that air behaves as a pressure-temperature relationships for the following processes: across each stage is perfect gas with ratio of specific heats y, derive A) Reversible adiabatic expansion: B) Irreversible adiabatic expansion, with small stage efficiency np; C) Reversible expansion in which the heat loss in each stage is a constant fraction k of the enthalpy drop in that stage.

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