Analysis of the effects of design pressure ratio per stage and off-design efficiency on the operating range of multistage axial-flow compressors /
Melvyn Savage and Willard R. Westphal.

Description

Main Author

Savage, Melvyn.

Related Names

Westphal, Willard R.
United States. National Advisory Committee for Aeronautics.

Language(s)

English

Published

Washington, D.C. : National Advisory Committee for Aeronautics, 1950.

Subjects

Mechanical efficiency.
Compressors > Compressors / Performance.
Axial flow compressors > Axial flow compressors / Blades.

Summary

Multistage compressors composed of high-pressure-ratio stages have higher over-all off-design efficiencies and a wider operating range than those made up of low-pressure-ratio stages if the blade-row efficiency curves for the two cases are assumed to be somewhat similar.
An analysis is presented of how the operating range and over-all efficiency of a multistage axial-flow compressor are affected by the off-design efficiency characteristics of the blade row. General analytic expresssions describing the off-design performance of a blade row are presented. These expressions are analyzed and the effects of design pressure ratio per stage and off-design blade-row efficiency on the range are discussed.

Note

NACA TN No. 2248
"December 1950."

Physical Description

33 p. : ill. ; 28 cm.

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