Accession Number:

AD0741914

Title:

Gas Turbine Cycle Calculations: Experimental Verificaiton of Off- Design-Point Performance Predictions for a Two-Spool Turbojet with Various Air Bleeds

Descriptive Note:

Aeronautical rept.,

Corporate Author:

NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF MECHANICAL ENGINEERING

Personal Author(s):

Report Date:

1971-11-01

Pagination or Media Count:

82.0

Abstract:

As part of a continuing program of gas turbine cycle calculations, the Engine Laboratory of the National Research Council of Canada has proposed a simplified method for calculating off-design-point performance of turbojet and turbofan engines, both at sea level static and at altitude flight conditions. This method specifically implies constancy of component efficiencies and linearity of corrected mass flow with corrected engine speed. During a series of tests on a J-75 two-spool turbojet engine, experimental data were gathered at part-throttle conditions, and subsequently with compressor bleed extraction and with propelling nozzle area change.

Subject Categories:

  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE