Accession Number:

AD0736866

Title:

Combustion with Total Pressure Increase.

Descriptive Note:

Doctoral thesis,

Corporate Author:

SHEFFIELD UNIV (ENGLAND) DEPT OF FUEL TECHNOLOGY AND CHEMICAL ENGINEERING

Personal Author(s):

Report Date:

1970-09-01

Pagination or Media Count:

141.0

Abstract:

Combustion with pressure increase is shown to be a means of achieving a very substantial increase in the efficiency of the gas turbine cycle. In this research a first order travelling tangential wave is utilized. The first order to the travelling tangential wave is known, to be capable of particularly high non-dimensional pressure amplitudes, as well as capable of producing continuous pressure increases instead of pulsations. A simple model cavity is used to study the oscillation, and leads to an unambiguous method of identification of the first order travelling tangential wave. Novel means of exciting the wave are attempted. The method of angled jets is shown to be capable of driving the oscillation to high 50 peak to peak non-dimensional pressure amplitude. The Vernier Valve, a new invention, also gives rise to the oscillation. Author

Subject Categories:

  • Combustion and Ignition
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE