Pseudo Random Stimulus Response of Combustion Systems.

Abstract

Combustor modelling methods involving stirred reactor networks require information on the volumes, inter-connections, mixedness and flowrates of the individual reactors. It is here proposed that the response of the system to a pseudo-random binary sequence (PRBS) stimulus can be used advantageously to fulfill this need. A survey is presented of the theory of the technique and method of interpretation of the results. The practicability of the method has been invesitgated experimentally using a water model of a gas turbine combustor; salt solution tracer was introduced into the primary flow in a PRBS and the conductivity at different points throughout the chamber was used to determine the impulse response and Z-transform. The results confirmed the anticipated sensitivity of the technique. Finally, the extension of the technique to the quantitative identification of non-linear elements is presented. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1980
Accession Number
ADA101084

Entities

People

  • A. Turan
  • J. Swithenbank
  • P. Salib
  • S. A. Billings

Organizations

  • University of Sheffield

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Reactions
  • Combustion
  • Computers
  • Convolution Integrals
  • Data Science
  • Dynamics
  • Equations
  • Flow
  • Gas Turbines
  • Information Science
  • Linear Systems
  • Mathematical Models
  • Probability
  • Surveys
  • Three Dimensional
  • Time Intervals
  • Turbulent Mixing

Readers

  • Combustion science or combustion engineering.
  • Phased Array Antenna Design.
  • Theoretical Analysis.