Accession Number:

AD0741570

Title:

The Control of Oxides of Nitrogen Emissions from Aircraft Gas Turbine Engines. Volume 3. The Flow Model

Descriptive Note:

Final rept. Jun 1970-Dec 1971

Corporate Author:

NORTHERN RESEARCH AND ENGINEERING CORP WOBURN MA

Report Date:

1971-12-01

Pagination or Media Count:

173.0

Abstract:

The objective of the study was to develop criteria for use in the design of aircraft gas turbine combustion chambers to minimize nitrogen oxide emissions. The approach adopted involved the development of a mathematical model of NOx emission from aircraft engine combustors a parametric analysis, using the model, to determine the sensitivity of NOx emissions to variations of model parameters and engine design variables evaluation of critical model parameters by means of experimental measurements and the incorporation of the model into combustor design methods to provide guidelines for minimizing NOx emission while maintaining other performance and emission characteristics. The report describes combustion and flow processes in gas turbine combustors and a computer program GASNOX for calculating gas properties and NO concentrations throughout a combustor. This program is based upon a three-zone, heterogeneous model of gas turbine combustor operation. Program GASNOX is used with input data from Program NOXRAT to calculate NO emission rates.

Subject Categories:

  • Combustion and Ignition
  • Jet and Gas Turbine Engines
  • Air Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE