Predictive Model for Jet Engine Test Cell Opacity

Abstract

A computer program (written in FORTRAN for a CDC 6600) was developed to predict the plume opacity of jet engine test cells. The data input required for the model includes: the particle density, concentration, and size distribution in the exhaust gas, and the effective stack diameter. Previous data obtained for J-57 engines were used to test the model, and the difference between the theoretical and measured transmittance was generally within one percent. The program also predicts the theoretical effect of using electrostatic precipitators or venturi scrubbers to treat the exhaust emissions. These predictions indicate that control devices larger than the test cells would have to be installed to even achieve a minimal effect on the observed visibility. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1981
Accession Number
ADA117585

Entities

People

  • Gordon A. Lewandowski

Organizations

  • New Jersey Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Pollution
  • Bessel Functions
  • Computer Programs
  • Computers
  • Engineering
  • Engines
  • Equations
  • Exhaust Gases
  • Formats
  • Fuel Additives
  • Jet Engines
  • Particle Size
  • Refractive Index
  • Test Facilities
  • Turbines

Readers

  • Computational Modeling and Simulation
  • Computer Science.
  • Internal Combustion Engine (ICE) Technology.