Predictive model for jet engine test cell opacity

A mathematical model was developed to predict the plume opacity of jet engine test cells (it assumes that the cause of the plume visibility, i.e. opacity, is carbon particles). The data input required for the model includes: the particle density, concentration, and size distribution in the exhaust g...

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Bibliographic Details
Published in:International journal of environmental studies 1984-04, Vol.22 (3-4), p.207-215
Main Author: Lewandowski, Gordon A.
Format: Article
Language:English
Subjects:
Applied sciences
Atmospheric pollution
density
emission control
emissions control
Exact sciences and technology
exhaust gases
jet engines
mathematical models
plumes
Pollution
scrubbers
visibility
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Summary:A mathematical model was developed to predict the plume opacity of jet engine test cells (it assumes that the cause of the plume visibility, i.e. opacity, is carbon particles). 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 model also predicts the theoretical effect of using a venturi scrubber to treat the exhaust emissions. These predictions indicate that even at the limits of operability, a scrubber would only achieve a minimal effect on the observed visibility.
ISSN:0020-7233
1029-0400
DOI:10.1080/00207238408710119