Abstract
A detailed new methodology is presented to address non-homogeneous fugitive sources. The methodology involves a unique configuration, in which the main measurement path of the Open-Path FTIR system, located downwind from the source, is divided into several secondary paths. The division can be made by retroreflectors or small black bodies that are situated along the main measurement path, not necessarily in equal distances from each other. An inversion technique is suggested, using plume dispersion modeling techniques, to reconstruct the emission rates distribution from different sections of the fugitive source. Preliminary calculations coupled with dispersion modeling are used to determine the optimal configuration of the OP-FTIR measurements, under different meteorological conditions. Error magnification, due to inversion procedures, are analyzed to better define the appropriate measurement parameters. The error magnification analysis shows that the methodology can be applied in many measurement configurations. For three or four different emission rates from a non-homogeneous fugitive source, in several configurations of measurement, the inversion technique points at error magnification of no more than 35-40%. A field test to evaluate the proposed methodology is planned as the second phase in the research program.
Original language | English |
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Pages | 379-392 |
Number of pages | 14 |
State | Published - 1996 |
Externally published | Yes |
Event | Proceedings of the 1995 Specialty Conference - San Francisco, CA, USA Duration: 25 Sep 1995 → 27 Sep 1995 |
Conference
Conference | Proceedings of the 1995 Specialty Conference |
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City | San Francisco, CA, USA |
Period | 25/09/95 → 27/09/95 |