Actions for Data reduction for aerosol coagulation experiments with wall loss. Topical report No. 1.

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Data reduction for aerosol coagulation experiments with wall loss. Topical report No. 1.

Author
Loos, H. G.
Published
United States : [publisher not identified], 1981
Springfield, Va.: National Technical Information Service, [approximately 1981]
Physical Description
microfiche : negative ; 11 x 15 cm

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Summary
A method is described for the calculation of the aerosol coagulation coefficient and the wall loss coefficient from measured values of the aerosol concentration in an ageing balloon, without the introduction of a linearization or an apparent coagulation coefficient in the manner of Rooker and Davies. The data reduction method constitutes a single grand fit of all the data for one size balloon to a theoretical surface in the space of data 1/n/sub 0/, 1/n, and t, where n is the aerosol concentration and t is the time. The method may be described as a least squared distances fit, and it uses the metric defined in data space by the noise. The data reduction technique is applied to the Rooker-Davies large balloon data for three types of noise in the aerosol concentration data: fixed standard deviation, fixed relative standard deviation, and Poisson noise. The resulting values for the coagulation coefficient for particles of .005 ..mu..m medium radius are respectively 33 x 10/sup -10/, 40 x 10/sup -10/, and 36 x 10/sup -10/ cm/sup 3//particle sec, as compared with 51.1 x 10/sup -10/ cm/sup 3//particle sec as found by Rooker and Davies.
Report Numbers
DE83015812; DOE/MC/14373-T1
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: AC21-80MC14373
OSTI Identifier 6124788
Research organization: Laguna Research Lab., Laguna Beach, CA (USA).
View MARC record | catkey: 47333846