Research output: Contribution to journal › Article › peer-review
Aerosol diffusion battery : Analytical inversion from noisy penetration data. / Onischuk, Andrei A.; Valiulin, Sergey V.; Baklanov, Anatoly M. et al.
In: Measurement: Journal of the International Measurement Confederation, Vol. 164, 108049, 11.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Aerosol diffusion battery
T2 - Analytical inversion from noisy penetration data
AU - Onischuk, Andrei A.
AU - Valiulin, Sergey V.
AU - Baklanov, Anatoly M.
AU - Moiseenko, Petr P.
AU - Mitrochenko, Vladimir G.
AU - Dultseva, Galina G.
N1 - Publisher Copyright: © 2020 Elsevier Ltd Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/11
Y1 - 2020/11
N2 - A new simple algorithm of analytical inversion is proposed for the determination of aerosol particle size spectrum from diffusion battery penetrations. It is simpler and more transparent than analytical approaches published previously. The idea of the analytical solution is based on the operation principle of diffusion battery, which separates particles by their diffusivity into several classes. The size spectrum of particles in each class is approximated by a single-mode distribution, and the total size distribution is the sum of spectra from these classes. For this purpose, simple analytical formulas are derived to calculate the mean diameter of particles in each class from the diffusion battery penetrations. The advantage of the analytical approach is that it gives a one-to-one correspondence between the penetrations and the resulting spectrum without the necessity of complex mathematical processing, in contrast to the traditionally used numerical methods of solution of the inverse problem. However, experimental errors from the fluctuations of aerosol concentration can make the measured penetrations incompatible with any spectrum. Therefore, a smoothing procedure is proposed, which transforms incompatible penetrations into compatible ones within corridor of experimental errors.
AB - A new simple algorithm of analytical inversion is proposed for the determination of aerosol particle size spectrum from diffusion battery penetrations. It is simpler and more transparent than analytical approaches published previously. The idea of the analytical solution is based on the operation principle of diffusion battery, which separates particles by their diffusivity into several classes. The size spectrum of particles in each class is approximated by a single-mode distribution, and the total size distribution is the sum of spectra from these classes. For this purpose, simple analytical formulas are derived to calculate the mean diameter of particles in each class from the diffusion battery penetrations. The advantage of the analytical approach is that it gives a one-to-one correspondence between the penetrations and the resulting spectrum without the necessity of complex mathematical processing, in contrast to the traditionally used numerical methods of solution of the inverse problem. However, experimental errors from the fluctuations of aerosol concentration can make the measured penetrations incompatible with any spectrum. Therefore, a smoothing procedure is proposed, which transforms incompatible penetrations into compatible ones within corridor of experimental errors.
KW - Aerosol
KW - Aerosol characterization
KW - Diffusion battery
KW - Inverse problem
KW - Nanoparticles
KW - CALIBRATION
KW - DESIGN
KW - PARTICLE-SIZE DISTRIBUTION
KW - FIBROUS FILTERS
KW - DEPOSITION
KW - ALGORITHM
KW - RETRIEVAL
KW - DISTRIBUTIONS
UR - http://www.scopus.com/inward/record.url?scp=85086827501&partnerID=8YFLogxK
U2 - 10.1016/j.measurement.2020.108049
DO - 10.1016/j.measurement.2020.108049
M3 - Article
AN - SCOPUS:85086827501
VL - 164
JO - Measurement: Journal of the International Measurement Confederation
JF - Measurement: Journal of the International Measurement Confederation
SN - 0263-2241
M1 - 108049
ER -
ID: 24567754