Design and performance characteristics of a condensation particle counter UF-02proto
In this paper we present a design of a new swirling flow condensation particle counter UF-02proto, which has a continuous sampling flow. The performance and characteristics of the instrument were investigated. We studied experimentally the concentration range of the instrument and the detection effi...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/578305 2024-09-09T19:34:21+00:00 Design and performance characteristics of a condensation particle counter UF-02proto Mordas, G. Kulmala, M. Petäjä, T. Aalto, P. P. Matulevicius, V. Grigoraitis, V. Ulevicius, V. Grauslys, V. Ukkonen, A. Hämeri, K. 2024-06-27T13:44:57Z 543-552 application/pdf http://hdl.handle.net/10138/578305 eng eng Boreal Environment Research Publishing Board Boreal Environment Research 1239-6095 1797-2469 6 10 http://hdl.handle.net/10138/578305 Suomen ympäristökeskus CC BY 4.0 openAccess Artikkeli lehdessä 2024 ftunivhelsihelda 2024-08-21T23:48:04Z In this paper we present a design of a new swirling flow condensation particle counter UF-02proto, which has a continuous sampling flow. The performance and characteristics of the instrument were investigated. We studied experimentally the concentration range of the instrument and the detection efficiency as a function of particle diameter for silver particles. The lower cut-off size of the CPC, i.e. the limiting size when 50% of the particles are successfully accounted for, was determined to be 4.35–4.46 nm, depending slightly on a form of a fitted exponential step-function. The counting efficiency of the CPC at high particle concentrations was experimentally investigated using 20 nm silver particles. The maximum observable number concentration with a single particle counting method was approximately 100000 cm–3 with an accuracy of 20%. The operation of the CPC UF-02proto was also compared with that of a commercially available CPC when operating both instruments in parallel. The CPC proved to be suitable for a variety of applications with a wide range of particle concentrations and particle sizes. Article in Journal/Newspaper Boreal Environment Research HELDA – University of Helsinki Open Repository |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
description |
In this paper we present a design of a new swirling flow condensation particle counter UF-02proto, which has a continuous sampling flow. The performance and characteristics of the instrument were investigated. We studied experimentally the concentration range of the instrument and the detection efficiency as a function of particle diameter for silver particles. The lower cut-off size of the CPC, i.e. the limiting size when 50% of the particles are successfully accounted for, was determined to be 4.35–4.46 nm, depending slightly on a form of a fitted exponential step-function. The counting efficiency of the CPC at high particle concentrations was experimentally investigated using 20 nm silver particles. The maximum observable number concentration with a single particle counting method was approximately 100000 cm–3 with an accuracy of 20%. The operation of the CPC UF-02proto was also compared with that of a commercially available CPC when operating both instruments in parallel. The CPC proved to be suitable for a variety of applications with a wide range of particle concentrations and particle sizes. |
format |
Article in Journal/Newspaper |
author |
Mordas, G. Kulmala, M. Petäjä, T. Aalto, P. P. Matulevicius, V. Grigoraitis, V. Ulevicius, V. Grauslys, V. Ukkonen, A. Hämeri, K. |
spellingShingle |
Mordas, G. Kulmala, M. Petäjä, T. Aalto, P. P. Matulevicius, V. Grigoraitis, V. Ulevicius, V. Grauslys, V. Ukkonen, A. Hämeri, K. Design and performance characteristics of a condensation particle counter UF-02proto |
author_facet |
Mordas, G. Kulmala, M. Petäjä, T. Aalto, P. P. Matulevicius, V. Grigoraitis, V. Ulevicius, V. Grauslys, V. Ukkonen, A. Hämeri, K. |
author_sort |
Mordas, G. |
title |
Design and performance characteristics of a condensation particle counter UF-02proto |
title_short |
Design and performance characteristics of a condensation particle counter UF-02proto |
title_full |
Design and performance characteristics of a condensation particle counter UF-02proto |
title_fullStr |
Design and performance characteristics of a condensation particle counter UF-02proto |
title_full_unstemmed |
Design and performance characteristics of a condensation particle counter UF-02proto |
title_sort |
design and performance characteristics of a condensation particle counter uf-02proto |
publisher |
Boreal Environment Research Publishing Board |
publishDate |
2024 |
url |
http://hdl.handle.net/10138/578305 |
genre |
Boreal Environment Research |
genre_facet |
Boreal Environment Research |
op_relation |
Boreal Environment Research 1239-6095 1797-2469 6 10 http://hdl.handle.net/10138/578305 Suomen ympäristökeskus |
op_rights |
CC BY 4.0 openAccess |
_version_ |
1809903843656335360 |