A Precise Gas Dilutor Based on Binary Weighted Critical Flows to Create NO2 Concentrations

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Abstract

A gas diluter based on critical orifices was built and evaluated. The gas diluter is capable of creating dilution ratios of 1:1400 at a total flow of 6.5 L/min. An extended uncertainty analysis of gas concentrations and dilution ratios according to the Guide to the Expression of Uncertainty in Measurement was conducted. A gas cylinder of 5.16 ppm NO2 with a relative uncertainty of 1.5% (k = 1) can be diluted down to a concentration of 3.69 ppb NO2 (dilution ratio of 1:1400) at an uncertainty of 1.9% (k = 1). The results are in good agreement with reference NO2 measurements, conducted with a chemiluminescence detector (CLD, European reference method EN14211; 2005).
Originalspracheenglisch
TitelA Precise Gas Dilutor Based on Binary Weighted Critical Flows to Create NO2 Concentrations
Seiten1-4
Band2
Auflage13
DOIs
PublikationsstatusVeröffentlicht - 7 Dez 2018

Publikationsreihe

NameProceedings
Herausgeber (Verlag)MDPI AG
ISSN (Print)2504-3900

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critical flow
dilution
gas
uncertainty analysis

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    Breitegger, P., & Bergmann, A. (2018). A Precise Gas Dilutor Based on Binary Weighted Critical Flows to Create NO2 Concentrations. in A Precise Gas Dilutor Based on Binary Weighted Critical Flows to Create NO2 Concentrations (13 Aufl., Band 2, S. 1-4). (Proceedings). https://doi.org/10.3390/PROCEEDINGS2130998

    A Precise Gas Dilutor Based on Binary Weighted Critical Flows to Create NO2 Concentrations. / Breitegger, Philipp; Bergmann, Alexander.

    A Precise Gas Dilutor Based on Binary Weighted Critical Flows to Create NO2 Concentrations. Band 2 13. Aufl. 2018. S. 1-4 (Proceedings).

    Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

    Breitegger, P & Bergmann, A 2018, A Precise Gas Dilutor Based on Binary Weighted Critical Flows to Create NO2 Concentrations. in A Precise Gas Dilutor Based on Binary Weighted Critical Flows to Create NO2 Concentrations. 13 Aufl., Bd. 2, Proceedings, S. 1-4. https://doi.org/10.3390/PROCEEDINGS2130998
    Breitegger P, Bergmann A. A Precise Gas Dilutor Based on Binary Weighted Critical Flows to Create NO2 Concentrations. in A Precise Gas Dilutor Based on Binary Weighted Critical Flows to Create NO2 Concentrations. 13 Aufl. Band 2. 2018. S. 1-4. (Proceedings). https://doi.org/10.3390/PROCEEDINGS2130998
    Breitegger, Philipp ; Bergmann, Alexander. / A Precise Gas Dilutor Based on Binary Weighted Critical Flows to Create NO2 Concentrations. A Precise Gas Dilutor Based on Binary Weighted Critical Flows to Create NO2 Concentrations. Band 2 13. Aufl. 2018. S. 1-4 (Proceedings).
    @inproceedings{539e044138e0477486322c80844b1671,
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    abstract = "A gas diluter based on critical orifices was built and evaluated. The gas diluter is capable of creating dilution ratios of 1:1400 at a total flow of 6.5 L/min. An extended uncertainty analysis of gas concentrations and dilution ratios according to the Guide to the Expression of Uncertainty in Measurement was conducted. A gas cylinder of 5.16 ppm NO2 with a relative uncertainty of 1.5{\%} (k = 1) can be diluted down to a concentration of 3.69 ppb NO2 (dilution ratio of 1:1400) at an uncertainty of 1.9{\%} (k = 1). The results are in good agreement with reference NO2 measurements, conducted with a chemiluminescence detector (CLD, European reference method EN14211; 2005).",
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    N2 - A gas diluter based on critical orifices was built and evaluated. The gas diluter is capable of creating dilution ratios of 1:1400 at a total flow of 6.5 L/min. An extended uncertainty analysis of gas concentrations and dilution ratios according to the Guide to the Expression of Uncertainty in Measurement was conducted. A gas cylinder of 5.16 ppm NO2 with a relative uncertainty of 1.5% (k = 1) can be diluted down to a concentration of 3.69 ppb NO2 (dilution ratio of 1:1400) at an uncertainty of 1.9% (k = 1). The results are in good agreement with reference NO2 measurements, conducted with a chemiluminescence detector (CLD, European reference method EN14211; 2005).

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