Development of a new primary humidity measurement standard
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F19%3AN0000015" target="_blank" >RIV/00177016:_____/19:N0000015 - isvavai.cz</a>
Alternative codes found
RIV/00177016:_____/20:N0000016
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1361-6501/ab4a54" target="_blank" >https://iopscience.iop.org/article/10.1088/1361-6501/ab4a54</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-6501" target="_blank" >10.1088/1361-6501</a>
Alternative languages
Result language
angličtina
Original language name
Development of a new primary humidity measurement standard
Original language description
A new primary humidity generator was developed at the National Standards Authority of Ireland (NSAI). The principles of operation and overall design of the generator are discussed. The flow regime within the saturators was analysed using computational fluid dynamics (CFD) to determine if sufficient mixing takes place within the final saturator. This was later investigated by experiment and it was found that sufficient mixing takes place for flow rates up to 3 l min−1 at standard flow conditions of 101 325 Pa and 293.15 K. The uncertainty due to non-ideal saturation at 90 °C dp is discussed. This uncertainty was analysed with respect to the effect that the flow speed and latent heating in the saturators has on the saturation efficiency, separately. The uncertainty associated with saturation efficiency at 90 °C dew point was estimated from the temperature gradients along the saturation path arising due to latent heating effects. The standard uncertainty due to non-ideal saturation was found to be ±3 mK dp.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20205 - Automation and control systems
Result continuities
Project
<a href="/en/project/8B16006" target="_blank" >8B16006: Expansion of European research capabilities in humidity measurement</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Measurement Science and Technology
ISSN
09570233
e-ISSN
13616501
Volume of the periodical
2020
Issue of the periodical within the volume
31
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
1-10
UT code for WoS article
000499383000001
EID of the result in the Scopus database
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