Influence of disturbing part on measurement of the standard for cryogenic flow rate measurement using LDV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F19%3AN0000139" target="_blank" >RIV/00177016:_____/19:N0000139 - isvavai.cz</a>
Result on the web
<a href="http://flomeko2019.lnec.pt/after_conference.html" target="_blank" >http://flomeko2019.lnec.pt/after_conference.html</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Influence of disturbing part on measurement of the standard for cryogenic flow rate measurement using LDV
Original language description
Disturbing parts situated on upstream of the flowmeter have influence on inlet velocity field. This change on the inlet of the flowmeter may influence measurement accuracy of the flowmeter. The aim of this article is to determine influence of disturbing parts on the measurement. Typical disturbing part situated on upstream of the flowmeter is elbow, swirl, half-plate, valve etc. The influences will be determined the standard for cryogenic flow rate measurement using LDV which was developed for measurement of the flow rate of liquefied natural gas (LNG) and other cryogenic fluids. The measuring system is simplistically special type of Venturi tube. Principle of this system is measurement of velocity profile using laser doppler velocimeter (LDV) behind the nozzle where the velocity profile is flat. After that the flow rate is calculated from measured velocity profile and diameter of nozzle throat. The influence of disturbing part on accuracy of the measurement will be determined by using numerical simulation. The determination of rate of the influence will be carried out by comparison of numerical simulation with and without the disturbing part. The simulation will be carried out for several disturbing parts.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
20704 - Energy and fuels
Result continuities
Project
<a href="/en/project/8B17003" target="_blank" >8B17003: Metrological support for LNG and LBG as a transport fuel</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