Optimization of injected radiotracer volume for flow rate measurement in closed conduits
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00347237" target="_blank" >RIV/68407700:21340/20:00347237 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.2298/HEMIND20050325P" target="_blank" >https://doi.org/10.2298/HEMIND20050325P</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2298/HEMIND20050325P" target="_blank" >10.2298/HEMIND20050325P</a>
Alternative languages
Result language
angličtina
Original language name
Optimization of injected radiotracer volume for flow rate measurement in closed conduits
Original language description
In chemical processes it is essential that the flow in the process is accurately defined. Fluid velocity measurements are important for fluid flow quality performance in flow systems. This study focuses on determination of the volumetric flow rate and its standard (relative) deviation for calibration of conventional flow meters by using a radiotracer approach. The measurements for flow meter calibration were performed at a pilot-scale flow rig using Technetium-99 m (99mTc) as a radiotracer in the form of pertechnetate ion (99mTcO4-). The measured data were analyzed, and precision of the experimental setup was investigated under two different approaches – IAEA’s RTD software and sum approximation of raw data. For the first time, the variation of standard deviation of calculated flow rate with the injection volume and activity of the radiotracer was determined. Plug flow with axial dispersion was used to simulate the measured RTD curves and investigate the flow dynamics of the flowing water. The results of the study have shown the possibility of in situ calibration of flow meters with a relative error lower than 1 %. They also revealed a slight dependency of the precision of output results on the injection volume as well as similar results for manual and specialized RTD software data processing.
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
20402 - Chemical process engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Hemijska Industrija
ISSN
0367-598X
e-ISSN
2217-7426
Volume of the periodical
74
Issue of the periodical within the volume
5
Country of publishing house
RS - THE REPUBLIC OF SERBIA
Number of pages
8
Pages from-to
305-312
UT code for WoS article
000587789800003
EID of the result in the Scopus database
2-s2.0-85096926118