Flow rate measurement in stacks with cyclonic flow - Error estimations using CFD modelling

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F18%3AN0000035" target="_blank" >RIV/00177016:_____/18:N0000035 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.measurement.2018.06.032" target="_blank" >https://doi.org/10.1016/j.measurement.2018.06.032</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.measurement.2018.06.032" target="_blank" >10.1016/j.measurement.2018.06.032</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Flow rate measurement in stacks with cyclonic flow - Error estimations using CFD modelling

Popis výsledku v původním jazyce

Two methods of flow measurement in stacks are investigated to determine their errors in presence of cyclonic flow. One method - based on velocity measurements with a Pitot tube in a grid of points - is the standard reference method according to EN ISO 16911-1. The second method - ultrasonic flow measurement - is often used as the automated measurement system in stacks according to EN ISO 16911-2. Several typical stack configurations are considered and the flow field in the stacks is obtained using validated computational fluid dynamics (CFD) modelling with OpenFoam software. We show that possible errors of the standard reference method due to the cyclonic flow are significant compared to the requirements of the EU's Emissions Trading System. For the ultrasonic flow meter we compare various configurations (number, orientation, position) of the ultrasound beams and we demonstrate the flow profile pre-investigation by CFD as prescribed in section 8.3 of EN ISO 16911-2.

Název v anglickém jazyce

Flow rate measurement in stacks with cyclonic flow - Error estimations using CFD modelling

Popis výsledku anglicky

Two methods of flow measurement in stacks are investigated to determine their errors in presence of cyclonic flow. One method - based on velocity measurements with a Pitot tube in a grid of points - is the standard reference method according to EN ISO 16911-1. The second method - ultrasonic flow measurement - is often used as the automated measurement system in stacks according to EN ISO 16911-2. Several typical stack configurations are considered and the flow field in the stacks is obtained using validated computational fluid dynamics (CFD) modelling with OpenFoam software. We show that possible errors of the standard reference method due to the cyclonic flow are significant compared to the requirements of the EU's Emissions Trading System. For the ultrasonic flow meter we compare various configurations (number, orientation, position) of the ultrasound beams and we demonstrate the flow profile pre-investigation by CFD as prescribed in section 8.3 of EN ISO 16911-2.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20700 - Environmental engineering

Projekt

<a href="/cs/project/8B17009" target="_blank" >8B17009: Metrology for air pollutant emissions</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Measurement

ISSN

0263-2241

e-ISSN

1873-412X

Svazek periodika

129

Číslo periodika v rámci svazku

December 2018

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

167-183

Kód UT WoS článku

000443834700016

EID výsledku v databázi Scopus

2-s2.0-85049803996