Turbine flowmeter response to transitional flow regimes

Džemić, Zijad (avtor), Širok, Brane (avtor), Bizjan, Benjamin (avtor)

In this paper, acceleration and deceleration performance of turbine flowmeters was investigated in transitional flow regimes. Different flow meters and peak gas flow rates were used, with a step flow transition induced by rapid closing and reopening of the pipeline valve. Hotwire anemometry was employed as a reference method to assess the dynamic response of turbine flowmeters. Results of this study suggest a good dynamic response of turbine flowmeters in accelerating flows, with only a slight delay of the turbine rotation. However, in decelerating flows, the response of the flowmeter turbine was found to be slow, with characteristic time constants up to 35 s and large resulting over-registration of transferred gas volume. Our findings were quantified by multiple regression models for flowmeter response times and over-registered volumes, which were both find to drop with Reynolds number and increase with the flowmeter size. Understanding dynamic response is essential to evaluate dynamic errors and evaluate overall measurement uncertainty.

• Jezik: Angleški jezik
• Ključne besede: turbine flowmeter, dynamic response, Reynolds number
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Datum sprejetja članka: 20.11.2017
• Leto izida: 2018
• Št. strani: Str. 18-22
• Številčenje: Vol. 59
• PID: 20.500.12556/RUL-126751
• UDK: 532.57(045)
• ISSN pri članku: 0955-5986
• DOI: 10.1016/j.flowmeasinst.2017.11.006
• COBISS.SI-ID: 15857179
• Datum objave v RUL: 05.05.2021

Gradivo je del revije

• Naslov: Flow measurement and instrumentation
• Skrajšan naslov: Flow meas. instrum.
• Založnik: Elsevier
• ISSN: 0955-5986
• COBISS.SI-ID: 169755

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
• Začetek licenciranja: 01.03.2018

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: turbinski merilnik pretoka, dinamični odziv, Reynoldsovo število