Turbine flowmeter response to transitional flow regimes

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

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.

• Language: English
• Keywords: turbine flowmeter, dynamic response, Reynolds number
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Article acceptance date: 20.11.2017
• Year: 2018
• Number of pages: Str. 18-22
• Numbering: Vol. 59
• PID: 20.500.12556/RUL-126751
• UDC: 532.57(045)
• ISSN on article: 0955-5986
• DOI: 10.1016/j.flowmeasinst.2017.11.006
• COBISS.SI-ID: 15857179
• Publication date in RUL: 05.05.2021

Record is a part of a journal

• Title: Flow measurement and instrumentation
• Shortened title: Flow meas. instrum.
• Publisher: Elsevier
• ISSN: 0955-5986
• COBISS.SI-ID: 169755

Licences

• License: CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
• Link: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Description: The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
• Licensing start date: 01.03.2018

Secondary language

• Language: Slovenian
• Keywords: turbinski merilnik pretoka, dinamični odziv, Reynoldsovo število