Primož Žibret (Avtor), Gregor Bobovnik (Avtor), Jože Kutin (Avtor)

Povzetek

The volumetric primary standard with a constant volume (pVTt) determines the flow rate from the rate of change of gas density in the defined measuring volume. The key element of the measuring system that uses the flying start–stop method is a diverter. This paper presents a time correction model that adapts the correction according to the diverting speed implemented in our pVTt system developed for flow rates smaller than 12 mg min$^{−1}$ . A detailed study of the diverter’s effects on the effective collection time and two methods for determining the time correction are presented. One is based on the ISO 4185 standard and the other on measurements of the dynamic pressure upstream of the diverter. A set of correction time measurements were made at different diversion speeds to define the correction model at a flow rate of 9 mg min$^{−1}$ . The results show very good agreement between the measurements with both methods and the defined correction model. Additional measurements were made at smaller flow rates and the results indicate the independence of the time correction from the measured flow rate.

Ključne besede

merjenje pretoka;časovna korekcija;preklopni element;flow rate measurement;time correction;diverter;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 532.57:681.586
COBISS: 109539075 Povezava se bo odprla v novem oknu
ISSN: 1424-8220
Št. ogledov: 190
Št. prenosov: 62
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: merjenje pretoka;časovna korekcija;preklopni element;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-12
Letnik: ǂVol. ǂ22
Zvezek: ǂiss. ǂ11
Čas izdaje: May 2022
DOI: 10.3390/s22114001
ID: 15468522
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