- Tytuł:
- Effect of flow pulsations on the accuracy of differential pressure flowmeters
- Autorzy:
-
Kostyk, I.
Matiko, F.
Fedoryshyn, R. - Powiązania:
- https://bibliotekanauki.pl/articles/115923.pdf
- Data publikacji:
- 2017
- Wydawca:
- Fundacja na Rzecz Młodych Naukowców
- Tematy:
-
flow
pulsations
impulse line
resonance
error
differential pressure flowmeter
przepływ
pulsacje
linia impulsu
rezonans
błąd
przepływomierz różnicowy - Opis:
- This work deals with investigation of influence of flow pulsation on the accuracy of gas flow rate and volume measurement by means of the differential pressure flow meters. Experimental studies of the step response curves of an impulse line with a pressure transducer (PT) were carried out with application of a high-frequency analog-to-digital converter of the pressure signal in the PT chamber. Mathematical model of an impulse line with a PT was built. This model provides simulation and investigation of the transient processes with high accuracy. The influence of the impulse line design (length, diameter) on the step response curves and on the frequency response curves as well as on the resonant frequency of the oscillating system (an impulse line with a PT chamber) was studied. The systematic errors of flow rate and volume measurement due to the resonance in the impulse lines which was caused by flow pulsation were simulated and studied for an acting differential pressure natural gas metering system. On the basis of the calculation results it was defined that amplification of the amplitude of the oscillating signal of the differential pressure due to the resonance may lead to a negative systematic error of gas volume measurement. The systematic errors of gas flow rate and volume measurement caused by the flow pulsation can be reduced by choosing the correct design of the impulse lines in order to avoid the resonance.
- Źródło:
-
Challenges of Modern Technology; 2017, 8, 1; 23-31
2082-2863
2353-4419 - Pojawia się w:
- Challenges of Modern Technology
- Dostawca treści:
- Biblioteka Nauki
Artykuł