Influence of heat exchange processes on the accuracy of natural gas volume measurement
Konferenz: Sensoren und Messsysteme 2010 - 15. ITG/GMA-Fachtagung
18.05.2010 - 19.05.2010 in Nürnberg
Tagungsband: Sensoren und Messsysteme 2010
Seiten: 5Sprache: EnglischTyp: PDFPersönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt
Fedoryshyn, Roman; Matiko, Fedir; Pistun, Yevhen (Lviv Polytechnic National University, S. Bandery str., 12, Lviv, 79013, Ukraine)
This work deals with measurements of natural gas volume by means of pressure differential devices. Causes of additional errors of flow rate and volume measurement due to the influence of heat exchange processes are analysed and the additional errors of gas temperature measurement are classified. Mathematical models are developed to calculate the additional errors of gas temperature measurement and the subsequent errors of gas flow rate and volume measurement. Measures are proposed in order to eliminate the influence of heat exchange processes on the results of volume measurement in systems based on pressure differential devices and other metering systems where gas temperature is measured.