Influence of heat exchange processes on the accuracy of natural gas volume measurement
Conference: Sensoren und Messsysteme 2010 - 15. ITG/GMA-Fachtagung
05/18/2010 - 05/19/2010 at Nürnberg
Proceedings: Sensoren und Messsysteme 2010
Pages: 5Language: englishTyp: PDFPersonal VDE Members are entitled to a 10% discount on this title
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.