대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)
- 제23권7호
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- Pages.911-917
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- 1999
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- 1226-4881(pISSN)
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- 2288-5324(eISSN)
DOI QR Code
소닉노즐을 이용한 천연가스 유량측정에서 임계유동인자 계산 및 국제비교 결과
Evaluation of Critical Flow Factor in Natural Gas Flow Measurement Using Sonic Nozzle and International Comparison Results
- 투고 : 1999.02.01
- 발행 : 1999.07.01
초록
The sonic nozzle is widely used as reference device for calibrating flowmeters In gas flow measurement and its use requires the Critical Flow Factor(CFF) based on the thermodynamic properties of the gas at the nozzle throat. ISO-9300 provides the calculating method of the factor. But since the CFF from this method show an error over