Real-gas effects in the expansibility factor for subsonic differential-pressure flowmeters at high pressure

J. Finjord
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Abstract

Real-gas corrections in the expansibility factor are expressed by an equation of state (EOS). In this paper a virial EOS is introduced, with low-order virial coefficients calculated from a cubic EOS. The approach is composition-independent. EOS-dependent cancellations between real-gas effects are revealed. The current Intl. Organization for Standardization (ISO) standard is not always reliable for high-accuracy orifice measurements of gases with arbitrary composition.
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高压下亚音速差压流量计膨胀系数的实气效应
膨胀系数的实气修正用状态方程(EOS)表示。本文引入了一个由三次方程组计算低阶方程组系数的维里方程组。这种方法与组合无关。揭示了实际气体效应之间的eos相关消去。当前的国际标准。对于任意成分气体的高精度孔板测量,ISO标准并不总是可靠的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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