Active standard | Published: 23/03/2012

ISO/TR 11583:2012

Measurement of wet gas flow by means of pressure differential devices inserted in circular cross-section conduits
(Mesurage du débit de gaz humide au moyen d´appareils déprimogenes insérés dans des conduites de section circulaire)

Available languages: English

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Detail information

Designation: ISO/TR 11583:2012

Publication date: 23/03/2012

Pages: 26

Country: International technical standard

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Description / Abstract: ISO/TR 11583:2012 describes the measurement of wet gas with differential pressure meters. It applies to two-phase flows of gas and liquid in which the flowing fluid mixture consist of gas in the region of 95 % volume fraction or more. ISO/TR 11583:2012 is an extension of ISO 5167. The ranges of gases and liquids from which the equations in ISO/TR 11583:2012 were derived are given. It is possible that the equations do not apply to liquids significantly different from those tested, particularly to highly viscous liquids. Although the over-reading equations presented in ISO/TR 11583:2012 apply for a wide range of gases and liquids at appropriate gas-liquid density ratios, evaluating gas flow rates depends on information in addition to that required in single-phase flow: a measurement of the pressure loss can be sufficient; measurement of the liquid flow using tracers can be possible; the total mass flow rate may be known (this is more likely in a wet-steam flow than in a natural gas/liquid flow); in a wet-steam flow a throttling calorimeter can be used. Wet-gas measurement using Venturi tubes or orifice plates is covered in ISO/TR 11583:2012.

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