Correction of wet gas flow measurements applying standard orifice

Tomaszewska-Wach, Barbara; Rząsa, Mariusz

doi:10.2495/cmem-v8-n2-175-185

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…On the basis of the experimental data, an empirical relation was developed for each of the investigated orifices. The correction method is discussed by application of the example of the standard orifice [ 31 ].…”

Section: Results Of Experiments For Wet Gasmentioning

confidence: 99%

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A Correction Method for Wet Gas Flow Metering Using a Standard Orifice and Slotted Orifices

Tomaszewska-Wach

Rząsa

2021

Sensors

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Flow measurements that utilize differential pressure meters are commonly applied in industry. In such conditions, gas flow is often accompanied by liquid condensation. For this reason, errors occur in the metering process that can be attributed to the fluctuations in continuous phase parameters in the flow. Furthermore, the occurrence of a dispersed phase results in flow disturbance and dynamic pressure pulsations. For the above reasons, new methods and tools are sought with the purpose of performing measurements of gas-liquid flows providing measurement results that can be considered as fairly accurate in the cases when flow involves a liquid phase form. The paper reports the results of a study involving measurement of wet gas flow using differential pressure flowmeters. The experiments were conducted for three constant mass air flow rates equal to 0.06, 0.078 and 0.086 kg/s. After stabilization of the air flow rates, water was fed into the pipe with flow rates in the range from 0.01 to 0.16 kg/s. The research involved a standard orifice and three types of slotted orifices with various slot arrangements and geometries. The analysis focused on the effect of orifice geometry on the flow metering results. On the basis of the results, it was found that the slotted orifice generates smaller differential pressure values compared to the standard orifice. The water mass fraction in the gas leads to overestimated results of measurements across the flowmeter. Regardless of the type of the orifice, is necessary to undertake a correction of the results. The paper proposes a method of gas mass flow correction. The results were compared with the common over-reading correction models available in the literature.

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Section: Results Of Experiments For Wet Gasmentioning

confidence: 99%

“…Figure 8 contains the results of the dependence of the variations in the values of A k , B k and C k factors depending on the value of the differential pressure corresponding to various flow rates of gas. The equations were developed on the basis of the experimental data obtained for an air-water mixture [ 31 ].…”

Section: Results Of Experiments For Wet Gasmentioning

confidence: 99%

A Correction Method for Wet Gas Flow Metering Using a Standard Orifice and Slotted Orifices

Tomaszewska-Wach

Rząsa

2021

Sensors

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A Review of Wet Gas Flow Metering Correlation

Adenubi

Appah

Okafor

et al. 2021

Day 3 Wed, August 04, 2021

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Entrained liquids in produced natural gas introduce flow-prediction errors in gas metering; hence there is a need to correct flowmeters’ response to these errors. The development of improved wet gas flow correlations is an effective means of optimizing the predictive capabilities of these meters. This study reviews selected wet gas flow correlations, assesses their merits and demerits, and offers novel options and possibilities for developing highly optimized wet gas correlations for industrial applications. Prospects and possibilities for developing highly optimized wet gas flow correlations are also suggested in this paper, resulting in a significant expansion of the use of wet gas flow meters. These possibilities will include model development and experimental investigation of wet gas flows under relatively high-pressure operating conditions.

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Correction of wet gas flow measurements applying standard orifice

Cited by 2 publications

References 18 publications

A Correction Method for Wet Gas Flow Metering Using a Standard Orifice and Slotted Orifices

A Correction Method for Wet Gas Flow Metering Using a Standard Orifice and Slotted Orifices

A Review of Wet Gas Flow Metering Correlation

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