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Performance of a venturi flow meter in two-phase helium flow

✍ Scribed by X. Huang; S.W. Van Sciver

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 706 KB
Volume: 36
Category: Article
ISSN: 0011-2275
DOI: 10.1016/0011-2275(96)88790-x

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✦ Synopsis

The performance of a venturi flow meter in vertical and horizontal two-phase helium flow is reported. In both flow configurations, tests were conducted by connecting two identical venturis of 2.29 mm throat and 4.57 mm inlet diameters in series with a twophase helium flow loop driven by a single-stroke bellows pump. With one venturi operating in single-phase liquid helium and one in two-phase helium, as controlled by an in-line heater, the ratio of the pressure drop across the two venturis is found to be well correlated with vapour quality. Vertical flow tests were performed under both forced flow and natural circulating flow conditions at 1.0 atm and at mass flow rates ranging from 1.0 to 2.5 g s-l. Horizontal flow tests were conducted at mass flow rates ranging from 0.5 to 2.0 g .s' and under system pressures between 0.65 and 1.2 atm. Within the parameter range covered in the present study, the performance of the venturi flow meter in two-phase helium flows can be well described by the homogeneous model regardless of the flow orientation.

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