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An Investigation into the Performance of a Venturi in Two-Phase Helium Flow

  • X. Huang
  • S. W. Van Sciver
Chapter
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 39)

Abstract

The present paper discusses the use of venturi flow meters for measurement of vapor quality of helium two-phase flow. Tests were performed by connecting two identical venturis with 2.29 mm throat and 4.57 mm inlet diameters in series with a vertical two-phase helium flow loop. With one venturi operating in liquid and the second one operating in two-phase regime as controlled by an inline heater, the ratio of the pressure drop across the two venturis is found to be well correlated to the vapor quality of the two-phase flow. Data presented are for vertical upflow of two-phase helium at 4.2 K with vapor quality between zero and 100% under both forced flow and natural circulating flow conditions. The forced flow rates, controlled by a flexible bellows acting as a positive displacement pump, range from 1.0 g/s up to 2.5 g/s. Within the parameter range covered in this test, the result can be well described by the homogeneous model.

Keywords

Pressure Drop Mass Flow Rate Void Fraction Discharge Coefficient Forced Flow 
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References

  1. 1.
    A. Khalil, Cryogenic two-phase flow characteristics of helium I in vertical tubes, Ph.D. dissertation, University of Wisconsin-Madison(1978).Google Scholar
  2. 2.
    D. Hagedorn et al, Monitor for the quality factor in two-phase helium flow using a low temperature oscillator, Adv. Cryo. Engr. 31: 1299(1986).CrossRefGoogle Scholar
  3. 3.
    A. I. Alexeyev, et al, Application of radio frequency method to measurements in cryogenics, Cryogenics 31: 1020(1991).CrossRefGoogle Scholar
  4. 4.
    T. Haruyama, Optical method for measurement of quality and flow patterns in helium two-phase flow, Cryogenics 27: 450(1987).CrossRefGoogle Scholar
  5. 5.
    J. C.Brubaker, J. D. Fuerst and B. L. Norris, Characterization of two-phase flow in a Fermilab Tevatron satellite refrigerator, Adv. Cryogenic Engr. 37: 171(1991).Google Scholar
  6. 6.
    D. B. Collins and M. Gacesa, Measurement of steam quality in two-phase upflow with venturimeters and orifice plates, J. Basic Engr., p. 11(1971)Google Scholar
  7. 7.
    R. Frank, J. Mazars and R. Ricque, Determination of mass flowrate and quality using a turbine meter and a venturi, Heat and Fluid Flow in Water Reactor Safety, The Institute of Mech. Engr., London, p.63(1977)Google Scholar
  8. 8.
    S. W. Van Sciver, et al, He II flowmetering, Cryogenics 31: 75(1991).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • X. Huang
    • 1
  • S. W. Van Sciver
    • 1
  1. 1.National High Magnetic Field LaboratoryFlorida State UniversityTallahasseeUSA

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