MAPAN

, Volume 30, Issue 2, pp 119–123 | Cite as

Multiple Weighing Based Method for Realizing Flow

  • Shiv Kumar Jaiswal
  • Sanjay Yadav
  • Ravinder Agarwal
Original Paper

Abstract

The present paper describes a multiple weighing based measurement technique for water flow measurements. The developed technique has the potential for reducing the measurement errors significantly and in-turn improving the measurement uncertainty in the water flow calibration. The multiple weighing process reduces the mass measurement uncertainty and also the diverter error which is basically reduced due to larger collection time resulting from the larger mass of collected water. This method is particularly suitable for large flow rates. The theoretical interpretations and design details are described in this paper.

Keywords

Multiple weighing Double weighing tanks Error and uncertainty Mass flow rate Volume flow rate 

References

  1. [1]
    ISO 4185, Measurement of liquid flow in closed conduits—weighing methods, 1st Ed., ISO, Geneva (1980) 1–21.Google Scholar
  2. [2]
    ISO 9368-1, Measurement of liquid flow in closed conduits by weighing methods—procedure for checking the installations, part 1: static weighing system, 1st Ed., ISO, Charlottesville (1990) 1–22.Google Scholar
  3. [3]
    ISO 5168, Measurement of liquid flow in closed conduits—procedure for the evaluation of uncertainties, 2nd Ed., ISO, Charlottesville (2005) 1–65.Google Scholar
  4. [4]
    JCGM 100, Evaluation of measurement data—guide to the expression of uncertainty in measurement, 1st Ed., JCGM, Viana Do Castelo (2008) 1–134.Google Scholar
  5. [5]
    S. K. Jaiswal, S. Yadav, A. K. Bandyopadhyay and R. Agarwal, Global water flow measurement and calibration facilities: review of methods and instrumentations, MAPAN-J. Metrol. Soc. India, 27(2) (2012) 63–76.Google Scholar
  6. [6]
    NIST Special Publication 250, NIST calibration services for water flowmeters, water flow calibration facility, NIST, Gaithersburg (2006).Google Scholar
  7. [7]
    C. David and P. Claudel, Novel water flow facility in france range extension to low flow rates (10 000 ml/h down to 1 ml/h), MAPAN-J. Metrol. Soc. India, 26(3) (2011) 203–209.Google Scholar
  8. [8]
    W. Poeschel and R. Engel, The concept of a new primary standard for liquid flow measurement at PTB, Braunschweig, Proceedings of the 9th international conference on flow measurement (FLOMEKO 98), Lund (1998) 7–12.Google Scholar
  9. [9]
    R. Engel and U. Klages, A novel approach to improve diverter performance in liquid flow calibration facilities, Proceedings of the 10th international conference on flow measurement (FLOMEKO 2000), Salvador (2000).Google Scholar
  10. [10]
    W. Poeschel, R. Engel, D. Dopheide, H. J. Baade, H. J. Kecke, R. Praetor, N. Weist and E. Kurras, A unique fluid diverter design for water flow calibration facilities, Proceedings of the 10th international conference on flow measurement (FLOMEKO 2000), Salvador (2000).Google Scholar
  11. [11]
    R. Engel, H.J. Baade, and A. Rubel, Performance improvement of liquid flow calibrators by applying special measurement and control strategies, Proceedings of the 11th international conference on flow measurement (FLOMEKO 2003), Groningen (2003).Google Scholar
  12. [12]
    R. Engel and H.J. Baade, New-design dual-balance gravimetric reference systems with PTB’s new hydrodynamic test field, Proceedings of the 11th international conference on flow measurement (FLOMEKO 2003), Groningen (2003).Google Scholar
  13. [13]
    R. Engel, PTB’s hydrodynamic test field—investigations to verify the measurement uncertainty, Proceedings of the 12th international conference on flow measurement (FLOMEKO 2004), Guilin (2004).Google Scholar
  14. [14]
    R. Engel, Modeling the uncertainty in liquid flowmeters calibration and application—requirements and their technical realization for PTB’s national water flow standard, Proceeding SENSOR conference 2007, Nuremburg (2007).Google Scholar
  15. [15]
    R. Engel and H.J. Baade, Model-based flow diverter analysis for an improved uncertainty determination in liquid flow calibration facilities, Meas. Sci. Technol., 21 (2010) 1–11.CrossRefGoogle Scholar
  16. [16]
    T.T. Yeh, N.P. Yende and P.I. Espina, Theoretical self-error cancelling diverters for liquid flow calibration facilities, Proceedings of the 11th international conference on flow measurement (FLOMEKO 2003), Groningen (2003).Google Scholar
  17. [17]
    V. Gowda, T.T. Yeh and P.I. Espina, The new NIST water flow calibration facility, Proceedings of the 11th international conference on flow measurement (FLOMEKO 2003), Groningen (2003).Google Scholar
  18. [18]
    N.P. Yende, T.T. Yeh and P.I. Espina, Performance of an error free liquid flow diverter design, Proceedings of the 11th international conference on flow measurement (FLOMEKO 2003), Groningen (2003).Google Scholar
  19. [19]
    I. Marfenko, T.T. Yeh and J. Wright, Diverter uncertainty less than 0.01 % for water flow calibrations, Proceedings of the 6th international symposium for fluid flow, Querétario (2006).Google Scholar
  20. [20]
    T. Shimada, S. Oda, Y. Terao and M. Takamoto, Development of a new diverter system for liquid flow calibration facilities, Flow Meas. Instrum., 14 (2003) 89–96.CrossRefGoogle Scholar
  21. [21]
    R. Doihara, T. Shimada, Y. Terao and M. Takamoto, Development of weighing tank system employing rotating double wing diverter, Flow Meas. Instrum., 17 (2006) 141–152.CrossRefGoogle Scholar
  22. [22]
    V. Kumar and M. Anklin, Numerical simulations of coriolis flow meters for low Reynolds number flows, MAPAN-J. Metrol. Soc. India, 26 (2011) 225–235.Google Scholar

Copyright information

© Metrology Society of India 2014

Authors and Affiliations

  • Shiv Kumar Jaiswal
    • 1
  • Sanjay Yadav
    • 1
  • Ravinder Agarwal
    • 2
  1. 1.CSIR-National Physical Laboratory (NPLI)New DelhiIndia
  2. 2.Thapar UniversityPatialaIndia

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