Skip to main content

Validation of Primary Water Dew-Point Generator for Methane at Pressures up to 6 MPa

Abstract

In this paper, the validation of the water dew-point generator with methane as a carrier gas in the temperature range from \(-41\,^{\circ }\hbox {C}\) to \(+15\,^{\circ }\hbox {C}\) and at pressures up to 6 MPa is reported. During the validation, the generator was used with both nitrogen and methane to investigate the effect of methane on the generator and the chilled mirror dew-point meters. The effect of changing the flow rate and the dew-point temperature of the gas entering the generator, on the gas exiting the generator was investigated. As expected, methane at high pressures created hydrates in combination with water and low temperatures, thus limiting the temperature range of the generator to \(+8\,^{\circ }\hbox {C}\) to \(+15\,^{\circ }\hbox {C}\) at its maximum operating pressure of 6 MPa. A lower operating pressure extended the temperature range; for example, at 3 MPa, the temperature range was already extended down to \(-15\,^{\circ }\hbox {C}\), and at 1 MPa, the range was extended down to \(-41\,^{\circ }\hbox {C}\). The validation showed that, in its operating range, the generator can achieve with methane the same standard uncertainty of \(0.02\,^{\circ }\hbox {C}\) frost/dew point already demonstrated for nitrogen and air carrier gases.

This is a preview of subscription content, access via your institution.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

References

  1. M.J. de Groot, Papers and Abstracts from the Third International Symposium on Humidity and Moisture, vol. 1 (NPL, London, 1998)

    Google Scholar 

  2. J. Nielsen, M.J. de Groot, Metrologia 41, 167 (2004)

    Article  ADS  Google Scholar 

  3. M. Stevens, S.A. Bell, Meas. Sci. Technol. 3, 943 (1992)

    Article  ADS  Google Scholar 

  4. C.W. Meyer, W.W. Miller, D.C. Ripple, G.E. Scace, Int. J. Thermophys. 29, 1606 (2008)

    Article  ADS  Google Scholar 

  5. D. Zvizdic, M. Heinonen, D. Sestan, Int. J. Thermophys. 33, 1536 (2012)

    Article  ADS  Google Scholar 

  6. R. Benyon, T. Vicente, Int. J. Thermophys. 33, 1550 (2012)

    Article  ADS  Google Scholar 

  7. R. Bosma, A. Peruzzi, Int. J. Thermophys. 33, 1511 (2012)

    Article  ADS  Google Scholar 

  8. R. Bosma, D. Mutter, A. Peruzzi, Metrologia 49, 597 (2012)

    Article  ADS  Google Scholar 

  9. D. Sonntag, Z. Meteorol. 40, 340 (1990)

    Google Scholar 

  10. R. Hardy, Papers and Abstracts from the Third International Symposium on Humidity and Moisture, vol. 1 (NPL, London, 1998)

    Google Scholar 

  11. H. Sagi, http://atcinc.net/wp-content/uploads/2013/09/Advanced-Leak-Testing-Methods.pdf. Accessed 22 March (2012)

  12. T. Maekawa, S. Itoh, S. Sakata, S.-I. Igara, N. Imai, Geochem. J. 29, 325 (1995)

    Article  Google Scholar 

Download references

Acknowledgments

This work was funded by the Ministry of Economic Affairs, the Netherlands and by the European Commission through the EMRP Program, Project ENG01, “Characterization of Energy Gases.”

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to R. Bosma.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Bosma, R., Mutter, D. & Peruzzi, A. Validation of Primary Water Dew-Point Generator for Methane at Pressures up to 6 MPa. Int J Thermophys 35, 1290–1298 (2014). https://doi.org/10.1007/s10765-014-1736-8

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10765-014-1736-8

Keywords

  • Dew-point generator
  • High pressure
  • Hydrates
  • Methane