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

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Title: Validation of Primary Water Dew-Point Generator for Methane at Pressures up to 6 MPa.
Authors: Bosma, R.1 rbosma@vsl.nl, Mutter, D.2, Peruzzi, A.1
Source: International Journal of Thermophysics. Jul2014, Vol. 35 Issue 6/7, p1290-1298. 9p.
Subjects: Carrier gas, Dew point, Atmospheric pressure, Methane, Hygrometers, Meteorological instruments
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. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Thermophysics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 98507958
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  Data: Validation of Primary Water Dew-Point Generator for Methane at Pressures up to 6 MPa.
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  Data: <searchLink fieldCode="AR" term="%22Bosma%2C+R%2E%22">Bosma, R.</searchLink><relatesTo>1</relatesTo><i> rbosma@vsl.nl</i><br /><searchLink fieldCode="AR" term="%22Mutter%2C+D%2E%22">Mutter, D.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Peruzzi%2C+A%2E%22">Peruzzi, A.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Thermophysics%22">International Journal of Thermophysics</searchLink>. Jul2014, Vol. 35 Issue 6/7, p1290-1298. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Carrier+gas%22">Carrier gas</searchLink><br /><searchLink fieldCode="DE" term="%22Dew+point%22">Dew point</searchLink><br /><searchLink fieldCode="DE" term="%22Atmospheric+pressure%22">Atmospheric pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Methane%22">Methane</searchLink><br /><searchLink fieldCode="DE" term="%22Hygrometers%22">Hygrometers</searchLink><br /><searchLink fieldCode="DE" term="%22Meteorological+instruments%22">Meteorological instruments</searchLink>
– Name: Abstract
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  Data: 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. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Thermophysics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1007/s10765-014-1736-8
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      – Code: eng
        Text: English
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        PageCount: 9
        StartPage: 1290
    Subjects:
      – SubjectFull: Carrier gas
        Type: general
      – SubjectFull: Dew point
        Type: general
      – SubjectFull: Atmospheric pressure
        Type: general
      – SubjectFull: Methane
        Type: general
      – SubjectFull: Hygrometers
        Type: general
      – SubjectFull: Meteorological instruments
        Type: general
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      – TitleFull: Validation of Primary Water Dew-Point Generator for Methane at Pressures up to 6 MPa.
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            – D: 01
              M: 07
              Text: Jul2014
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              Y: 2014
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