| Zugriffsnummer | 33191 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | An investigation of the comparative performance of diverse humidity sensing techniques in natural gas |
| Autor(in); Institution |
Gallegos, J. G.; Instituto Nacional de Técnica Aerospacial, Madrid, SPAIN
Benyon, R.; Instituto Nacional de Técnica Aerospacial, Madrid, SPAIN
Avila, S.; ENAGÁS, S.A., Zaragoza, SPAIN
Benito, A.; ENAGÁS, S.A., Zaragoza, SPAIN
Gavioso, R. M.; Istituto Nazionale di Ricerca Metrologica, Torino, ITALY
Mitter, H.; E + E Elektronik, Engerwitzdorf, AUSTRIA
Bell, S.; National Physical Laboratory, Teddington, UK
Stevens, M.; United Kingdom Accreditation Service, Feltham, UK
Böse, Norbert; 3.2, Gasanalytik und Zustandsverhalten, PTB-Braunschweig
Ebert, Volker; 3.2, Gasanalytik und Zustandsverhalten, PTB-Braunschweig
Heinonen, M.; Mittatekniikan Keskus, Espoo, FINLAND
Sairanen, H.; Mittatekniikan Keskus, Espoo, FINLAND
Peruzzi, A.; Van Swinden Laboratory, Delft, THE NETHERLANDS
Bosma, R.; Van Swinden Laboratory, Delft, THE NETHERLANDS
Valková, M.; Slovenský Metrologický Ustav, Bratislava, SLOVAKIA
|
| Quelle/Jahr | Journal of Natural Gas Science and Engineering: 23 (2015), 407 - 416 |
| ISSN | 1875-5100 |
| DOI | |
| Verlag | Amsterdam [u.a.]: Elsevier |
| Freie Schlagworte | comparison ; natural gas ; hygrometer ; dew point ; humidity ; pressure |
| Zusammenfassung | Moisture content is a key factor regardless of the activity carried out inside the natural gas industry (production, processing, transmission, etc.). Not only does the efficiency of the final product, known as heating value, decrease when the water content is high, but it can also trigger potentially dangerous conditions due to the formation of hydrates, that can block pipelines and damage pumping devices and produce other negative effects. For these reasons, accurate measurement and control of humidity is absolutely essential. However, current practice for such moisture measurements is for the devices to be calibrated at atmospheric pressure and in nitrogen or air as the matrix gas, conditions that vary significantly from those present in the actual industrial process. For that, eleven hygrometers based on different measurement principles (chilled-mirror, electrolytic sensor, a spectroscopic analyzer, polymeric and metal oxide humidity sensors) have been compared at facilities of the main carrier of natural gas in Spain, using natural gas at absolute pressures between 0.1 MPa and 6 MPa, and for a range of water content from 13 ppmv to 250 ppmv. Their relative performance is described in terms of the response times, long term stability, hysteresis and behaviour under large pressure changes. Most instruments, exceptions are detailed in the article, show good behaviour regarding response time, hysteresis and under sudden pressure changes. In contrast, drift can be identified in most of the aluminium oxide probes tested. |
Zitierung
Gallegos, J. G., Benyon, R., Avila, S., Benito, A., Gavioso, R. M., Mitter, H., Bell, S., Stevens, M., Böse, N., Ebert, V., Heinonen, M., Sairanen, H., Peruzzi, A., Bosma, R., & Valková, M. (2015). An investigation of the comparative performance of diverse humidity sensing techniques in natural gas. Journal of Natural Gas Science and Engineering, 23, 407–416. https://doi.org/10.1016/j.jngse.2015.02.021