Monitoring the Wobbe index of natural gas using fiber-enhanced raman spectroscopy
| Autor: | Vincenz, Sandfort, Barbara M, Trabold, Amir, Abdolvand, Carsten, Bolwien, Philip St. J, Russell, Jürgen, Wöllenstein, Stefan, Palzer |
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| Přispěvatelé: | Publica, School of Electrical and Electronic Engineering |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Sensors, Vol 17, Iss 12, p 2714 (2017) Sensors (Basel, Switzerland) |
| Popis: | The fast and reliable analysis of the natural gas composition requires the simultaneous quantification of numerous gaseous components. To this end, fiber-enhanced Raman spectroscopy is a powerful tool to detect most components in a single measurement using a single laser source. However, practical issues such as detection limit, gas exchange time and background Raman signals from the fiber material still pose obstacles to utilizing the scheme in real-world settings. This paper compares the performance of two types of hollow-core photonic crystal fiber (PCF), namely photonic bandgap PCF and kagomé-style PCF, and assesses their potential for online determination of the Wobbe index. In contrast to bandgap PCF, kagomé-PCF allows for reliable detection of Raman-scattered photons even below 1200 cm−1, which in turn enables fast and comprehensive assessment of the natural gas quality of arbitrary mixtures. Published version |
| Databáze: | OpenAIRE |
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