Implementation of Ultrasonic Sensing for High Resolution Measurement of Binary Gas Mixture Fractions
| Autor: | P. Bonneau, David A. Robinson, Nicolas Langevin, S. McMahon, O. Crespo-Lopez, Cyril Degeorge, Michael A. Strauss, Ahmed Hasib, A. Bitadze, B. DiGirolamo, G. Favre, Benjamin Pearson, Koichi Nagai, N. Bousson, Vaclav Vacek, M. Vitek, Richard Bates, Enrico Da Riva, Jan Godlewski, D. Lombard, Michele Battistin, C. Rossi, S. Berry, G. Bozza, Martin Doubek, Alexandre Rozanov, Gregory David Hallewell, Lukasz Zwalinski, Michel Mathieu, S. Katunin, G. Boyd, Cecile Deterre |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
leak detection
ultrasonic Nuclear engineering Analytical chemistry Binary number Complex Mixtures lcsh:Chemical technology Biochemistry Article Chemistry Techniques Analytical Analytical Chemistry Water cooling lcsh:TP1-1185 Leak detection Sensitivity (control systems) Fluorocarbon Electrical and Electronic Engineering Instrumentation Ultrasonography binary gas analysis Chemistry System of measurement Microchemistry Equipment Design Atomic and Molecular Physics and Optics Coolant Equipment Failure Analysis Ultrasonic sensor Gases |
| Zdroj: | Sensors (Basel, Switzerland) Sensors, Vol 14, Iss 6, Pp 11260-11276 (2014) Sensors; Volume 14; Issue 6; Pages: 11260-11276 |
| ISSN: | 1424-8220 |
| Popis: | We describe an ultrasonic instrument for continuous real-time analysis of the fractional mixture of a binary gas system. The instrument is particularly well suited to measurement of leaks of a high molecular weight gas into a system that is nominally composed of a single gas. Sensitivity < 5 × 10−5 is demonstrated to leaks of octaflouropropane (C3F8) coolant into nitrogen during a long duration (18 month) continuous study. The sensitivity of the described measurement system is shown to depend on the difference in molecular masses of the two gases in the mixture. The impact of temperature and pressure variances on the accuracy of the measurement is analysed. Practical considerations for the implementation and deployment of long term, in situ ultrasonic leak detection systems are also described. Although development of the described systems was motivated by the requirements of an evaporative fluorocarbon cooling system, the instrument is applicable to the detection of leaks of many other gases and to processes requiring continuous knowledge of particular binary gas mixture fractions. |
| Databáze: | OpenAIRE |
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