| Zugriffsnummer | 44916 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Investigation of the correlation between the electrical power and flame front of a discharge caused by a slow contact opening in a H2/air mixture |
| Autor(in); Institution |
Uber, Carsten; 3.6, Explosionsgeschützte Sensorik und Messtechnik, PTB-Braunschweig
Barbu, Bogdan; Technische Universität Ilmenau, Ilmenau, GERMANY
Hilbert, Michael; 3.6, Explosionsgeschützte Sensorik und Messtechnik, PTB-Braunschweig
Berger, Frank; Technische Universität Ilmenau, Ilmenau, GERMANY
Lienesch, Frank; 3.6, Explosionsgeschützte Sensorik und Messtechnik, PTB-Braunschweig
|
| Quelle/Jahr | Proceedings of the 13th International Symposium on Hazards, Prevention and Mitigation of Industrial Explosions (ISHPMIE 2020):(2020), 829 - 835 |
| Herausgeber(in) |
Physikalisch-Technische Bundesanstalt
|
| DOI | |
| Konferenzangaben | 13th International Symposium on Hazards, Prevention and Mitigation of Industrial Explosions, Virtual Conference, 27-31, July, 2020 |
| Freie Schlagworte | electrical discharge ; optical emission spectroscopy ; cadmium ; temperature determination |
| Zusammenfassung | Electrical contact break discharges are a potential ignition source for combustible gas mixtures. Therefore, electrical equipment in which electrical contact discharges may occur must meet safety requirements when used in explosive atmospheres. The electrical discharges generated by slow contact openings have been characterized in previous articles of the authors. The relevant discharges near the minimum ignition energy (17 μJ for hydrogen-air mixture) typically occur at voltages lower than 30 V and currents higher than 30 mA. These discharges are dominated by metal vapor, which can be deduced from the optical radiation. Processes that operate on different time scales (nano-, micro- and milliseconds) as well as on different spatial scales (micro- and millimeter) pose a considerable challenge for optical investigations. In this article, the relevant electrical and spectroscopic parameters of the discharge and the mechanical parameters of the contact opening are compared. The data obtained serve as the basis for modeling and as support for standardization. |
| Kostenfreier Zugang | Freier Zugang |
| Rechteinformation | CC BY-ND 4.0 ; Creative Commons Attribution NoDerivatives 4.0 License |
| Themenbereich der Metrologie | Physikalische Sicherheitstechnik, Explosionsschutz |
Zitierung
Uber, C., Barbu, B., Hilbert, M., Berger, F., & Lienesch, F. (2020). Investigation of the correlation between the electrical power and flame front of a discharge caused by a slow contact opening in a H₂/air mixture. 13th International Symposium on Hazards, Prevention and Mitigation of Industrial Explosions, Virtual Conference, 27-31, July, 2020. https://doi.org/10.7795/810.20200724