A dynamic study of the warm-up phase of a high-pressure mercury lamp
- Unite d'Etude des Milieux Ionises et Reactifs, IPEIM, 5019 rte de Kairouan Monastir (Tunisia)
- Laboratoire Plasma et Conversion d'Energie, 118 rte Narbonne, Bat3R2, 31062 Toulouse (France)
A time-dependent two-dimensional computational fluid model has been adopted to investigate the dynamic behavior of the high-pressure mercury lamp during the last phase of the warm-up period. The model solves the combined momentum, continuity, energy, and electric field equations for the plasma and the energy equation for the wall. Two models have been compared. The first takes convection into account and is called ''convection model.'' The second, which neglects this term, is termed ''convectionless model.'' Good agreement between the predictions and experimental data from literature has been obtained. It is found that the convection affects the lamp performance by increasing the mercury losses behind the electrodes and the mercury-evaporation time.
- OSTI ID:
- 21269072
- Journal Information:
- Physics of Plasmas, Vol. 15, Issue 9; Other Information: DOI: 10.1063/1.2975212; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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