Modeling of hydrocarbon fueling
Creators
- 1. Oak Ridge National Lab., TN (USA)
- 2. Kernforschungsanlage Juelich GmbH (Germany, F.R.). Inst. fuer Plasmaphysik
Description
We have compared a database of rate coefficients for CH4 with experiments on PISCES-A to understand the role of carbon-based impurities in determining the fueling profile of carbon-dominated machines. A three-dimensional Monte Carlo model that embodies the Ehrhardt-Langer CH4 breakup scheme has been developed. The model has been compared with spectroscopic observations of the spatial variation of the hydrocarbon product decay rates, and reasonable agreement has been found. The comparison is sensitive to the non-Maxwellian electron distribution and to observed spatial inhomogeneities in the electron density and temperature profiles. Applications of the model to parameters characteristic of the tokamak scrape-off layer are presented
Availability note (English)
MF available from INIS under the Report Number; NTIS, PC A03/MF A01 as DE90014790; OSTI; INIS; US Govt. Printing Office Dep.
Files
Restricted
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Additional details
Publishing Information
- Imprint Pagination
- 18 p.
- Report number
- ORNL/TM--11542
Conference
- Title
- 7. American Physical Society topical conference on atomic processes in plasmas.
- Dates
- 2 Oct 1989.
- Place
- Gaithersburg, MD (USA).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21088709
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BREAKUP REACTIONS; ELECTRON DENSITY; HYDROCARBONS; IMPURITIES; MATHEMATICAL MODELS; MONTE CARLO METHOD; PLASMA SCRAPE-OFF LAYER; TEMPERATURE DISTRIBUTION; THERMONUCLEAR REACTOR FUELING; TOKAMAK DEVICES
- Descriptors DEC
- BOUNDARY LAYERS; CLOSED PLASMA DEVICES; LAYERS; NUCLEAR REACTIONS; ORGANIC COMPOUNDS; THERMONUCLEAR DEVICES
Optional Information
- Contract/Grant/Project number
- Contract AC05-84OR21400
- Secondary number(s)
- CONF-901099--1.