Heliostat image drift behavior for different error sources

Martha Escobar-Toledo, Camilo A. Arancibia-Bulnes*, Cuitlahuac Iriarte-Cornejo, Julio Waissman, David Riveros-Rosas, Rafael E. Cabanillas, Claudio A. Estrada

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Hall physics is often neglected in high energy density plasma jets due to the relatively high electron density of such jets (ne∼10 19cm-3). However, the vacuum region surrounding the jet has much lower densities and is dominated by Hall electric field. This electric field redirects plasma flows towards or away from the axis, depending on the radial current direction. A resulting change in the jet density has been observed experimentally. Furthermore, if an axial field is applied on the jet, the Hall effect is enhanced and ignoring it leads to serious discrepancies between experimental results and numerical simulations. By combining high currents (∼1 MA) and magnetic field helicity (15° angle) in a pulsed power generator such as COBRA, plasma jets can be magnetized with a 10T axial field. The resulting field enhances the impact of the Hall effect by altering the density profile of current-free plasma jets and the stability of current-carrying plasma jets (e.g., Z-pinches).

Original languageEnglish
Article number023117
JournalJournal of Renewable and Sustainable Energy
Volume6
Issue number2
DOIs
StatePublished - Mar 2014

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