Leakage resistance and current inferred from CDIF operating data
Axial leakage current is difficult to measure directly. Spacial and temporal variations tend to cloud the interpretation of local measurements such as the current or voltage between any two neighboring electrodes. Also the measurement process itself tends to affect the result in an unpredictable manner. Therefore it is desireable to seek an indirect method that is based upon averages over a distance equivalent to one duct diameter or more, does not perturb the system, and is based upon data already collected. An indirect method is described here together with the results obtained when it is applied to nearly all CDIF runs. When correlated, the data suggest that leak current is primarily a function of Hall parameter and Faraday current while only weakly dependent upon axial field. Possible reasons for this discussed. 4 refs., 7 figs.
- Research Organization:
- Avco-Everett Research Lab., Everett, MA (USA); Montana State Univ., Bozeman, MT (USA)
- Sponsoring Organization:
- DOE/FE
- DOE Contract Number:
- AC22-84PC70507
- OSTI ID:
- 6541915
- Report Number(s):
- CONF-9006105-10; ON: DE91000015
- Resource Relation:
- Conference: 28. symposium on engineering aspects of magnetohydrodynamics, Chicago, IL (USA), 26-28 Jun 1990
- Country of Publication:
- United States
- Language:
- English
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