MHD (magnetohydrodynamics) channel development: Quarterly report for January 1987-March 1987
During the report period several slag doping tests were performed. Four of these tests are described in this report. The results were generally encouraging. Four dopants were investigated: Fe/sub 2/O/sub 3/, Fe/sub 3/O/sub 4/, MnO, and CrO/sub 2/. All but the CrO/sub 2/ proved effective within some range of dopant flow rate. At flow rates above or below this range none of the dopants were desirable. The proper ranges for each of the dopants was coarsely mapped in these experiments. When the dopants were injected directly on the anode wall a power increase was observed. This indicates a possible reduction in the voltage drop due to the presence of the dopant. No power gain or loss was observed when the dopant was injected on the cathode wall. However, inter-cathode voltages were observed to spread more uniformly along the wall. High voltages decreased and low voltages increased. This result should help to reduce wear on the cathodes and their neighboring wall elements by reducing the local electrical field. Current control circuits were tested on both MK VI and MK VII type generators and components for consolidation circuits ordered. Solutions to waste disposal problems created by the implementation of new environmental regulations are being investigated. The MHD generator data from the CDIF 87-SEED-1, 87-SEED-2, and 87-SEED-3 tests have been analyzed and the results are presented in this report. The results of the SIDA model presented in this quarterly report are obtained by assuming a constant boundary layer voltage drop. Variations in the boundary layer voltage drop as a result of diagonal loading changes, iron oxide addition, or seeding rates changes were not considered. Corrections for the effects of ..delta..V/sub b1/ will be made to the results of SIDA when the voltage drop measurements become available.
- Research Organization:
- Avco-Everett Research Lab., Everett, MA (USA)
- DOE Contract Number:
- AC22-84PC70507
- OSTI ID:
- 5851436
- Report Number(s):
- DOE/PC/70507-12; ON: DE88002412
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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MHD channel development. Quarterly report, January-March 1985
MHD channel development. Quarterly report, July 1985-September 1985
Related Subjects
MHD CHANNELS
DESIGN
PERFORMANCE TESTING
MHD GENERATOR AERL MARK VI
MHD GENERATOR AERL MARK VII
MHD GENERATOR CDIF
POWER CONDITIONING CIRCUITS
CHROMIUM OXIDES
CONTROL SYSTEMS
DATA ANALYSIS
DOPED MATERIALS
EXPERIMENTAL DATA
IONIC CONDUCTIVITY
IRON OXIDES
MAGNETOHYDRODYNAMICS
MANGANESE OXIDES
PROGRAM MANAGEMENT
PROGRESS REPORT
SLAGS
SLURRIES
TEST FACILITIES
TESTING
CHALCOGENIDES
CHROMIUM COMPOUNDS
COAL-FIRED MHD GENERATORS
DATA
DIRECT ENERGY CONVERTERS
DISPERSIONS
DOCUMENT TYPES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONIC CIRCUITS
FLUID MECHANICS
HYDRODYNAMICS
INFORMATION
IRON COMPOUNDS
MANAGEMENT
MANGANESE COMPOUNDS
MATERIALS
MECHANICS
MHD GENERATORS
MIXTURES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUSPENSIONS
TRANSITION ELEMENT COMPOUNDS
300101* - MHD Generators- Design & Development
300102 - MHD Generators- Performance & Testing