Electrical generator or motor structure – Dynamoelectric – Conducting fluid
Patent
1989-04-14
1990-09-25
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Conducting fluid
H02K 4408
Patent
active
049595660
ABSTRACT:
A lithium-sulfur hexafluoride magnetohydrodynamic power system may be operated with different arrangements of the system components. The internal combustion process between lithium and sulfur-hexafluoride may be achieved in the MHD generator or externally, and the lithium transporting fluid may be a gas or a vaporizable liquid which vaporizes from the heat released in combustion. The lithium, sulfur-hexafluoride and transporting fluids may be mixed at the generator inlet where the heat released in combustion is used by the expanding gas in the generator to transport the lithium through the channel for the production of the electrical power. This system configuration produces the most compact and also the most complex design. In another system configuration, the lithium and sulfur-hexafluoride can be reacted before or near the generator inlet and the exiting fluid from the generator may be mixed with the transporting gas or vaporizable fluid in a mixer
ozzle unit where the thermal energy of combustion is used to expand the gas and therefore provide a pressure gradient for the lithium transport through the system. The MHD generator may also operate only with lithium or without combustion in the channel, whereby the exiting lithium from the generator is mixed with the sulfur-hexafluoride gas and with the transporting fluid in a mixer/combustor
ozzle unit. The later arrangements of system components allow for efficient operations of induction magnets and can decrease the complexities of the system design. The sulfur-hexafluoride gas injector should be designed with many nozzles to produce small bubbles of injected gas for the purpose of achieving an efficient combustion. These nozzles should be opened and closed by needles which are controlled by the suitable operating parameters of the system.
REFERENCES:
patent: 4645959 (1987-02-01), Dobran
Dobran Flavio
Jones Judson H.
Stephan Steven L.
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