System and method for controlling electric fields in electro-hydrodynamic applications
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01N-021/85
H02N-003/00
F03D-007/00
출원번호
US-0938003
(2013-07-09)
등록번호
US-8796655
(2014-08-05)
발명자
/ 주소
Carmein, David
White, Dawn
Stevenson, Randy C
출원인 / 주소
Accio Energy, Inc.
대리인 / 주소
Schox, Jeffrey
인용정보
피인용 횟수 :
0인용 특허 :
29
초록▼
An electro-hydrodynamic system that extracts energy from a gas stream, which includes an injector that injects a first species of particles having the same polarity into the gas stream, wherein particle movement with the gas stream is opposed by a first electric field; an electric field generator th
An electro-hydrodynamic system that extracts energy from a gas stream, which includes an injector that injects a first species of particles having the same polarity into the gas stream, wherein particle movement with the gas stream is opposed by a first electric field; an electric field generator that generates a second electric field opposing the first, such that the net electric field at a predetermined distance downstream from the injector is approximately zero; an upstream collector that collects a second species of particles having a polarity opposite the first particle species; a downstream collector that collects the charged particle; and a load coupled between the downstream collector and the upstream collector, wherein the load converts the kinetic energy of the gas stream into electric power.
대표청구항▼
1. A system for extracting energy from wind, comprising: an upstream collector biased at an electric potential, the upstream collector inducing a first electric field;an electric field generator that generates a second electric field opposing the first electric field;an injector that introduces a pa
1. A system for extracting energy from wind, comprising: an upstream collector biased at an electric potential, the upstream collector inducing a first electric field;an electric field generator that generates a second electric field opposing the first electric field;an injector that introduces a particle into the first electric field, wind drag on the particle at least partially opposed by a force of the first electric field on the particle and assisted by a force of the second electric field on the particle;a sensor that monitors an operation parameter;a controller that changes a parameter of the system in response to a change in the operation parameter to increase energy extraction efficiency; anda field leveler that substantially homogenizes the second electric field along an area defined by the electric field generator. 2. The system of claim 1, further comprising a load electrically connected between the upstream collector and a downstream collector, wherein the second electric field opposes the first electric field between the injector and the downstream collector. 3. The system of claim 2, wherein a magnitude of a net electric field at a point proximal the injector between the injector and the downstream collector is substantially zero. 4. The system of claim 3, wherein the second electric field reverses the first electric field between the injector and the point. 5. The system of claim 4, wherein the point is between 5 mm-10 mm from the injector exit. 6. The system of claim 2, further comprising the downstream collector. 7. The system of claim 2, wherein the injector is arranged between a portion of the electric field generator and the downstream collector. 8. The system of claim 1, wherein the electric field generator comprises an electrode. 9. The system of claim 8, wherein the electric field generator at least partially encircles the injector. 10. The system of claim 9, wherein the electric field generator is substantially concentric with the injector. 11. The system of claim 1, wherein the field leveler comprises a second electrode. 12. The system of claim 11, wherein the field leveler is held at a voltage substantially similar to a voltage at which the electric field generator is held. 13. The system of claim 1, wherein the electric field generator comprises a circumscribing structure. 14. The system of claim 13, wherein the field leveler is concentric with and encircled by the electric field generator. 15. The system of claim 1, wherein the operation parameter comprises an internal system parameter. 16. The system of claim 15, wherein the internal parameter comprises a strength of the first electric field. 17. The system of claim 1, wherein the particle carries an electric charge. 18. The system of claim 17, wherein the electric charge is substantially near a Rayleigh charge limit for the particle. 19. A method for extracting energy from wind, comprising: inducing a first electric field;inducing a second electric field that opposes the first electric field;homogenizing the second electric field with a field leveler; andintroducing a charged particle into the wind, wind drag on the charged particle at least partially opposed by a first force of the first electric field on the charged particle and at least partially assisted by a second force of the second electric field on the charged particles. 20. The method of claim 19, further comprising monitoring an operation parameter, and changing a system parameter in response to a change in the operation parameter to increase energy extraction efficiency. 21. The method of claim 19, further comprising extracting power from charged particle movement against the first electric field. 22. The method of claim 21, wherein introducing the charged particle into the wind comprises introducing the charged particle into the wind with a nozzle. 23. The method of claim 22, wherein extracting power from charged particle movement against the first electric field comprises collecting the charged particle at a downstream collector and extracting power with a load electrically connected between the downstream collector and the nozzle. 24. The method of claim 19, wherein inducing a second electric field comprises inducing a second electric field having a field magnitude smaller than a field magnitude of the first electric field. 25. The method of claim 19, wherein introducing the charged particle into the wind comprises introducing a plurality of charged particles of a first polarity into the wind. 26. The method of claim 19, wherein inducing a second electric field comprises holding an electric field generator at a first voltage, wherein homogenizing the second electric field comprises holding the field leveler at a second voltage substantially similar to the first voltage. 27. The method of claim 26, wherein introducing a charged particle into the wind comprises charging the particle by applying a charging voltage to the particle, wherein holding the field leveler at a second voltage comprises holding the field leveler at a second voltage lower than the charging voltage.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (29)
Kaufman, Stanley L.; Dorman, Frank D., Aerosol charge adjusting apparatus employing a corona discharge.
Singer Hermann (Luettendamm 9 2000 Stapelfeld/Hamburg DEX) Rossner Michael (Haldesdorfer Strasse 158 2000 Hamburg 71 DEX), Apparatus and method for measuring particles in polydispersed systems and particle concentrations of monodispersed aeros.
Gregory Stephen E. (1605 N. State St. Orem UT 84057) Schurig Alma K. (231 E. 700 N. Orem UT 84057), Apparatus and method of generating electricity from wind energy.
Melcher James R. (Lexington MA) Alexander Jeffrey C. (Belmont MA) Zahedi Karim (Brookline MA), Electrofluidized bed agglomerator and method of agglomerating.
Larigaldie Serge (Chatenay Malabry FRX), Methods and apparatus for transferring electric charges of different signs into a space zone, and application to static.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.