The Board of Trustees of the University of Alabama
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Meunier Carlin & Curfman LLC
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39
초록▼
A meso-scaled combustion system. In one aspect, the system has a housing with a housing wall, a top portion defining an exhaust port, and a bottom portion having a bottom surface. A combustion chamber is positioned therein the interior volume of the housing. The combustion chamber wall has a proxima
A meso-scaled combustion system. In one aspect, the system has a housing with a housing wall, a top portion defining an exhaust port, and a bottom portion having a bottom surface. A combustion chamber is positioned therein the interior volume of the housing. The combustion chamber wall has a proximal portion adjacent the top portion of the housing and a distal portion spaced from the bottom surface of the housing. In another aspect, there is a lid that is in sealed relation with the housing wall and the combustion chamber wall. An annulus is defined by the lid, the combustion chamber wall, and the housing wall.
대표청구항▼
1. A meso-scaled combustion system, comprising: a housing comprising a housing wall, a top portion defining a central exhaust port, and a bottom portion having a bottom surface, wherein the housing wall defines an interior volume, and at least one fuel injector port extends through a portion of the
1. A meso-scaled combustion system, comprising: a housing comprising a housing wall, a top portion defining a central exhaust port, and a bottom portion having a bottom surface, wherein the housing wall defines an interior volume, and at least one fuel injector port extends through a portion of the housing wall;a combustion chamber within the interior volume of the housing having a combustion chamber wall, wherein a proximal portion of the combustion chamber wall is adjacent the top portion of the housing and a distal portion of the combustion chamber wall is spaced from the bottom surface of the housing;a lid in sealed relation with the housing wall and the combustion chamber wall, wherein portions of the lid, the combustion chamber wall, and the housing wall define an annulus;porous inert media positioned near the bottom portion of the housing, extending into the combustion chamber and into a portion of the annulus; anda fuel injector assembly configured for injecting a fuel-air mixture through the fuel injector port,wherein said porous inert media comprises first, second, and third layers, the second layer positioned between the first and the third layers, and the second layer comprising higher density porous media than the first and third layers to prevent flashbacks and the third layer exposed to the atmosphere. 2. The meso-scaled combustion system of claim 1, wherein the first and third densities are substantially the same. 3. The meso-scaled combustion system of claim 1, wherein the fuel injector assembly comprises a flow blurring injector, the flow blurring injector comprising: an inner injector tube;an outer injector tube spaced radially around a portion of the inner injector tube; andan end cap spaced apart from the inner injector tube and radially around a portion of the outer injector tube and defining an outlet port, the outlet port being spaced axially above an outlet of the inner injector tube and an outlet of the outer injector tube, and the outlet port having a frustoconical shape, wherein the frustoconical shape of the outlet port has an inner, proximal diameter that is the same as an inner diameter of the inner injector tube and an inner, distal diameter spaced axially above the inner proximal diameter that is larger than the inner, proximal diameter of the frustoconical shape. 4. The meso-scaled combustion system of claim 3, further comprising a pressurized source of fuel. 5. The meso-scaled combustion system of claim 4, further comprising a pressurized source of air. 6. The meso-scaled combustion system of claim 4, wherein the inner injector tube is in fluid communication with the pressurized source of fuel. 7. The meso-scaled combustion system of claim 5, wherein the outer injector tube is in fluid communication with the pressurized source of air. 8. The meso-scaled combustion system of claim 3, wherein the fuel-air mixture is injected into the annulus via the outlet port. 9. The meso-scaled combustion system of claim 4, wherein the fuel is kerosene. 10. The meso-scaled combustion system of claim 1, wherein the fuel-air mixture is provided at an equivalence ratio of between about 0.5 and about 0.8. 11. The meso-scaled combustion system of claim 1, wherein fuel in the fuel-air mixture is provided at a flow rate from about 3 grams/hr to about 100 grams/hr. 12. The meso-scaled combustion system of claim 11, wherein the fuel in the fuel-air mixture is provided at a flow rate of about 40 grams/hr. 13. The meso-scaled combustion system of claim 1, wherein the system has a heat release rate from about 200 watts to about 5 kilowatts. 14. The meso-scaled combustion system of claim 1, wherein the system produces an adiabatic flame temperature of about 1800 K. 15. The meso-scaled combustion system of claim 1, wherein the combustion chamber has a volume of from about 1.0 cm3 to about 4.0 cm3. 16. The meso-scaled combustion system of claim 15, wherein the combustion chamber has a volume of about 2.0 cm3. 17. The meso-scaled combustion system of claim 1, wherein the porous inert media comprises silicon carbide. 18. The meso-scaled combustion system of claim 1, wherein at least a portion of the combustion chamber wall comprises a thermally conductive material. 19. The meso-scaled combustion system of claim 18, wherein the thermally conductive material comprises 304 stainless steel. 20. The meso-scaled combustion system of claim 1, wherein at least a portion of the housing comprises alumino-silicate ceramic. 21. The meso-scaled combustion system of claim 1, wherein at least a portion of the lid comprises alumino-silicate ceramic. 22. The meso-scaled combustion system of claim 1, wherein the housing wall extends axially between the top portion and the bottom portion, and the lid defines a central opening in fluid communication with the exhaust port, wherein the exhaust port extends axially from the combustion chamber.
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이 특허에 인용된 특허 (39)
Bell Ronald D. (Austin TX) Gardiner William C. (Austin TX) Howell John R. (Austin TX) Koeroghlian Mark M. (Austin TX) Matthews Ronald D. (Austin TX) Nichols Steven P. (Austin TX), Apparatus and method for combustion within porous matrix elements.
Shukla Kailash C. ; Doyle Edward F. ; Metcalfe Christopher I., Burner and burner/emitter/recuperator assembly for direct energy conversion power sources.
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