[특허]Cylindrical electric power generator using low bandgap thermophotovolatic cells and a regenerative hydrocarbon gas burne

Cylindrical electric power generator using low bandgap thermophotovolatic cells and a regenerative hydrocarbon gas burne 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01L-031/058 H02N-006/00
출원번호	US-0260910 (1994-06-15)
발명자 / 주소	Fraas Lewis M. (Issaquah WA)
출원인 / 주소	JX Crystals, Inc. (Issaquah WA 02)
인용정보	피인용 횟수 : 91 인용 특허 : 0

초록 ▼

In the present invention, we describe a simple ceramic gas burner for use in a cylindrical thermophotovoltaic generator in which the burner and IR emitter section consist of three concentric ceramic tubes, with the largest tube being the outer exhaust tube. Fuel and a small amount of primary air are injected from the bottom of the smallest tube and exit at the top of the infrared emitter section where they combine with secondary air coming down through a second ceramic tube with an intermediate diameter open at the bottom of the emitter section. Ignition is initiated at the bottom of this air injector tube. After ignition, combustion then moves up to the top of the fuel injector tube. The exhaust gases then pass down from the top of the emitter section inside the mid diameter tube to the bottom end of the emitter section and then back up between the mid diameter tube and the outer tube to the top of the emitter section. This double pass allows for both efficient heat transfer to the emitter and for a uniform heat transfer along the length of the emitter. This open ended tube design allows for a high conductance low pressure burner design using off-the-shelf ceramic tubing.

대표청구항 ▼

A thermophotovoltaic electric generator in which a hydrocarbon gas fuel and air mixture is burned in a central vertical cylindrical burner/emitter, resulting in the emission of infrared radiation which is received by low bandgap photovoltaic cells and converted to electric power, wherein said burner/emitter is comprised of three concentric ceramic tubes, an outer emitter tube, an inner fuel injector tube, and a mid diameter air injector tube, where both the air and fuel injector tubes pass through the emitter tube, said fuel injector tube being open at its top end and said air injector tube being open at its bottom end, wherein combustion in steady state occurs at the top of the fuel injector tube and the hot combustion gases then travel downward between the fuel and air injector tubes and then upward between the air and emitter tubes, wherein the three tube diameters and lengths are adjusted to achieve a uniform temperature along the length of the emitter tube.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Cylindrical electric power generator using low bandgap thermophotovolatic cells and a regenerative hydrocarbon gas burne 원문보기

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Cylindrical electric power generator using low bandgap thermophotovolatic cells and a regenerative hydrocarbon gas burne 원문보기

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