Combustor applied in thermophotovoltaic system

Patent metadata

Field	Value
Publication number	US-9322548-B2
Application number	US-201213466364-A
Country	US
Kind code	B2
Filing date	May 8, 2012
Priority date	Dec 16, 2011
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

A combustor applied in thermophotovoltaic system comprises a combustion device and a reversed tube covering the combustion device. The combustion device includes a combustion body made of a transparent and temperature resistant material and a burning unit disposed in the combustion body. When a burning-supported medium is adopted during burning via the burning unit, the radiant intensity is increased. The reversed tube then further redirects the hot product gas for reheating an outer wall of the combustion body in combustion. Therefore, uniform illumination is accordingly resulted for enhancing the radiant intensity. Accordingly, a photovoltaic cell plate connected to the combustor preferably transforms light into electricity. The present invention fully utilizes a micro system as well as miniature energy to offer advanced electricity.

First claim

We claim:

1. A combustor applied in thermophotovoltaic system comprising:
a combustion device including a combustion body and a burning unit disposed in said combustion body; wherein, said combustion body is transparent to be pervious to light and heat-resistant, and wherein, said combustion body is made of a metal-oxide-deposited quartz material; said combustion body including an inner wall, an outer wall, an opening surrounded by an end of said inner wall, and an accommodating room being cooperatively formed within said combustion body, said accommodating room being surrounded by said inner wall and in communication with said opening; said burning unit extending into said accommodating room, said burning unit contoured to form a shell structure having a plurality of openings passing therethrough throughout a surface area of said shell for supplying a controlled fuel/air mixture into said accommodating room;
a burning-supported medium coating said inner wall of said combustion body, said coating in direct contact with the accommodating room, said burning-supported medium adopting a metal-oxide-deposited coating;
a gas inlet for entrance of a combustion-supporting gas therethrough, a fuel inlet for entrance of a fuel therethrough, and a first outlet for discharge of a hot product gas derived from combustion of the fuel and gas within said combustion body; a fuel/air mixture being released via said burning unit whereby the combustion of said fuel and gas creates a combustion flame within said combustion body to produce a luminous light, wherein said flame heats said burning-supported medium, said burning-supported medium absorbing thermal energy from said flame to produce energy and create radiant lights, both said luminous light of said flame and said radiant lights of said burning-supported medium being emitted outward from said light-pervious combustion body; and
a reversed tube disposed to cover said combustion body; said reversed tube having a closed end extending over said opening of said combustion body and an intermediate portion extending from said closed end to terminate at an open end, said intermediate portion extending about said combustion body, said reversed tube remaining spaced from said combustion body to define a room between said closed end and said opening of said combustion body; said room remaining in communication with said opening; and a gap being formed between said open end of said reversed tube and said combustion body for hot product gas circulated within said combustor to be discharged therethrough.

2. The combustor as claimed in claim 1 , wherein, said outer wall of said combustion body is plated with a filter.

3. The combustor as claimed in claim 1 , wherein, said burning unit is made of metal.

4. The combustor as claimed in claim 1 , wherein, a plurality of second outlets are defined on said reversed tube.

5. The combustor as claimed in claim 1 , wherein, said reversed tube is made of quartz.

Assignees

• Li Yueh-Heng
• Chen Guan-Bang
• Chao Yei-Chin
• Cheng Tsarng-Sheng
• Li Hong-Yuan
• Univ Nat Cheng Kung

Inventors

• Li Yueh-Heng
• Chen Guan-Bang
• Chao Yei-Chin
• Cheng Tsarng-Sheng
• Li Hong-Yuan

Classifications

• F23C3/00 Primary

  Combustion apparatus characterised by the shape of the combustion chamber · CPC title

• H02S10/30

  Thermophotovoltaic systems (photovoltaic cells specially adapted for conversion or sensing of infrared [IR] radiation H10F10/00; thermoelectric devices H10N10/00) · CPC title

• F23D5/04

  Pot-type evaporators, i.e. using a partially-enclosed combustion space · CPC title

• F23D5/123

  Inserts promoting evaporation · CPC title

• F23M2900/05004

  Special materials for walls or lining · CPC title