TW201327884A - 用於熱光電系統之燃燒器 - Google Patents
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- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
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- F23D17/002—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel gaseous or liquid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
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- F23D5/00—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel
- F23D5/02—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel the liquid forming a pool, e.g. bowl-type evaporators, dish-type evaporators
- F23D5/04—Pot-type evaporators, i.e. using a partially-enclosed combustion space
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- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
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- F23D5/00—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel
- F23D5/12—Details
- F23D5/123—Inserts promoting evaporation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
- F23M9/06—Baffles or deflectors for air or combustion products; Flame shields in fire-boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/03001—Miniaturized combustion devices using fluid fuels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
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- F23M2900/00—Special features of, or arrangements for combustion chambers
- F23M2900/13004—Energy recovery by thermo-photo-voltaic [TPV] elements arranged in the combustion plant
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/30—Thermophotovoltaic systems
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Abstract
本發明用於熱光電系統之燃燒器,其係包含有一之燃燒裝置,以及一罩設於該燃燒裝置上之迴流罩;其中,該燃燒裝置具有一透光且耐熱材質之燃燒本體,以及一設於該燃燒本體內之燃燒頭,配合該燃燒本體上設有燃燒輔助介質,以便燃燒頭所釋出之燃料經點火燃燒時,該燃燒輔助介質可於燃燒時提供較高輻射能光波,當配合該迴流罩將燃燒時火焰所產之熱能導引成渦流氣體同時返回該燃燒本體時,可針對該燃燒本體外管壁加熱,以提供完全之燃燒效果,以提升輻射能光波,並促進與該燃燒器所連結之光電板將光能轉成電能之效用,因此以微型尺寸及低能量即可創造出更高效之電力效果,充分利用資源。
Description
本發明是有關於一種燃燒器,特別是一種用於熱光電系統之燃燒器。
近年來各式電子產品市場的蓬勃發展造就了龐大的市場與商機,故與其相對之動力系統(如電池)亦投入大幅研究及發展;其中,為改善傳統電池儲存能量有限及體積龐大等缺失,近年來國內外學者多致力於研究如何將高能量密度的能源微小化,如運用熱光電系統(TPV thermophotovoltaic power system)之微型燃燒器,以期使必須長時間運作之電子產品或高功率消耗的供電系統仍具有可輕便攜帶與長時間使用及操作等優點。
一般而言,熱光電系統主要包括三大部分:熱產生器(heat source)、輻射器(emitter)、及光電板陣列(PV cell array),此系統的原理係主要藉由燃燒方式加熱輻射器,以利燃燒時所產生之光能轉換成電能,因此如何使輻射器與光電板的使用效率大幅提升而驅動熱光電系統在近年來亦成為熱門研究議題;另,在微型燃燒器中,常利用漩渦系統增加流體滯留時間、加強燃料/助燃氣體混合、並形成一迴流區以提供火焰穩駐機制。
然而,當燃燒器的物理結構在微小化而縮小至臨界尺寸時(如1公分以下),其短距結構係不足使燃料/助燃氣體充分混合,同時熱循環機制也無法有效穩住火焰,結果增加熱散失,造成輻射體僅可產生有限光能予光電板轉成電能;再者,在過去TPV的研究中,輻射體的材質多半以碳化矽(SiC)為材料,優點是其可承受高溫,且為近黑體的輻射物(輻射率可達0.9),但碳化矽的輻射光譜為寬頻光譜,意味著其表面溫度1000K左右時,絕大部分能量分布於光電板轉換光譜區域外,不僅是一種浪費,同時無法吸收的光子多落在紅外線區段,此時光電板會因為吸收熱輻射而溫度上升,過高的溫度則導致光電板損壞,故現有輻射體受限於採用材質而導致後續實際操作之缺失實有待改進。
因此,本發明之目的,是在提供一種用於熱光電系統之燃燒器,其可使輻射器和光電板的效率大幅提升,藉以促進熱光電系統的效能。
於是,本發明用於熱光電電力產生系統(TPV)之燃燒器,其包含有一燃燒裝置及一迴流單;該燃燒裝置具有一燃燒本體,以及一設於燃燒本體內之燃燒頭,其中,該燃燒本體係為一可透光且耐熱材質,而該燃燒本體係由一內、外壁面圈圍而成,並且該內壁面之圈圍處分別形成有一開口及一與該開口相連通之容置空間,而該容置空間恰供該燃燒頭伸置其中,同時並在該內壁面處設有燃燒輔助介質,另外該燃燒本體上分別開設有一供助燃氣體進入之進氣口,一供燃料注入之燃料入口,及一供燃燒時所產生之熱氣產物排出之出氣口,以便該燃料與助燃氣體相互混合且從該燃燒頭處釋出;再者,該迴流罩係罩設於該燃燒本體上,而該迴流罩與該燃燒本體之開口間呈間隔設置,另外該迴流罩罩設該燃燒本體時形成一迴流空間,而該迴流空間經該開口與該容置空間呈相連通狀態外,並且該迴流罩與燃燒本體間之間隙恰可供燃燒時所產生之熱氣產物排出;是以,當該燃燒本體適時採用一氧化金屬沉積石英材質時,可提供更高密度能量,且亦具有加工彈性變化大之特色;再者,該迴流罩得以改變燃燒時燃燒本體內之熱氣流動方向,將熱氣針對該氧化金屬沉積石英材質燃燒本體之外壁面重新加熱,同時產生渦流氣體返回燃燒本體內,提供一致且完全之燃燒效果,不僅大幅減少一氧化碳,更降低氮氧化物之產出。
有關本發明之前述及其他技術內容、特點與功效,在以下配合參考圖式之較佳實施例的詳細說明中,將可清楚的明白。
參閱圖1至圖3,本發明一種用於熱光電電力產生系統(TPV)之燃燒器1,其包含有一燃燒裝置11及一迴流罩12;該燃燒裝置11具有一燃燒本體111,以及一設於燃燒本體111內之燃燒頭112,其中,該燃燒本體111係為一可透光且耐熱材質,如石英、玻璃等材質,於本實施例中,該燃燒本體111係為氧化金屬沉積石英材質;再者,而該燃燒本體111係由一內、外壁面圈圍而成,並且該內壁面之圈圍處分別形成有一開口111A及一與該開口P相連通之容置空間111B,而該容置空間111B恰供該燃燒頭112伸置其中,同時並在該內壁面處設有燃燒輔助介質P,本實施例中,該燃燒輔助介質P係採用氧化金屬顆粒,且其覆蓋率係可任意控制,以符合需求,而為達到本發明之最佳效益,該燃燒本體111之壁外部可適時鍍有一過濾層F(如圖3所示);另外,該燃燒本體111上分別開設有一供助燃氣體進入之進氣口111C,一供燃料注入之燃料入口111D,及一供燃燒時所產生之熱氣產物排出之出氣口O1,以便該燃料與助燃氣體相互混合且從該燃燒頭112處釋出(如圖1之箭號所示);其中,本實施例中,該燃料係採用一液體燃料,俾利適時自該燃料入口111D注入;另,該燃燒頭112可為一金屬如不鏽鋼等材質,其上適時開設有複數孔隙112A,且其孔隙率可依需求做調整燃燒輔助介質。
仍續前述,該用於熱光電系統之燃燒器1之迴流罩12除係罩設於該燃燒本體111上外,該迴流罩12與該燃燒本體111之開口111A間係呈間隔設置,另外該迴流罩12罩設該燃燒本體111時形成一迴流空間121,而該迴流空間121經該開口111A與該容置空間111B呈相連通狀態外,並且該迴流單12與燃燒本體111間之間隙G恰可供燃燒時所產生之熱氣產物排出;值得一提的是,該迴流罩12上可適時增設有複數出氣口O2(如圖2所示),本實施例係以增設四個出氣口O2為例加以說明。
實際燃燒中,由該燃料入口111D注入該液體燃料(如箭號所示)後,該燃燒本體111內之燃燒頭112可大幅提升火焰與液體燃料/助燃氣體之混合體間的接觸面積及熱傳導率,使液體燃料能夠充分汽化並達到火焰穩駐效果;再者,該燃燒本體111壁內部之火焰可加熱具有耐高溫特色之氧化金屬顆粒鍍膜P而有利產生較高輻射能,同時壁外部之過濾層F可將適當的輻射能光波段傳至一光電板(圖中未示),而將光能轉換成電力,其餘輻射能光波段則反射回該燃燒本體111內,以促進該燃燒本體111加熱;特別是,當該氧化金屬顆粒P之覆蓋率可任意控制時,該燃燒本體111內的火焰將適時傳出螢光,藉以增加該光電板之轉換效率,同時,當該迴流罩12下方增設該等出氣口O2時,其可輔助該燃燒本體上111之出氣口O1促進燃燒時所產生之熱氣產物排出之效率。
配合參閱附件1,(a)管為碳化矽材質燃燒本體內的燃燒狀況,(b)管為氧化金屬沉積石英材質燃燒本體未罩有迴流罩的燃燒狀況,最後(c)管為氧化金屬沉積石英材質燃燒本體罩有一迴流罩的燃燒狀況;由圖中燃燒狀況可得知,由於具有氧化金屬石英管的沉積物係以燃燒具有戊羰基鐵(Iron pentacarbonyl)之甲烷燃料時而產生的,其中,戊羰基鐵具有可燃之特質及可溶於有機溶劑如正庾烷(n-heptane)之特色,是以,該沉積物係可容易加工成任何形狀及置於該石英管中之任何處,因此該氧化金屬沉積石英管係具有加工彈性變化大之特色,可改善傳統採用碳化矽或陶瓷管材質而難以加工之缺失;再者,該迴流罩之設置除可改變燃燒時火焰所產生之熱氣產物的流動方向外,更可針對該氧化金屬沉積石英材質燃燒本體之外管壁重新加熱,同時產生渦流氣體返回該氧化金屬沉積石英材質燃燒本體內,提供一致且完全之燃燒效果,不僅避免產生一氧化碳,更阻止氮氧化物之生成,因而提升與其連結之光電板將光能轉成電能之效能。
歸納前述,本發明用於熱光電系統之燃燒器,利用氧化金屬沉積石英材質燃燒本體及迴流罩提升輻射能光波的產能,進而促進與該燃燒器連結之光電板將光能轉成電能之效用,藉以微型尺寸及低能量創造出更高效密度之電力源,充分利用資源並確實達到本發明之目的。
惟以上所述者,僅為說明本發明之較佳實施例而已,當不能以此限定本發明實施之範圍,即大凡依本發明申請專利範圍及發明說明書內容所作之簡單等效變化與修飾,皆應仍屬本發明專利涵蓋之範圍內。
1...燃燒器
11...燃燒裝置
12...迴流罩
111...燃燒本體
112...燃燒頭
111A...開口
111B...容置空間
111C...進氣口
111D...燃料入口
121...迴流空間
112A...孔隙
O1...出氣口
O2...出氣口
P...燃燒輔助介質
F...過濾層
G...間隙
圖1是本發明之較佳實施例示意圖;
圖2是本發明之較佳實施例立體圖;
圖3是本發明另一較佳實施例示意圖;及
附件1是本發明與他型燃燒器之燃燒示意圖。
1...燃燒器
11...燃燒裝置
12...迴流罩
111...燃燒本體
112...燃燒頭
111A...開口
111B...容置空間
111C...進氣口
111D...燃料入口
121...迴流空間
112A...孔隙
O1...出氣口
P...燃燒輔助介質
G...間隙
Claims (6)
- 一種用於熱光電系統(TPV)之燃燒器,其包含有:一燃燒裝置,其具有一燃燒本體,以及一設於燃燒本體內之燃燒頭,其中,該燃燒本體係為一可透光且耐熱材質,而該燃燒本體係由一內、外壁面圈圍而成,並且該內壁面之圈圍處分別形成有一開口及一與該開口相連通之容置空間,而該容置空間恰供該燃燒頭伸置其中,同時並在該內壁面處設有燃燒輔助介質,另外該燃燒本體上分別開設有一供助燃氣體進入之進氣口,一供燃料注入之燃料入口,及一供燃燒時所產生之熱氣產物排出之出氣口,以便該燃料與助燃氣體相互混合且從該燃燒頭處釋出;及一迴流罩,其係罩設於該燃燒本體上,而該迴流罩與該燃燒本體之開口間呈間隔設置,另外該迴流罩罩設該燃燒本體時形成一迴流空間,而該迴流空間經該開口與該容置空間呈相連通狀態外,並且該迴流罩與燃燒本體間之間隙恰可供燃燒時所產生之熱氣產物排出。
- 依據申請專利範圍第1項所述之燃燒器,其中,該燃燒本體係為一氧化金屬沉積石英材質,而該燃燒輔助介質係為一氧化金屬顆粒。
- 依據申請專利範圍第1或2項所述之燃燒器,其中,該燃燒本體之外壁面則設有一過濾層。
- 依據申請專利範圍第1或2項所述之燃燒器,其中,該燃燒頭係為一金屬材質,且該燃燒頭上開設有複數孔隙。
- 依據申請專利範圍第1或2項所述之燃燒器,其中,該迴流罩上亦可加設有出氣口。
- 依據申請專利範圍第1或2項所述之燃燒器,其中,該迴流罩係為一石英材質。
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US13/466,364 US9322548B2 (en) | 2011-12-16 | 2012-05-08 | Combustor applied in thermophotovoltaic system |
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CN103591584A (zh) * | 2013-11-07 | 2014-02-19 | 徐东 | 新型节能燃气燃烧器 |
DE102014103813A1 (de) * | 2014-03-20 | 2015-09-24 | Webasto SE | Verdampferbrenneranordnung für ein mobiles, mit flüssigem Brennstoff betriebenes Heizgerät |
DE102014103817B4 (de) * | 2014-03-20 | 2018-07-19 | Webasto SE | Verdampferbrenner für ein mobiles, mit flüssigem Brennstoff betriebenes Heizgerät |
DE102014103815B4 (de) | 2014-03-20 | 2018-07-19 | Webasto SE | Verdampferbrenner |
DE102014103812A1 (de) | 2014-03-20 | 2015-09-24 | Webasto SE | Verdampferbrenner für ein mobiles, mit flüssigem Brennstoff betriebenes Heizgerät |
CN104235839B (zh) * | 2014-09-11 | 2017-01-11 | 浙江大学 | 一种液体燃料催化重整微型燃烧器 |
CN105356845A (zh) * | 2015-12-10 | 2016-02-24 | 兰州理工大学 | 平板热管光伏光热一体化集热器 |
CN109307264B (zh) * | 2018-10-16 | 2019-12-13 | 北京动力机械研究所 | 基于液态燃料的微型燃烧器 |
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US5942047A (en) * | 1997-04-07 | 1999-08-24 | Jx Crystals Inc. | Electric power generator including a thermophotovoltaic cell assembly, a composite ceramic emitter and a flame detection system |
US6284969B1 (en) * | 1997-05-15 | 2001-09-04 | Jx Crystals Inc. | Hydrocarbon fired thermophotovoltaic furnace |
US6435861B1 (en) * | 1997-06-10 | 2002-08-20 | Usf Filtration And Separations Group, Inc. | Gas burner assembly and method of making |
US6379789B1 (en) * | 2000-10-04 | 2002-04-30 | Creare Inc. | Thermally-sprayed composite selective emitter |
US8581090B1 (en) * | 2010-05-14 | 2013-11-12 | Jx Crystals Inc. | Fuel fired ThermoPhotoVoltaic (TPV) cylindrical power supply and battery replacement with catalytic matched emitter or post IR emitter array |
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