JP2015533701A - 航空機燃料タンク可燃性低減方法およびシステム - Google Patents
航空機燃料タンク可燃性低減方法およびシステム Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0039—Inorganic membrane manufacture
- B01D67/0067—Inorganic membrane manufacture by carbonisation or pyrolysis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/021—Carbon
- B01D71/0212—Carbon nanotubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
- B64D37/32—Safety measures not otherwise provided for, e.g. preventing explosive conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D2053/221—Devices
- B01D2053/223—Devices with hollow tubes
- B01D2053/224—Devices with hollow tubes with hollow fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/10—Nitrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/104—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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Abstract
Description
加圧空気供給源から供給空気を受けるように構成される空気分離モジュールと、
空気分離モジュール内にある少なくとも95重量パーセント炭素を含む炭素膜であって、炭素膜が、供給空気からの酸素を少なくとも120℃(248°F)の温度で炭素膜に透過させるとともに、供給空気から酸素を除去する結果として空気分離モジュールから窒素を多く含む空気を生成するように構成される、炭素膜と、航空機に搭載されるとともに、窒素を多く含む空気を受けるように構成される燃料タンクとを備える航空機燃料タンク可燃性低減システムが提供される。
J=f=2×π×L×P((p1−p2)/In(ID/OD))
ここで、Lはチューブ長さ、Pは透過性、p1およびp2は、チューブの内側および外側のそれぞれにおける分圧、および、IDおよびODはそれぞれ繊維の内径および外径である。これにより、フラックスは入口圧力を高くすることで、高くすることができる。しかしながら、システムにより使用される圧力が高ければ高いほど、航空機に対して突き付けられる電力要求および/または給気要求も大きくなり、それにより、燃料効率が低下する。
12 空気分離モジュール
13 炭素膜
14 燃料タンク
16 加圧空気供給源
17 供給空気
18 透過ガス
19 窒素を多く含む空気
20 システム
22 熱交換器
24 冷却された窒素を多く含む空気
30 システム
32 熱交換器
34 冷却された供給空気
40 システム
42 フィルタ
44 濾過された供給空気
Claims (14)
- 炭素膜(13)を含む空気分離モジュール(12)へ加圧空気を供給するステップであって、供給空気(17)が55psig以下の通常圧力を示し、前記炭素膜(13)が少なくとも95重量パーセント炭素を含む、ステップと、
前記炭素膜(13)を前記供給空気(17)と接触させて、前記供給空気からの酸素を前記炭素膜(13)に透過させるとともに、前記供給空気(17)から酸素を除去する結果として前記空気分離モジュール(12)から窒素を多く含む空気を生成するステップと、
窒素を多く含む前記空気を航空機に搭載される燃料タンク(14)へ供給するステップと、
を備える航空機燃料タンク可燃性低減方法。 - 前記炭素膜(13)は、炭素中空繊維、螺旋巻回された炭素繊維シート、カーボンナノチューブシート、または、これらの組み合わせのいずれかを備える請求項1に記載の方法。
- 前記炭素膜が熱分解された高分子中空繊維を備える、請求項1または2に記載の方法。
- 前記供給空気(17)が少なくとも120℃(248°F)の温度を示す、請求項1から3のいずれか一項に記載の方法。
- 前記供給空気(17)が120℃〜195℃(248°F〜383°F)の温度を示す、請求項1から4のいずれか一項に記載の方法。
- 前記供給空気を熱交換器内で実質的に冷却することなく加圧空気供給源(16)から加圧空気を前記空気分離モジュール(12)へ供給するステップを更に備える請求項1から5のいずれか一項に記載の方法。
- 窒素を多く含む前記空気を前記空気分離モジュール(12)から前記燃料タンク(14)へ供給する前に窒素を多く含む前記空気を熱交換器(22)内で実質的に冷却するステップを更に備える請求項1から6のいずれか一項に記載の方法。
- 前記供給空気(17)が55psig以下の通常圧力を示す、請求項1から7のいずれか一項に記載の方法。
- 加圧空気供給源(16)と、
前記加圧空気供給源(16)から供給空気(17)を受けるように構成される空気分離モジュール12と、
前記空気分離モジュール(12)内にある少なくとも95重量パーセント炭素を含む炭素膜(13)であって、前記炭素膜(13)が、前記供給空気(17)からの酸素を少なくとも120℃(248°F)の温度で前記炭素膜(13)に透過させるとともに、前記供給空気(17)から酸素を除去する結果として前記空気分離モジュール(12)から窒素を多く含む空気を生成するように構成される、炭素膜(13)と、
航空機に搭載されるとともに、窒素を多く含む前記空気を受けるように構成される燃料タンク(14)と、
を備える航空機燃料タンク可燃性低減システム。 - 前記炭素膜(13)は、熱分解された高分子中空繊維、螺旋巻回された炭素繊維シート、カーボンナノチューブシート、または、これらの組み合わせを備える、請求項9に記載のシステム。
- 前記炭素膜(13)は、前記供給空気(17)からの酸素を120℃〜195℃(248°F〜383°F)の温度で前記炭素膜(13)に透過させるように構成される、請求項9または10に記載のシステム。
- 前記炭素膜(13)は、前記供給空気(17)からの酸素を55psig以下の通常圧力で前記炭素膜(13)に透過させるように構成される、請求項9に記載のシステム。
- 前記加圧空気供給源(16)の下流側において前記空気分離モジュール(12)の手前に冷却熱交換器を有さない請求項9から12のいずれか一項に記載のシステム。
- 前記炭素膜(13)は、160°Fの動作温度で測定されるときに、窒素透過性に対する酸素透過性の選択性比率が少なくとも9を示す、請求項9から13のいずれか一項に記載のシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/594,525 US9061249B2 (en) | 2012-08-24 | 2012-08-24 | Aircraft fuel tank flammability reduction method and system |
US13/594,525 | 2012-08-24 | ||
PCT/US2013/052133 WO2014058515A2 (en) | 2012-08-24 | 2013-07-25 | Aircraft fuel tank flammability reduction method and system |
Publications (2)
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JP2015533701A true JP2015533701A (ja) | 2015-11-26 |
JP6181184B2 JP6181184B2 (ja) | 2017-08-16 |
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US (1) | US9061249B2 (ja) |
EP (1) | EP2888168B1 (ja) |
JP (1) | JP6181184B2 (ja) |
KR (1) | KR101983870B1 (ja) |
CN (1) | CN104520194B (ja) |
AU (1) | AU2013330386B2 (ja) |
CA (1) | CA2873226C (ja) |
ES (1) | ES2592777T3 (ja) |
WO (1) | WO2014058515A2 (ja) |
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EP2888168A2 (en) | 2015-07-01 |
CN104520194A (zh) | 2015-04-15 |
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CA2873226A1 (en) | 2014-04-17 |
WO2014058515A2 (en) | 2014-04-17 |
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