JP4271245B2 - 燃料電池システム - Google Patents
燃料電池システム Download PDFInfo
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- JP4271245B2 JP4271245B2 JP2007084286A JP2007084286A JP4271245B2 JP 4271245 B2 JP4271245 B2 JP 4271245B2 JP 2007084286 A JP2007084286 A JP 2007084286A JP 2007084286 A JP2007084286 A JP 2007084286A JP 4271245 B2 JP4271245 B2 JP 4271245B2
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Description
図1は第1の実施形態に係る燃料電池システムの構成図である。この燃料電池システムの概略を説明する。
CH3OH+O2→2H2O+CO2 (1)。
Qout:燃料電池20から外部への自然対流による放熱量、
Qpower:燃料電池20の発電による発熱量、
Qin:燃焼容器3内の熱量、
Qcomb:燃焼容器3での燃焼による熱量、
Qvap:燃焼容器3での燃料と水の気化による熱量
(ここで、Qin=Qcomb+Qvap)。
燃料電池20の温度下降時:Qout<Qpower+Qin、
燃料電池20の温度上昇時:Qout>Qpower+Qin。
この場合、燃料電池20の放熱量Qoutと燃料電池20の発熱量が等しくなるため、燃料電池20の温度は保たれる。
CH3OCH3+3H2O→6H2+2CO2 (2)。
CH3OH+H2O→3H2+CO2 (3)。
CO+H2O→H2+CO2 (4)。
H2→2H++2e- (6)。
酸化剤極21cに供給された酸素は、下記(7)式に示すように反応する。
1/2O2+2H++2e-→H2O (7)。
図3は第2の実施形態に係る燃料電池システムの構成図である。以下においては、第2の実施形態の燃料電池システムのうち、第1の実施形態の燃料電池システムと異なる構成を主に説明する。
図4は第3の実施形態に係る燃料電池システムの構成図である。以下においては、第3の実施形態の燃料電池システムのうち、第1の実施形態の燃料電池システムと異なる構成を主に説明する。
図5は第4の実施形態に係る燃料電池システムの構成図である。以下においては、第4の実施形態の燃料電池システムのうち、第3の実施形態の燃料電池システムと異なる構成を主に説明する。
図6は第5の実施形態に係る燃料電池システムの構成図である。以下においては、第5の実施形態の燃料電池システムのうち、第3の実施形態の燃料電池システムと異なる構成を主に説明する。
Claims (6)
- 炭化水素系の燃料を供給する燃料供給手段と、
水を供給する水供給手段と、
酸素含有ガスを供給する酸素供給手段と、
前記燃料供給手段、水供給手段および酸素供給手段に接続され、燃料と酸素を燃焼反応させる触媒を収容した燃焼容器と、
前記燃焼容器に接続され、燃料と水を反応させて水素含有ガスに変換する改質器と、
前記燃焼容器と熱移動可能に配置され、酸素含有ガスと、前記改質器から供給される水素含有ガスとを電気化学反応させて発電する燃料電池と、
前記燃料供給手段、水供給手段、および酸素供給手段を制御して、前記燃焼容器に供給される燃料、水および酸素含有ガスの流量を調節する制御部と
を有することを特徴とする燃料電池システム。 - 前記制御部は、起動時に前記燃焼容器に前記燃料と酸素含有ガスのみを供給し、定常発電時に前記燃焼容器に前記燃料と水のみを供給し、発電抑制時に前記燃焼容器に前記燃料、水および酸素含有ガスを供給して前記燃焼容器での燃焼反応により燃料の一部を残存させるように、前記燃料供給手段、水供給手段、および酸素供給手段を制御することを特徴とする請求項1に記載の燃料電池システム。
- 前記制御部は、前記燃料電池の温度が低下したときに前記燃焼容器への酸素含有ガスの供給量を増加させ、前記燃料電池の温度が上昇したときに前記燃焼容器への酸素含有ガスの供給量を減少させることを特徴とする請求項2に記載の燃料電池システム。
- 前記燃料電池の温度を検知する温度検知器を有することを特徴とする請求項1ないし3のいずれか1項に記載の燃料電池システム。
- 前記燃焼容器は前記燃料および水を気化させることを特徴とする請求項1ないし4のいずれか1項に記載の燃料電池システム。
- 前記燃焼容器はマイクロチャネル流路を有することを特徴とする請求項1ないし5のいずれか1項に記載の燃料電池システム。
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JP2007084286A JP4271245B2 (ja) | 2007-03-28 | 2007-03-28 | 燃料電池システム |
US12/050,108 US20080241616A1 (en) | 2007-03-28 | 2008-03-17 | Fuel cell system |
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JP2007084286A JP4271245B2 (ja) | 2007-03-28 | 2007-03-28 | 燃料電池システム |
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US20120270122A1 (en) * | 2009-09-25 | 2012-10-25 | Danmarks Tekniske Universitet - Dtu | Method of operating a direct dme fuel cell system |
KR101135528B1 (ko) * | 2009-12-04 | 2012-04-09 | 현대자동차주식회사 | 냉 시동성 개선을 위한 연료 전지 시스템 및 그 제어 방법 |
FR3017491B1 (fr) * | 2014-02-10 | 2020-10-30 | Snecma | Groupe de generation electrique et procede de demarrage |
JP5976051B2 (ja) * | 2014-08-04 | 2016-08-23 | 株式会社フジクラ | 燃料電池冷却システム |
CA2960800C (en) * | 2014-09-19 | 2023-08-22 | Watt Fuel Cell Corp. | Thermal management of fuel cell units and systems |
WO2017016567A2 (en) * | 2015-07-30 | 2017-02-02 | Alameri Salem Mohamed Salem Mohamed | Heating unit for the production of renewable energy electricity |
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JP4476974B2 (ja) * | 2006-07-11 | 2010-06-09 | 株式会社東芝 | 水素発生装置及び燃料電池システム |
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