JP2012142123A - 燃料電池システム - Google Patents
燃料電池システム Download PDFInfo
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Abstract
【解決手段】燃料電池システム1は、水素含有燃料と酸化剤とを燃焼させる燃焼機20を備えている。制御部11の判定部103は、温度計21及び温度検出部102の検出結果に基づいて、燃焼機20の温度変化を判定することによって、水素含有燃料の熱量やガス濃度や酸化剤のガス濃度の変化を把握することができる。更に、判定部103によって温度変化があると判定された場合、調整部104が、水素発生部4に対する水素含有燃料の供給量を調整することによって、セルスタック5の発電で用いられる水素リッチガスの供給量を最適にすることができる。このように、燃料電池システム1内に燃焼機20を設けるだけで、水素含有燃料の性状の変化に対応できる。
【選択図】図1
Description
図1に示されるように、燃料電池システム1は、脱硫部2と、水気化部3と、水素発生部4と、セルスタック5と、オフガス燃焼部6と、水素含有燃料供給部7と、水供給部8と、酸化剤供給部9と、パワーコンディショナー10と、制御部11と、を備えている。燃料電池システム1は、水素含有燃料及び酸化剤を用いて、セルスタック5にて発電を行う。燃料電池システム1におけるセルスタック5の種類は特に限定されず、例えば、固体高分子形燃料電池(PEFC:Polymer Electrolyte Fuel Cell)、固体酸化物形燃料電池(SOFC:Solid Oxide Fuel Cell)、リン酸形燃料電池(PAFC:Phosphoric Acid Fuel Cell)、溶融炭酸塩形燃料電池(MCFC:Molten Carbonate Fuel Cell)、及び、その他の種類を採用することができる。なお、セルスタック5の種類、水素含有燃料の種類、及び改質方式等に応じて、図1に示す構成要素を適宜省略してもよい。
図6を参照して、第二実施形態に係る燃料電池システム1について説明する。第二実施形態に係る燃料電池システム1は、燃焼機20に供給される水素含有燃料のガス濃度を検出する構成を備えている。燃焼機20の上流には、ガスセンサ(濃度検出部)26が配置されている。ガスセンサ26は、例えば、酸素センサや窒素センサによって構成されている。ガスセンサ26は、水素含有燃料供給部22から燃焼機20へ供給される水素含有燃料の酸素や窒素の濃度を検出できる。ガスセンサ26は、制御部11と電気的に接続されており、検出結果を制御部11へ出力する。なお、ガスセンサ26の位置は特に限定されず、水素含有燃料の酸素や窒素の濃度を検出できる位置であればどこでもよい。
図9を参照して、第三実施形態に係る燃料電池システム1について説明する。第三実施形態に係る燃料電池システム1は、第二実施形態に係る燃料電池システム1に対して、更に、燃焼機20に供給される酸化剤のガス濃度を検出する構成を備えている。燃焼機20の上流には、ガスセンサ(濃度検出部)27が配置されている。ガスセンサ27は、例えば、酸素センサや窒素センサによって構成されている。ガスセンサ27は、酸化剤供給部23から燃焼機20へ供給される酸化剤の酸素や窒素の濃度を検出できる。ガスセンサ27は、制御部11と電気的に接続されており、検出結果を制御部11へ出力する。なお、ガスセンサ27の位置は特に限定されず、酸化剤の酸素や窒素の濃度を検出できる位置であればどこでもよい。
Claims (6)
- 水素含有燃料を用いて水素含有ガスを発生させる水素発生部と、
前記水素含有ガスを用いて発電を行うセルスタックと、を備える燃料電池システムであって、
所定量の前記水素含有燃料と所定量の酸化剤とを燃焼させる燃焼部と、
前記燃焼部の温度を検出する温度検出部と、
前記温度検出部の検出結果に基づいて前記燃焼部の温度変化を判定する判定部と、
前記判定部によって温度変化があると判定された場合、前記水素発生部に対する前記水素含有燃料の供給量を調整する調整部と、を備えることを特徴とする燃料電池システム。 - 前記水素含有燃料または前記酸化剤の濃度を検出する濃度検出部を更に備えることを特徴とする請求項1記載の燃料電池システム。
- 前記燃焼部によって発生する熱を利用する熱利用部を更に備え、
前記熱利用部は、貯湯槽であることを特徴とする請求項1または2記載の燃料電池システム。 - 前記燃焼部によって発生する熱を利用する熱利用部を更に備え、
前記熱利用部は、前記水素発生部へ供給される水蒸気を生成する水気化部であることを特徴とする請求項1または2記載の燃料電池システム。 - 前記燃焼部によって発生する熱を利用する熱利用部を更に備え、
前記熱利用部は、前記水素発生部へ供給される前記水素含有燃料を脱硫する脱硫部であることを特徴とする請求項1または2記載の燃料電池システム。 - 前記燃焼部によって発生する熱を利用する熱利用部を更に備え、
前記熱利用部は、システム内の水の凍結を防止する凍結防止部であることを特徴とする請求項1または2記載の燃料電池システム。
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JP2010292691A JP5686592B2 (ja) | 2010-12-28 | 2010-12-28 | 燃料電池システム |
PCT/JP2011/079900 WO2012090878A1 (ja) | 2010-12-28 | 2011-12-22 | 燃料電池システム |
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JP2018120720A (ja) * | 2017-01-24 | 2018-08-02 | 大阪瓦斯株式会社 | エネルギ供給システム |
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JPH11126629A (ja) * | 1997-10-23 | 1999-05-11 | Toshiba Corp | 燃料電池発電設備 |
JP2004063170A (ja) * | 2002-07-26 | 2004-02-26 | Matsushita Electric Works Ltd | 改質装置 |
JP2004108173A (ja) * | 2002-09-13 | 2004-04-08 | Rinnai Corp | コージェネレーションシステム |
JP2004356011A (ja) * | 2003-05-30 | 2004-12-16 | Fuji Electric Holdings Co Ltd | 燃料電池発電装置とその運転方法 |
JP2005268118A (ja) * | 2004-03-19 | 2005-09-29 | Corona Corp | 改質型燃料電池システム及び改質型燃料電池システムの運転制御方法 |
JP2005294207A (ja) * | 2004-04-05 | 2005-10-20 | Babcock Hitachi Kk | 燃料電池システム |
JP2006318750A (ja) * | 2005-05-12 | 2006-11-24 | Aisin Seiki Co Ltd | 燃料電池システム |
JP2009096706A (ja) * | 2007-09-27 | 2009-05-07 | Sanyo Electric Co Ltd | 燃料電池用改質装置 |
WO2010010699A1 (ja) * | 2008-07-25 | 2010-01-28 | トヨタ自動車株式会社 | 燃料電池システム、および、燃料電池システムの制御方法 |
JP2010067548A (ja) * | 2008-09-12 | 2010-03-25 | Toto Ltd | 燃料電池システム |
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Patent Citations (10)
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JPH11126629A (ja) * | 1997-10-23 | 1999-05-11 | Toshiba Corp | 燃料電池発電設備 |
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JP2018120720A (ja) * | 2017-01-24 | 2018-08-02 | 大阪瓦斯株式会社 | エネルギ供給システム |
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