JPH04292867A - Power generating set - Google Patents
Power generating setInfo
- Publication number
- JPH04292867A JPH04292867A JP3080635A JP8063591A JPH04292867A JP H04292867 A JPH04292867 A JP H04292867A JP 3080635 A JP3080635 A JP 3080635A JP 8063591 A JP8063591 A JP 8063591A JP H04292867 A JPH04292867 A JP H04292867A
- Authority
- JP
- Japan
- Prior art keywords
- fuel gas
- power generation
- fuel
- supply pipe
- gas supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002737 fuel gas Substances 0.000 claims abstract description 101
- 239000007789 gas Substances 0.000 claims abstract description 39
- 238000005192 partition Methods 0.000 claims abstract description 34
- 239000000446 fuel Substances 0.000 claims abstract description 31
- 239000007787 solid Substances 0.000 claims abstract description 4
- 238000010248 power generation Methods 0.000 claims description 61
- 230000001590 oxidative effect Effects 0.000 claims description 19
- 230000007423 decrease Effects 0.000 abstract description 6
- 239000011148 porous material Substances 0.000 abstract description 6
- 239000000843 powder Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 239000002002 slurry Substances 0.000 description 9
- 238000003487 electrochemical reaction Methods 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 5
- 239000011195 cermet Substances 0.000 description 5
- 229910002060 Fe-Cr-Al alloy Inorganic materials 0.000 description 4
- 229910018487 Ni—Cr Inorganic materials 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000007784 solid electrolyte Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229910017060 Fe Cr Inorganic materials 0.000 description 2
- 229910002544 Fe-Cr Inorganic materials 0.000 description 2
- 229910017112 Fe—C Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 229910002328 LaMnO3 Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- -1 oxygen ions Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910002969 CaMnO3 Inorganic materials 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910002254 LaCoO3 Inorganic materials 0.000 description 1
- 229910002340 LaNiO3 Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 229910002077 partially stabilized zirconia Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Fuel Cell (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、固体電解質型燃料電池
素子を用いた発電装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power generation device using a solid electrolyte fuel cell element.
【０００２】0002
【従来の技術】最近、燃料電池が発電装置として注目さ
れている。これは、燃料が有する化学エネルギーを直接
電気エネルギーに変換できる装置で、カルノーサイクル
の制約を受けないため、本質的に高いエネルギー変換効
率を有し、燃料の多様化が可能で（ナフサ、天然ガス、
メタノール、石炭改質ガス、重油等）、低公害で、しか
も発電効率が設備規模によって影響されず、極めて有望
な技術である。特に固体電解質型燃料電池 （ＳＯＦＣ
） は、１０００℃の高温で作動するため電極反応が極
めて活発で、高価な白金などの貴金属触媒を全く必要と
せず、分極が小さく、出力電圧も比較的高いため、エネ
ルギー変換効率が他の燃料電池にくらべ著しく高い。更
に、構造材は全て固体から構成されるため、安定且つ長
寿命である。2. Description of the Related Art Recently, fuel cells have been attracting attention as power generation devices. This is a device that can directly convert the chemical energy of fuel into electrical energy, and because it is not subject to the restrictions of the Carnot cycle, it has inherently high energy conversion efficiency and can be used for a variety of fuels (naphtha, natural gas, etc.). ,
It is an extremely promising technology as it produces low pollution (methanol, reformed coal gas, heavy oil, etc.), and its power generation efficiency is not affected by the scale of the facility. In particular, solid oxide fuel cells (SOFC)
) operates at a high temperature of 1,000°C, resulting in extremely active electrode reactions, does not require any precious metal catalysts such as expensive platinum, has low polarization, and has a relatively high output voltage, so its energy conversion efficiency is higher than that of other fuels. Significantly more expensive than batteries. Furthermore, since all the structural materials are made of solid materials, they are stable and have a long life.
【０００３】このうち、特に有底円筒状のＳＯＦＣ素子
を用いた発電装置について図３に示す。図３においては
、有底円筒状の多孔質支持体６の表面に、空気電極７、
固体電解質８、燃料電極９を順次形成し、有底円筒状の
ＳＯＦＣ素子５を構成する。このＳＯＦＣ素子５を発電
室１３内の所定位置に固定する。但し、通常はＳＯＦＣ
素子５を直列及び並列に多数接続して集合電池を構成す
るのであるが、図３においては便宜上ＳＯＦＣ素子５を
一個だけ図示する。発電室１３の下方には燃料ガス室１
４を設け、燃料ガス室１４と発電室１３とを有底部側隔
壁１１で区分する。燃料ガス室１４の下側には断熱隔壁
１２が設けられる。発電室１３の上方には排ガス室３を
設け、排ガス室３と発電室１３とを開口端側隔壁４で区
分する。開口端側隔壁４には貫通孔４ａを形成し、この
貫通孔４ａにＳＯＦＣ素子５の開口端部を挿通する。
排ガス室３の上側に断熱隔壁１を設け、その貫通孔に酸
化ガス供給管２を挿通し、保持する。酸化ガス供給管２
の先端開口は、ＳＯＦＣ素子５の内側空間１０に位置し
、ＳＯＦＣ素子５の有底部へと向って開口する。[0003] Among these, a power generation device using a bottomed cylindrical SOFC element is shown in FIG. In FIG. 3, an air electrode 7,
A solid electrolyte 8 and a fuel electrode 9 are sequentially formed to constitute a bottomed cylindrical SOFC element 5. This SOFC element 5 is fixed at a predetermined position within the power generation chamber 13. However, usually SOFC
Although a large number of elements 5 are connected in series and parallel to form an assembled battery, only one SOFC element 5 is shown in FIG. 3 for convenience. A fuel gas chamber 1 is located below the power generation chamber 13.
4 is provided, and the fuel gas chamber 14 and the power generation chamber 13 are separated by the bottomed side partition wall 11. A heat insulating partition wall 12 is provided below the fuel gas chamber 14 . An exhaust gas chamber 3 is provided above the power generation chamber 13, and the exhaust gas chamber 3 and the power generation chamber 13 are separated by an open end side partition wall 4. A through hole 4a is formed in the partition wall 4 on the open end side, and the open end of the SOFC element 5 is inserted into the through hole 4a. A heat insulating partition wall 1 is provided above the exhaust gas chamber 3, and an oxidizing gas supply pipe 2 is inserted and held in the through hole thereof. Oxidizing gas supply pipe 2
The tip opening is located in the inner space 10 of the SOFC element 5 and opens toward the bottomed part of the SOFC element 5.
【０００４】この発電装置の動作時に、矢印Ａのように
、酸化ガスを酸化ガス室より酸化ガス供給管２へと供給
すると、酸化ガス供給口より流出した酸化ガスが有底部
で反転し、多孔質支持体６の内側空間１０内を流れ、矢
印Ｂのように排ガス室３内に流出する。一方、底部の断
熱隔壁１２の燃料ガス供給孔１２ａ より矢印Ｃのよう
に燃料ガスを供給すると、燃料ガス室１４内の圧力が高
くなるので、有底部側隔壁１１の燃料ガス供給口１１ａ
を通して燃料ガスが矢印Ｄのように発電室１３内へと
供給される。この燃料ガスが燃料電極９の表面に沿って
流れると、燃料電極９の表面で上記燃料ガスと固体電解
質内を拡散してきた酸素イオンとが反応し、その結果、
空気電極７と燃料電極９との間に電流が流れる。発電に
使用された燃料ガスは、開口端側隔壁４とＳＯＦＣ素子
５の開口端部との間隙を通り抜け、矢印Ｅのように排ガ
ス室３内に流れる。このＳＯＦＣ素子５は１０００℃程
度の高温下で使用されるため、シール部なしで構成でき
る図３に示す形態が好ましい態様といえる。During operation of this power generation device, when oxidizing gas is supplied from the oxidizing gas chamber to the oxidizing gas supply pipe 2 as shown by arrow A, the oxidizing gas flowing out from the oxidizing gas supply port is reversed at the bottomed part and the porous The gas flows through the inner space 10 of the air support 6 and flows out into the exhaust gas chamber 3 in the direction of arrow B. On the other hand, when fuel gas is supplied from the fuel gas supply hole 12a of the bottom heat insulating partition wall 12 as shown by arrow C, the pressure inside the fuel gas chamber 14 increases.
Fuel gas is supplied into the power generation chamber 13 as shown by arrow D through the power generation chamber 13 . When this fuel gas flows along the surface of the fuel electrode 9, the fuel gas and oxygen ions that have diffused in the solid electrolyte react on the surface of the fuel electrode 9, and as a result,
A current flows between the air electrode 7 and the fuel electrode 9. The fuel gas used for power generation passes through the gap between the open end side partition wall 4 and the open end of the SOFC element 5, and flows into the exhaust gas chamber 3 as shown by arrow E. Since this SOFC element 5 is used at a high temperature of about 1000° C., the form shown in FIG. 3, which can be constructed without a sealing part, is a preferable form.
【０００５】[0005]
【発明が解決しようとする課題】ＳＯＦＣの実用化にお
いてはコストの低減と電力密度の向上が必要である。こ
のためＳＯＦＣ素子５を長尺化して一本当たりの発電出
力を上げることが要請されている。しかし、図３に示す
ような構成のＳＯＦＣにおいては、特に燃料ガス流の濃
度勾配に起因して著しい温度勾配が生ずるという問題が
あった。即ち、燃料ガス供給口１１ａ の近辺では、ま
だ燃料含有量が多いため、この付近では電気化学的反応
に消費される燃料の量が多く、温度が上昇する。この温
度上昇によって、燃料電極９における酸素イオンと燃料
との電気化学的反応がますます活性化する。[Problems to be Solved by the Invention] In order to put SOFC into practical use, it is necessary to reduce costs and improve power density. For this reason, it is required to increase the power generation output per SOFC element 5 by increasing its length. However, the SOFC having the configuration as shown in FIG. 3 has a problem in that a significant temperature gradient occurs, particularly due to the concentration gradient of the fuel gas flow. That is, since the fuel content is still large in the vicinity of the fuel gas supply port 11a, a large amount of fuel is consumed in the electrochemical reaction in this vicinity, and the temperature rises. This temperature increase further activates the electrochemical reaction between oxygen ions and fuel at the fuel electrode 9.
【０００６】一方、燃料ガス供給口１１ａ から離れる
につれ、燃料ガス中の燃料濃度が減少し、この結果電気
化学的反応に消費される燃料の量が減少する。このため
、燃料電極９の温度があまり上昇せず、従って電気化学
的反応が一層不活発となる。しかも、濃度が減少した燃
料ガス中には、電気化学的反応の結果としてかなりＣＯ
２ や水蒸気等が含まれており、これらが燃料電極９の
表面に付着して反応を阻害するため、ますます反応が不
活発となる。このため、燃料ガス流の上流側と下流側と
では大きな温度勾配が生じ、長期間発電装置を作動させ
た場合にクラック発生の原因となりうるし、発電効率自
体にも悪影響がある。そして、この傾向は、ＳＯＦＣ素
子５が長くなるにつれて一層激しく、顕著になる。On the other hand, as the distance from the fuel gas supply port 11a increases, the fuel concentration in the fuel gas decreases, and as a result, the amount of fuel consumed in the electrochemical reaction decreases. Therefore, the temperature of the fuel electrode 9 does not rise much, and therefore the electrochemical reaction becomes even more inactive. Furthermore, the reduced concentration of fuel gas contains a significant amount of CO as a result of electrochemical reactions.
2 and water vapor, etc., which adhere to the surface of the fuel electrode 9 and inhibit the reaction, making the reaction even more inactive. For this reason, a large temperature gradient occurs between the upstream and downstream sides of the fuel gas flow, which can cause cracks to occur when the power generation device is operated for a long period of time, and has a negative effect on the power generation efficiency itself. This tendency becomes more severe and noticeable as the SOFC element 5 becomes longer.
【０００７】本発明の課題は、有底筒状のＳＯＦＣ素子
を発電室内に設置して発電を行う発電装置において、発
電室内を流れる燃料ガス中の燃料濃度の勾配を小さくし
、これにより生ずる温度差を低減することであるる。An object of the present invention is to reduce the gradient of fuel concentration in the fuel gas flowing inside the power generation chamber in a power generation device in which a bottomed cylindrical SOFC element is installed in the power generation chamber, and to reduce the temperature caused by this. The goal is to reduce the difference.
【０００８】[0008]
【課題を解決するための手段】本発明は、有底筒状の固
体電解質型燃料電池素子が発電室内に設置され、前記素
子の開口端側に設けられた開口端側隔壁によって前記発
電室と排ガス室とが区分され、この開口端側隔壁に形成
された貫通孔に前記素子の開口端部が挿通され、前記素
子の有底部側に設けられた有底部側隔壁によって前記発
電室と燃料ガス室とが区分され、前記発電室に燃料ガス
供給管が突出しており、前記素子の内側空間に酸化ガス
を供給しかつ前記燃料ガス室から前記燃料ガス供給管の
内側空間を通して前記発電室へと燃料ガスを供給するよ
うに構成された発電装置に係るものである。[Means for Solving the Problems] In the present invention, a bottomed cylindrical solid oxide fuel cell element is installed in a power generation chamber, and an open end side partition wall provided on an open end side of the element connects the power generation chamber to the power generation chamber. The open end of the element is inserted into a through hole formed in the partition wall on the open end side, and the partition wall on the bottom side provided on the bottom side of the element separates the power generation chamber from the fuel gas. A fuel gas supply pipe protrudes into the power generation chamber, and supplies oxidizing gas to the inner space of the element and connects the fuel gas chamber to the power generation chamber through the inner space of the fuel gas supply pipe. The present invention relates to a power generation device configured to supply fuel gas.
【０００９】燃料ガスとは、水素、改質水素、一酸化炭
素等の燃料を含むガスをいう。「酸化ガス」とは、酸素
、過酸化水素等の酸化剤を含むガスをいう。[0009] Fuel gas refers to gas containing fuel such as hydrogen, reformed hydrogen, and carbon monoxide. "Oxidizing gas" refers to a gas containing an oxidizing agent such as oxygen and hydrogen peroxide.
【００１０】0010
【実施例】図１は、本発明の実施例に係る発電装置を示
す断面図である。図３における部材と同一機能部材には
同一符号を付し、その説明は省略することがある。また
、図１においては、有底円筒状のＳＯＦＣ素子５を便宜
上一個だけ図示したが、むろん、こうした有底円筒状の
ＳＯＦＣ素子５を直列及び並列に接続して集合電池を構
成し、この集合電池を発電室１３内に設置することがで
きる。Embodiment FIG. 1 is a sectional view showing a power generation device according to an embodiment of the present invention. Components with the same functions as those in FIG. 3 are given the same reference numerals, and their explanations may be omitted. In addition, in FIG. 1, only one bottomed cylindrical SOFC element 5 is shown for convenience, but it goes without saying that such a bottomed cylindrical SOFC element 5 can be connected in series and parallel to form an assembled battery. A battery can be installed within the power generation room 13.
【００１１】発電室１３を形成する隔壁のうち、有底円
筒状のＳＯＦＣ素子５の開口端側には開口端側隔壁４が
設けられ、この開口端側隔壁４にはＳＯＦＣ素子５の位
置に対応して円形貫通孔４ａが設けられ、円形貫通孔４
ａにＳＯＦＣ素子５の開口端部が挿通されている。ＳＯ
ＦＣ素子５の内側空間１０には酸化ガス供給管２が挿入
される。発電室１３を形成する隔壁のうち、ＳＯＦＣ素
子５の有底部側に設けられた有底部側隔壁１１は、ＳＯ
ＦＣ素子５の長さ方向に対してほぼ垂直をなしている。
本実施例では、ＳＯＦＣ素子５の有底部が有底部側隔壁
１１上に載置されている。開口端側隔壁４によって、発
電室１３と排ガス室３とが区分され、有底部側隔壁１１
によって、発電室１３と燃料ガス室１４とが区分されて
いる。Among the partition walls forming the power generation chamber 13, an open end partition wall 4 is provided on the open end side of the bottomed cylindrical SOFC element 5. Correspondingly, a circular through hole 4a is provided, and a circular through hole 4a is provided.
The open end of the SOFC element 5 is inserted through a. S.O.
The oxidizing gas supply pipe 2 is inserted into the inner space 10 of the FC element 5 . Among the partition walls forming the power generation chamber 13, the bottom part side partition wall 11 provided on the bottom part side of the SOFC element 5 is
It is substantially perpendicular to the length direction of the FC element 5. In this embodiment, the bottomed portion of the SOFC element 5 is placed on the bottomed portion side partition wall 11 . The power generation chamber 13 and the exhaust gas chamber 3 are separated by the open end side partition wall 4, and the bottomed side partition wall 11
The power generation chamber 13 and the fuel gas chamber 14 are separated by.
【００１２】有底部側隔壁１１には所定位置に例えば円
形の供給管取り付け孔１８が形成され、各供給管取り付
け孔１８に燃料ガス供給管１５が挿通され、固定されて
いる。本実施例では、ＳＯＦＣ素子５の長さ方向と、燃
料ガス供給管１５の長さ方向とをほぼ一致させる。各燃
料ガス供給管１５は、一端を封止した円筒形状をなして
おり、多孔質材料によって形成されている。各燃料ガス
供給管１５の開口１５ａ 側は、若干燃料ガス室１４に
突出しており、開口１５ａ が燃料ガス室１４に面して
いる。また、各燃料ガス供給管１５は発電室１３に突出
している。For example, circular supply pipe attachment holes 18 are formed at predetermined positions in the bottomed side partition wall 11, and a fuel gas supply pipe 15 is inserted and fixed into each supply pipe attachment hole 18. In this embodiment, the length direction of the SOFC element 5 and the length direction of the fuel gas supply pipe 15 are made to substantially match. Each fuel gas supply pipe 15 has a cylindrical shape with one end sealed, and is made of a porous material. The opening 15a side of each fuel gas supply pipe 15 slightly protrudes into the fuel gas chamber 14, and the opening 15a faces the fuel gas chamber 14. Further, each fuel gas supply pipe 15 projects into the power generation chamber 13.
【００１３】この発電装置を動作させるときには、酸化
ガス供給管２の内側空間へと矢印Ａのように酸化ガスを
供給する。この酸化ガスは、酸化ガス供給管２の先端に
ある開口から吹き出し、ＳＯＦＣ素子５の有底部に衝突
して流れの向きを変え、内側空間１０内を図１において
上方へと流れ、矢印Ｂのように排ガス室３へと流入する
。When operating this power generator, oxidizing gas is supplied to the inner space of the oxidizing gas supply pipe 2 as indicated by arrow A. This oxidizing gas blows out from the opening at the tip of the oxidizing gas supply pipe 2, collides with the bottomed part of the SOFC element 5, changes the flow direction, and flows upward in the inner space 10 in FIG. 1, as indicated by the arrow B. The gas flows into the exhaust gas chamber 3 like this.
【００１４】また、燃料ガス供給口１２ａ から矢印Ｃ
のように燃料ガスを燃料ガス室１４へと供給する。これ
により燃料ガス室１４内の圧力が上昇し、各開口１５ａ
から矢印Ｆのように燃料ガスが内側空間１５ｂ へと
流入する。そして、各燃料ガス供給管１５が多孔質材料
からなっているので、燃料ガス供給管１５の全面から矢
印Ｇに示すように燃料ガスが発電室１３に流入する。発
電に充分利用され、減損した燃料ガスは、最終的に各Ｓ
ＯＦＣ素子５と開口端側隔壁４との間隙を通り抜け、矢
印Ｅのように排ガス室３に流入し、減損した酸化ガスと
混合される。Further, from the fuel gas supply port 12a to the arrow C
Fuel gas is supplied to the fuel gas chamber 14 as shown in FIG. As a result, the pressure inside the fuel gas chamber 14 increases, and each opening 15a
From there, fuel gas flows into the inner space 15b as indicated by arrow F. Since each fuel gas supply pipe 15 is made of a porous material, fuel gas flows into the power generation chamber 13 from the entire surface of the fuel gas supply pipe 15 as shown by arrow G. The depleted fuel gas, which has been fully utilized for power generation, is eventually transferred to each S.
It passes through the gap between the OFC element 5 and the partition wall 4 on the open end side, flows into the exhaust gas chamber 3 as shown by arrow E, and is mixed with the depleted oxidizing gas.
【００１５】本実施例によれば、多孔質材料からなる燃
料ガス供給管１５の表面から矢印Ｇに示すように燃料ガ
スを供給しているので、ＳＯＦＣ素子５の長さ方向にみ
て新鮮な燃料ガスが比較的均一に供給される。即ち、Ｓ
ＯＦＣ素子５の開口端部に近い側にも、新鮮で減損のな
い燃料ガスを常時供給できる。従って、発電室１３内に
おける燃料濃度の勾配が小さくなり、均一化されるので
、ＳＯＦＣ素子５の長さ方向における温度勾配も小さく
できる。この結果、発電装置を長時間作動させてもＳＯ
ＦＣ素子５にクラック等が発生しにくくなり、また電気
化学的反応のムラも少なくできることからＳＯＦＣ素子
５における発電効率も従来より向上させることができる
。According to this embodiment, since the fuel gas is supplied from the surface of the fuel gas supply pipe 15 made of a porous material as shown by the arrow G, fresh fuel can be seen in the longitudinal direction of the SOFC element 5. Gas is supplied relatively uniformly. That is, S
Fresh, undepleted fuel gas can also be constantly supplied to the side near the open end of the OFC element 5. Therefore, the gradient of fuel concentration within the power generation chamber 13 is reduced and made uniform, so that the temperature gradient in the length direction of the SOFC element 5 can also be reduced. As a result, even if the generator is operated for a long time, the SO
Since cracks and the like are less likely to occur in the FC element 5 and unevenness in electrochemical reactions can be reduced, the power generation efficiency of the SOFC element 5 can also be improved compared to the conventional one.
【００１６】燃料ガス供給管１５は、高温の燃料ガスに
対して安定でなければならない。この点で、燃料ガス供
給管１５を、耐還元金属粉末を焼結してなる多孔質金属
や、耐還元金属粉末とセラミックス粉末の混合物を焼結
してなる多孔質サーメットで形成すると好ましい。ここ
で、セラミックス粉末としては、アルミナやジルコニア
を主成分とするセラミックスの粉末を例示できる。耐還
元金属粉末としては、Ｎｉ−Ｃｒ ， Ｎｉ−Ｆｅ−Ｃ
ｒ，Ｎｉ−Ｆｅ−Ｃｒ−Ａｌ ， Ｃｏ−Ｎｉ−Ｃｒ
， Ｆｅ−Ｃｒ ， Ｆｅ−Ｃｒ−Ａｌ 等の合金の粉
末や、Ｎｉ ， Ｃｏ ， Ｆｅの粉末を例示できる。The fuel gas supply pipe 15 must be stable against high temperature fuel gas. In this respect, it is preferable to form the fuel gas supply pipe 15 with a porous metal formed by sintering reduction-resistant metal powder or a porous cermet formed by sintering a mixture of reduction-resistant metal powder and ceramic powder. Here, as the ceramic powder, a ceramic powder containing alumina or zirconia as a main component can be exemplified. As the reduction-resistant metal powder, Ni-Cr, Ni-Fe-C
r, Ni-Fe-Cr-Al, Co-Ni-Cr
Examples include powders of alloys such as , Fe-Cr, and Fe-Cr-Al, and powders of Ni, Co, and Fe.
【００１７】燃料ガス供給管１５の開気孔率としては、
１０〜９０％とすることが好ましく、３０〜７０％とす
ると更に好ましい。開気孔率が９０％を超えると、燃料
ガス供給管１５の強度が低下し、開気孔率が１０％未満
であると、燃料ガスの透過量が少なくなる。燃料ガス供
給管１５の開気孔率を全体に一様にしてもよいが、長さ
方向にみて開気孔率に一定の勾配又は段階的な勾配を設
け、燃料入口側の気孔率が大きく、上部に向かうに従っ
て気孔率が小さくなるようにし、素子の温度が均一にな
るようにすれば、更に好ましい。The open porosity of the fuel gas supply pipe 15 is as follows:
It is preferably 10 to 90%, and more preferably 30 to 70%. If the open porosity exceeds 90%, the strength of the fuel gas supply pipe 15 will decrease, and if the open porosity is less than 10%, the amount of fuel gas permeation will decrease. Although the open porosity of the fuel gas supply pipe 15 may be made uniform throughout, the open porosity may have a constant gradient or a stepwise gradient in the length direction, so that the porosity on the fuel inlet side is large and the porosity is large on the fuel inlet side. It is more preferable that the porosity decreases as the temperature increases toward , so that the temperature of the element becomes uniform.
【００１８】燃料ガス供給管１５の開気孔率に長さ方向
にみて勾配を設けるには、以下の２つの方法を例示でき
る。
（１） 多孔質金属又は多孔質サーメットからなる燃料
ガス供給管１５を焼成によって製造する際に、燃料ガス
供給管１５の形状をした粉末成形体の一端部を保持し、
この粉末成形体の他端に均等におもりをつけて粉末成形
体を吊り下げる。これにより、粉末成形体の一端部に近
い側には比較的大きな荷重がかかって若干引き延ばされ
、開気孔率が大きくなる。また、粉末成形体の他端部に
近い側にはあまり荷重がかからないので、開気孔率が比
較的小さくなる。
（２） 多孔質金属又は多孔質サーメットからなる管状
の焼結体を作製する。次いで、この焼結体の開気孔中へ
と充填材を含浸させてある程度開気孔を充填し、次いで
焼結体を乾燥又は加熱して充填材を定着させる。この際
、管状の焼結体の各部分における充填材の含浸量を変え
ることで、この焼結体の開気孔率に勾配を設けることが
できる。The following two methods can be used to create a gradient in the open porosity of the fuel gas supply pipe 15 in the longitudinal direction. (1) When manufacturing the fuel gas supply pipe 15 made of porous metal or porous cermet by firing, hold one end of the powder compact in the shape of the fuel gas supply pipe 15,
A weight is evenly attached to the other end of the powder compact and the powder compact is suspended. As a result, a relatively large load is applied to the side near one end of the powder compact, causing it to be slightly stretched, increasing its open porosity. Further, since not much load is applied to the side near the other end of the powder compact, the open porosity becomes relatively small. (2) A tubular sintered body made of porous metal or porous cermet is produced. Next, a filler is impregnated into the open pores of this sintered body to fill the open pores to some extent, and then the sintered body is dried or heated to fix the filler. At this time, by changing the amount of filler impregnated in each part of the tubular sintered body, it is possible to provide a gradient in the open porosity of this sintered body.
【００１９】また、燃料ガス供給管１５の側壁面からの
燃料ガスの透過量を制御するには、以下の方法がある。
即ち、燃料ガス供給管１５を二重構造にする。具体的に
は、まず多孔質金属からなる管状の焼結体を作製する。
この焼結体においては開気孔率を一定とする。次いで、
この焼結体の側周面にスラリーを帯状に複数列互いに間
隔を置いて塗布し、焼結する。この際、帯状に塗布した
スラリーの幅を大きくしたり，スラリーとスラリーとの
間隔を小さくすれば、燃料ガスの透過が抑えられる。逆
に、帯状のスラリーの幅を小さくしたり、スラリー間の
間隔を大きくすれば、燃料ガスの透過が促進される。更
に、スラリー中に含有される耐還元金属粉末、セラミッ
クス粉末の粒径を小さくすれば燃料ガスが透過しにくく
なり、これらの粒径を大きくすれば燃料ガスが透過し易
くなる。この場合、管状の焼結体は内側空間１５ｂ 側
に向けてバックアップ材として用い、スラリーを塗布し
て焼結した側を発電室へ向けることが好ましい。Furthermore, the following method can be used to control the amount of fuel gas permeating from the side wall surface of the fuel gas supply pipe 15. That is, the fuel gas supply pipe 15 has a double structure. Specifically, first, a tubular sintered body made of porous metal is produced. This sintered body has a constant open porosity. Then,
A plurality of strips of slurry are applied to the side peripheral surface of the sintered body at intervals from each other, and the slurry is sintered. At this time, the permeation of fuel gas can be suppressed by increasing the width of the slurry applied in the form of a band or by decreasing the distance between the slurries. Conversely, by reducing the width of the slurry strips or increasing the spacing between the slurry strips, the permeation of fuel gas is promoted. Further, if the particle size of the reduction-resistant metal powder or ceramic powder contained in the slurry is made smaller, it becomes difficult for fuel gas to pass through the slurry, and if these particle sizes are made larger, the fuel gas becomes easier to pass through. In this case, it is preferable that the tubular sintered body is used as a backup material toward the inner space 15b, and the side on which the slurry has been applied and sintered is directed toward the power generation chamber.
【００２０】空気電極７はドーピングされたか、又はド
ーピングされていないＬａＭｎＯ３ ， ＣａＭｎＯ３
， ＬａＮｉＯ３ ， ＬａＣｏＯ３ ， ＬａＣｒ
Ｏ３ 等の導電性ペロブスカイト形酸化物で製造でき、
ストロンチュウムをドーピングしたＬａＭｎＯ３が好ま
しい。固体電解質８は、イットリア安定化ジルコニア、
イットリア部分安定化ジルコニア等で製造するのが好ま
しい。燃料電極９は、一般にはニッケル−ジルコニアサ
ーメット又はコバルト−ジルコニアサーメットが好まし
い。The air electrode 7 is made of doped or undoped LaMnO3, CaMnO3.
, LaNiO3, LaCoO3, LaCr
It can be made from conductive perovskite oxides such as O3,
Strontium-doped LaMnO3 is preferred. The solid electrolyte 8 is yttria-stabilized zirconia,
Preferably, it is made of yttria partially stabilized zirconia or the like. Fuel electrode 9 is generally preferably nickel-zirconia cermet or cobalt-zirconia cermet.
【００２１】図２は本発明の他の実施例に係る発電装置
を示す断面図である。図１に示した部材と同一機能部材
には同一符号を付け、その説明は省略することがある。
本実施例においては、燃料ガス供給管１６を緻密質材料
で形成し、かつ燃料ガス供給管１６の側周壁に複数個の
燃料ガス供給口１７を形成した。そして、発電装置の動
作時に、燃料ガス室１４内へと矢印Ｃのように燃料ガス
を供給すると、開口１６ａから内側空間１６ｂ へと矢
印Ｆのように燃料ガスが流入する。そして、一旦内側空
間１６ｂ に流入した燃料ガスは、内側空間１６ｂ に
おける圧力分布及び燃料ガス供給口１７の大きさや位置
に応じた流速で、矢印Ｇのように各燃料ガス供給口１７
から発電室１３内に流出する。FIG. 2 is a sectional view showing a power generation device according to another embodiment of the present invention. Components with the same functions as those shown in FIG. 1 are given the same reference numerals, and their explanations may be omitted. In this embodiment, the fuel gas supply pipe 16 is made of a dense material, and a plurality of fuel gas supply ports 17 are formed in the side peripheral wall of the fuel gas supply pipe 16. When the power generating apparatus is operated, when fuel gas is supplied into the fuel gas chamber 14 as shown by arrow C, the fuel gas flows from the opening 16a into the inner space 16b as shown by arrow F. Once the fuel gas has flowed into the inner space 16b, the fuel gas flows through each fuel gas supply port 17 as shown by arrow G at a flow rate depending on the pressure distribution in the inner space 16b and the size and position of the fuel gas supply port 17.
It flows out into the power generation chamber 13 from there.
【００２２】本実施例においても、燃料ガス供給管１６
の側壁面から燃料ガス供給口１７を通して燃料ガスを供
給しているので、図１の実施例と同様の効果を奏しうる
。ただ、ＳＯＦＣ素子５の長さ方向にみて燃料濃度をよ
り一層安定に均一にするには、燃料ガス供給口１７の位
置と大きさとを適切に制御しなくてはならない。また、
図１の実施例と図２の実施例とを比較すると、図２の例
でも大きな効果が得られるが、図１の多孔質ガス供給管
の場合は更に大きな効果が得られる。また図１に示す多
孔質ガス供給管は、複数の孔を設けた図２のガス供給管
に比べて、孔開け加工等が必要ないため、製作コストが
一層低い。Also in this embodiment, the fuel gas supply pipe 16
Since the fuel gas is supplied from the side wall surface of the fuel gas through the fuel gas supply port 17, the same effect as the embodiment shown in FIG. 1 can be achieved. However, in order to make the fuel concentration more stable and uniform in the length direction of the SOFC element 5, the position and size of the fuel gas supply port 17 must be appropriately controlled. Also,
Comparing the embodiment shown in FIG. 1 and the embodiment shown in FIG. 2, the example shown in FIG. 2 also provides a great effect, but the porous gas supply pipe shown in FIG. 1 provides an even greater effect. Further, the porous gas supply pipe shown in FIG. 1 requires no drilling or the like, and therefore has a lower manufacturing cost than the gas supply pipe shown in FIG. 2 which has a plurality of holes.
【００２３】燃料ガス供給管１６は、ＳＯＦＣ素子５の
動作時に使用する燃料ガスに対して耐性があり、かつＳ
ＯＦＣ素子の動作温度で安定な耐熱性の金属又はセラミ
ックスで形成する。こうした耐熱性の金属としては、例
えば、Ｎｉ−Ｃｒ ， Ｎｉ−Ｆｅ−Ｃｒ ， Ｎｉ−
Ｆｅ−Ｃｒ−Ａｌ， Ｃｏ−Ｎｉ−Ｃｒ ， Ｆｅ−Ｃ
ｒ ， Ｆｅ−Ｃｒ−Ａｌ 等の各組成の合金がある
。The fuel gas supply pipe 16 is resistant to the fuel gas used during the operation of the SOFC element 5 and is
It is made of a heat-resistant metal or ceramic that is stable at the operating temperature of the OFC element. Examples of such heat-resistant metals include Ni-Cr, Ni-Fe-Cr, Ni-
Fe-Cr-Al, Co-Ni-Cr, Fe-C
There are alloys with various compositions such as r, Fe-Cr-Al, etc.
【００２４】上記の各実施例においては、ＳＯＦＣ素子
５を上下方向に保持した。即ち、ＳＯＦＣ素子５の長さ
方向は鉛直方向であった。しかし、ＳＯＦＣ素子５を水
平方向に保持し、ＳＯＦＣ素子５の長さ方向を水平方向
に一致させて発電装置を作製することもできる。また、
燃料ガス供給管１５，１６の外側輪郭及び内側輪郭の幅
方向の断面形状は、円形の他、正方形、ひし形、長方形
、六角形等としてもよい。ＳＯＦＣ素子５の有底部を除
く外側輪郭及び内側輪郭の幅方向の断面形状も、円形の
他、正方形、ひし形、長方形、六角形等としてもよい。
また、ＳＯＦＣ素子５を直列及び並列に接続してなる集
合電池は、通常断熱隔壁の内側に収容される。この断熱
隔壁は、開口端側隔壁４及び有底部側隔壁１１と直交し
、両者と共に発電室１３を形成しているものである。図
１，図２に示した燃料ガス供給管１５， １６をこの断
熱隔壁に取りつけ、断熱隔壁から発電室１３内へと向っ
て突出させてもよい。また、図１，図２において、有底
部側隔壁１１に更に燃料ガス供給口を設けてもよい。In each of the above embodiments, the SOFC element 5 was held in the vertical direction. That is, the length direction of the SOFC element 5 was the vertical direction. However, it is also possible to manufacture a power generation device by holding the SOFC element 5 in the horizontal direction and making the length direction of the SOFC element 5 coincide with the horizontal direction. Also,
The cross-sectional shapes in the width direction of the outer and inner contours of the fuel gas supply pipes 15 and 16 may be circular, square, diamond, rectangular, hexagonal, or the like. The cross-sectional shape in the width direction of the outer contour and inner contour of the SOFC element 5 excluding the bottomed portion may also be a square, a diamond, a rectangle, a hexagon, etc. in addition to a circle. Further, an assembled battery formed by connecting SOFC elements 5 in series and parallel is usually housed inside a heat insulating partition. This heat insulating partition wall is perpendicular to the open end side partition wall 4 and the bottomed side partition wall 11, and together forms the power generation chamber 13. The fuel gas supply pipes 15 and 16 shown in FIGS. 1 and 2 may be attached to this heat-insulating partition and protrude from the heat-insulating partition into the power generation chamber 13. Further, in FIGS. 1 and 2, a fuel gas supply port may be further provided in the bottomed portion side partition wall 11.
【００２５】更に、図１、図２及び図３に示した各発電
装置を用い、ＳＯＦＣ素子５の長さ方向における温度勾
配を測定した。但し、測定点としては、図２に示したよ
うな測定点ａ，ｂ，ｃ，ｄ，ｅ，ｆ，ｇ，ｈを選択し、
各測定点の間隔はそれぞれ６０ｍｍとした。図１、図３
の発電装置においても同様である。燃料ガスとしては、
水素９６％、水蒸気４％のものを用い、酸化ガスとして
は大気を用いた。ＳＯＦＣ素子の温度を測定するには、
熱電対を用いた。また、図１、図２及び図３に示すＳＯ
ＦＣ素子の一本当りの出力も比較した。結果を下記表１
に示す。図３の発電装置Furthermore, the temperature gradient in the length direction of the SOFC element 5 was measured using each of the power generating apparatuses shown in FIGS. 1, 2, and 3. However, as measurement points, select measurement points a, b, c, d, e, f, g, h as shown in FIG.
The interval between each measurement point was 60 mm. Figure 1, Figure 3
The same applies to the power generation device. As fuel gas,
A gas containing 96% hydrogen and 4% water vapor was used, and air was used as the oxidizing gas. To measure the temperature of the SOFC element,
A thermocouple was used. In addition, the SO shown in FIGS. 1, 2, and 3
The output of each FC element was also compared. The results are shown in Table 1 below.
Shown below. Figure 3 power generation device
【００２６】[0026]
【表１】[Table 1]
【００２７】以上の結果から解るように、図１、図２の
発電装置によれば、測定点ａ〜ｈの間の温度勾配を小さ
くでき、これにより全体の出力を大きくできる。As can be seen from the above results, according to the power generation apparatus shown in FIGS. 1 and 2, the temperature gradient between the measurement points a to h can be reduced, and thereby the overall output can be increased.
【００２８】[0028]
【発明の効果】本発明によれば、発電室に燃料ガス供給
管が突出しており、燃料ガス室から燃料ガス供給管の内
側空間を通して発電室へと燃料ガスを供給するように構
成したので、発電室に突出した燃料ガス供給管から、Ｓ
ＯＦＣ素子の長さ方向にみて新鮮な燃料ガスが比較的均
一に供給される。即ち、ＳＯＦＣ素子の開口端部に近い
側にも、新鮮で減損のない燃料ガスを常時供給できる。
従って、発電室内における燃料濃度の勾配が小さくなり
、均一化されるので、ＳＯＦＣ素子の長さ方向における
温度勾配も小さくできる。この結果、発電装置を長時間
作動させてもＳＯＦＣ素子にクラック等が発生しにくく
なり、また電気化学的反応のムラも少なくできることか
らＳＯＦＣ素子における発電効率も従来より向上させる
ことができる。According to the present invention, the fuel gas supply pipe protrudes into the power generation chamber, and the fuel gas is supplied from the fuel gas chamber to the power generation chamber through the inner space of the fuel gas supply pipe. From the fuel gas supply pipe protruding into the power generation room,
Fresh fuel gas is supplied relatively uniformly along the length of the OFC element. That is, fresh and undepleted fuel gas can be constantly supplied even to the side near the open end of the SOFC element. Therefore, the gradient of fuel concentration within the power generation chamber is reduced and made uniform, so that the temperature gradient in the length direction of the SOFC element can also be reduced. As a result, cracks are less likely to occur in the SOFC element even if the power generation device is operated for a long time, and unevenness in electrochemical reactions can also be reduced, making it possible to improve the power generation efficiency of the SOFC element than before.
【図１】本発明の実施例に係る発電装置を示す要部断面
図である。FIG. 1 is a sectional view of a main part of a power generation device according to an embodiment of the present invention.
【図２】他の実施例に係る発電装置を示す要部断面図で
ある。FIG. 2 is a sectional view of a main part showing a power generation device according to another embodiment.
【図３】従来例に係る発電装置を示す要部断面図である
。FIG. 3 is a sectional view of a main part of a power generation device according to a conventional example.
２ 酸化ガス供給管
３ 排ガス室
４ 開口端側隔壁
４ａ 開口端側隔壁に形成された貫通孔５ ＳＯＦ
Ｃ素子
１０ ＳＯＦＣ素子の内側空間
１１ 有底部側隔壁
１３ 発電室
１４ 燃料ガス室
１５， １６ 燃料ガス供給管
１５ｂ， １６ｂ 燃料ガス供給管の内側空間１７
燃料ガス供給口
Ａ， Ｂ 酸化ガスの流れ2 Oxidizing gas supply pipe 3 Exhaust gas chamber 4 Open end side partition wall 4a Through hole 5 formed in the open end side partition wall SOF
C element 10 Inner space 11 of SOFC element Bottomed side partition 13 Power generation chamber 14 Fuel gas chambers 15, 16 Fuel gas supply pipes 15b, 16b Inner space 17 of fuel gas supply pipe
Fuel gas supply ports A, B Oxidizing gas flow
Claims (1)
が発電室内に設置され、前記素子の開口端側に設けられ
た開口端側隔壁によって前記発電室と排ガス室とが区分
され、この開口端側隔壁に形成された貫通孔に前記素子
の開口端部が挿通され、前記素子の有底部側に設けられ
た有底部側隔壁によって前記発電室と燃料ガス室とが区
分され、前記発電室に燃料ガス供給管が突出しており、
前記素子の内側空間に酸化ガスを供給しかつ前記燃料ガ
ス室から前記燃料ガス供給管の内側空間を通して前記発
電室へと燃料ガスを供給するように構成された発電装置
。Claim 1: A cylindrical solid oxide fuel cell element with a bottom is installed in a power generation chamber, and the power generation chamber and the exhaust gas chamber are separated by an open end partition wall provided on the open end side of the element. The open end of the element is inserted into a through hole formed in the open end side partition wall, and the power generation chamber and the fuel gas chamber are separated by the bottom side partition wall provided on the bottom side of the element. A fuel gas supply pipe protrudes into the chamber,
A power generation device configured to supply oxidizing gas to an inner space of the element and to supply fuel gas from the fuel gas chamber to the power generation chamber through the inner space of the fuel gas supply pipe.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3080635A JP2634963B2 (en) | 1991-03-20 | 1991-03-20 | Power generator |
| US07/852,540 US5336569A (en) | 1991-03-20 | 1992-03-17 | Power generating equipment |
| EP92302379A EP0505184B1 (en) | 1991-03-20 | 1992-03-19 | Power generating equipment comprising solid oxide fuel cells |
| DE69220400T DE69220400T2 (en) | 1991-03-20 | 1992-03-19 | Power generating device containing solid oxide fuel cells |
| CA002063482A CA2063482C (en) | 1991-03-20 | 1992-03-19 | Power generating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3080635A JP2634963B2 (en) | 1991-03-20 | 1991-03-20 | Power generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04292867A true JPH04292867A (en) | 1992-10-16 |
| JP2634963B2 JP2634963B2 (en) | 1997-07-30 |
Family
ID=13723833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3080635A Expired - Lifetime JP2634963B2 (en) | 1991-03-20 | 1991-03-20 | Power generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2634963B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61145454A (en) * | 1984-12-19 | 1986-07-03 | Matsushita Electric Ind Co Ltd | Apparatus for measuring and inspecting ultrasonic probe |
| JPH034454A (en) * | 1989-05-31 | 1991-01-10 | Fujikura Ltd | Solid electrolyte type fuel cell module |
-
1991
- 1991-03-20 JP JP3080635A patent/JP2634963B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61145454A (en) * | 1984-12-19 | 1986-07-03 | Matsushita Electric Ind Co Ltd | Apparatus for measuring and inspecting ultrasonic probe |
| JPH034454A (en) * | 1989-05-31 | 1991-01-10 | Fujikura Ltd | Solid electrolyte type fuel cell module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2634963B2 (en) | 1997-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3731650B2 (en) | Fuel cell | |
| US5336569A (en) | Power generating equipment | |
| JP5215979B2 (en) | Structure of solid oxide fuel cell | |
| WO2003099710A1 (en) | Direct hydrocarbon reforming in protonic ceramic fuel cells by electrolyte steam permeation | |
| JPH11162492A (en) | Start/stop method for solid electrolyte fuel cell | |
| JP2018087501A (en) | Control device of hybrid power system, hybrid power system, control method of hybrid power system, and control program of hybrid power system | |
| US9130219B1 (en) | Method of making redox materials for solid oxide redox flow battery | |
| JP2007523441A (en) | Hydrogen diffusion electrode for protic ceramic fuel cells | |
| JP2698482B2 (en) | Power generator | |
| US8361671B2 (en) | Solid electrolyte fuel-cell device | |
| US7470480B2 (en) | Solid electrolyte fuel-cell device | |
| JP2018088324A (en) | Control device for hybrid power generation system, hybrid power generation system, control method for hybrid power generation system and control program for hybrid power generation system | |
| US20070026285A1 (en) | Proton conducting solid oxide electrolytes, electrochemical cells utilizing the proton conducting materials and methods of making the same | |
| KR20220034198A (en) | Fuel cell system and its control method | |
| JPH03280359A (en) | Fuel cell with solid electrolyte | |
| JP6239229B2 (en) | Fuel cell system and fuel cell operating method | |
| JPH04292866A (en) | Generating set | |
| JP2597730B2 (en) | Method for producing bottomed porous support tube for solid oxide fuel cell | |
| JPH04292867A (en) | Power generating set | |
| JP2008251277A (en) | Single chamber type solid oxide fuel cell system | |
| JP2007335314A (en) | Single room type solid oxide fuel cell, single room type solid oxide fuel cell system, and operation method of this single room type solid oxide fuel cell | |
| JPH03238760A (en) | Fuel cell of solid electrolyte type | |
| JP3929136B2 (en) | Electrochemical cell and electrochemical device | |
| JPH0758618B2 (en) | Solid oxide fuel cell | |
| JP2770541B2 (en) | Solid electrolyte fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090425 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100425 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100425 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110425 Year of fee payment: 14 |
|
| EXPY | Cancellation because of completion of term |