JPH0666787A - Measuring method for residual amount of hydrogen in hydrogen storage alloy container - Google Patents
Measuring method for residual amount of hydrogen in hydrogen storage alloy containerInfo
- Publication number
- JPH0666787A JPH0666787A JP4240110A JP24011092A JPH0666787A JP H0666787 A JPH0666787 A JP H0666787A JP 4240110 A JP4240110 A JP 4240110A JP 24011092 A JP24011092 A JP 24011092A JP H0666787 A JPH0666787 A JP H0666787A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen
- amount
- strain
- storage alloy
- residual
- 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
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/065—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by dissolution of metals or alloys; by dehydriding metallic substances
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Fuel Cell (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水素吸蔵合金を利用し
た水素吸蔵合金容器内の残存水素量測定方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring the amount of residual hydrogen in a hydrogen storage alloy container using a hydrogen storage alloy.
【０００２】[0002]
【従来の技術】水素吸蔵合金を用いた水素吸蔵合金容器
では、残存水素量の測定が実用上不可欠である。従来技
術として、水素解離圧力の異なる２種類以上の水素吸蔵
合金を混合し、貯蔵容器内容の圧力変化から残存水素量
を測定を行う方法が開示されている。2. Description of the Related Art In a hydrogen storage alloy container using a hydrogen storage alloy, it is practically essential to measure the amount of residual hydrogen. As a conventional technique, a method is disclosed in which two or more kinds of hydrogen storage alloys having different hydrogen dissociation pressures are mixed and the amount of residual hydrogen is measured from the pressure change of the contents of the storage container.
【０００３】例えば、特開昭５９ー７８９０２号公報で
は、容器内に圧力Ｐ１で水素を解離する第１の金属水素
化物を主成分とし、圧力Ｐ１よりも低い圧力Ｐ２で水素
を解離する第２の金属水素化物を従成分とする金属水素
化物の混合物が充填されて、第１の金属水素化物から水
素が実質的に放出しつくされた後に、第２の金属水素化
物から水素が放出されると共に、圧力Ｐ１から圧力Ｐ２
の圧力変化を測定することにより残存水素量を測定する
ものが開示されている。For example, in JP-A-59-78902, a first metal hydride that dissociates hydrogen at a pressure P1 as a main component is contained in a container, and a second metal dissociates at a pressure P2 lower than the pressure P1. The hydrogen is released from the second metal hydride after the hydrogen has been substantially released from the first metal hydride by being filled with the mixture of the metal hydride containing the metal hydride as a subcomponent. Together with pressure P1 to pressure P2
It is disclosed that the amount of residual hydrogen is measured by measuring the change in pressure.
【０００４】また、特開昭５９ー１９７５４６号公報で
は金属水素化物の水素吸蔵量と平衡圧力との関係が直線
性を持つように数種類の金属水素化物の混合物を用いて
圧力の計測から水素貯蔵量を測定するものが開示されて
いる。Further, in Japanese Patent Laid-Open No. 59-197546, the pressure is measured and the hydrogen is stored by using a mixture of several kinds of metal hydride so that the relationship between the hydrogen storage amount of the metal hydride and the equilibrium pressure has a linear relationship. Those that measure quantity are disclosed.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、従来技
術の水素解離圧力の異なる２種類以上の水素吸蔵合金を
混合し、貯蔵容器内の圧力変化から残存水素量を測定を
行う方法よれば、水素放出停止時の温度と圧力の安定し
た平衡状態では残存水素量の測定ができるが、水素放出
中では、水素放出速度に応じて水素吸蔵合金の水素解離
吸熱反応の変化が生じて水素吸蔵合金の温度や圧力が不
確定に変動するから、圧力の測定では正確な残存水素量
の測定が困難である。However, according to the prior art method of mixing two or more kinds of hydrogen storage alloys having different hydrogen dissociation pressures and measuring the amount of residual hydrogen from the pressure change in the storage container, hydrogen is released. The amount of residual hydrogen can be measured in a stable equilibrium state of temperature and pressure at the time of stop, but during hydrogen release, the temperature of the hydrogen storage alloy changes due to the change in the hydrogen dissociation endothermic reaction of the hydrogen storage alloy depending on the hydrogen release rate. Since the pressure and the pressure fluctuate indefinitely, it is difficult to measure the residual hydrogen amount accurately by measuring the pressure.
【０００６】そこで、本発明は水素放出中でも正確な残
存水素量の測定が可能な水素吸蔵合金容器内の残存水素
量測定方法を提供することを目的とする。Therefore, it is an object of the present invention to provide a method for measuring the amount of residual hydrogen in a hydrogen storage alloy container, which enables accurate measurement of the amount of residual hydrogen even during hydrogen release.
【０００７】[0007]
【課題を解決するための手段】本発明は、水素吸蔵合金
容器の壁に歪ゲージを付着し、予めこの水素吸蔵合金か
ら水素を少しずつ放出することによって順次残存水素量
を算出すると共に、このときの歪量を順次測定して歪量
と残存水素量との関係を設定し、残存水素量の測定時に
は前記歪ゲージで測定した歪量から前記設定された前記
歪量と残存水素量との関係に基づいて残存水素量を測定
するようにしたものである。According to the present invention, a strain gauge is attached to the wall of a hydrogen storage alloy container and the amount of residual hydrogen is sequentially calculated by gradually releasing hydrogen from the hydrogen storage alloy little by little in advance. When the strain amount is sequentially measured and the relationship between the strain amount and the residual hydrogen amount is set, when measuring the residual hydrogen amount, the strain amount and the residual hydrogen amount are set from the strain amount measured by the strain gauge. The residual hydrogen amount is measured based on the relationship.
【０００８】[0008]
【作用】水素吸蔵合金は、水素吸収量（残存水素量）に
応じて膨脹、収縮を生ずる。即ち、水素吸収量が多い
程、膨脹の度合は大きい。しかも、この膨脹、収縮の度
合は温度の影響を受けない。従って、この膨脹、収縮に
よる容器壁の歪により水素吸蔵合金容器内の残存水素量
を簡便に的確に測定でき、しかも、水素供給中でも安定
して測定できる。The hydrogen storage alloy expands and contracts according to the amount of absorbed hydrogen (the amount of residual hydrogen). That is, the greater the amount of absorbed hydrogen, the greater the degree of expansion. Moreover, the degree of expansion and contraction is not affected by temperature. Therefore, the amount of residual hydrogen in the hydrogen storage alloy container can be easily and accurately measured by the strain of the container wall due to the expansion and contraction, and can be stably measured even during hydrogen supply.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面を参照して説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１は、本発明の第１実施例を示す構成図
である。図中、１は水素吸蔵合金２が充填された容器、
３は容器１に形成される水素導入排出部、４は歪ゲージ
Ｇの変化量を検出する歪変化量検出手段としてのブリッ
ジ回路、５はブリッジ回路４からの歪の変化量を入力
し、この歪の変化量と予め設定された歪の変化量に対応
する残存水素量との関係から残存水素量を測定する残存
水素量測定手段である。ここで、測定する残存水素量
は、水素吸蔵合金２に吸蔵された水素と容器１内の水素
を含むものとする。FIG. 1 is a block diagram showing a first embodiment of the present invention. In the figure, 1 is a container filled with hydrogen storage alloy 2,
Reference numeral 3 is a hydrogen introducing / exhausting portion formed in the container 1, 4 is a bridge circuit as a strain change amount detecting means for detecting the change amount of the strain gauge G, and 5 is the strain change amount from the bridge circuit 4, It is a residual hydrogen amount measuring means for measuring the residual hydrogen amount from the relationship between the amount of change in strain and the amount of residual hydrogen corresponding to a preset amount of change in strain. Here, the residual hydrogen amount to be measured is assumed to include the hydrogen stored in the hydrogen storage alloy 2 and the hydrogen in the container 1.
【００１１】容器１は、円筒状のステンレススチール製
で、この容器１の円筒の一端に水素導入排出部３が形成
され、図示省略する水素バルブを介して水素供給手段に
連絡している。容器１の内部には、一例として、合金組
成ＬａＮｉ5の水素吸蔵合金２が約５０％の気孔率で充
填されており、容器１へ水素導入排出部３より図示省略
する水素供給手段から水素ガスが供給され、図２に示す
ように２５℃で、圧力１０ａｔｍの水素吸収状態（１．
５ｗｔ％）としている。容器１の外周壁１ａには、歪抵
抗感応素子として歪ゲージＧが貼付けられ、リード線Ｇ
ａ，Ｇｂが付いている。なお、この歪ゲージＧは金属抵
抗素子を線引した箔状のものを用いている。The container 1 is made of a cylindrical stainless steel, and a hydrogen introducing / discharging portion 3 is formed at one end of the cylinder of the container 1 and is connected to a hydrogen supply means via a hydrogen valve (not shown). As an example, the inside of the container 1 is filled with a hydrogen storage alloy 2 having an alloy composition LaNi 5 with a porosity of about 50%. 2 is supplied, and at a temperature of 25 ° C., a hydrogen absorption state (1.
5 wt%). On the outer peripheral wall 1a of the container 1, a strain gauge G is attached as a strain resistance sensitive element, and a lead wire G
a and Gb are attached. The strain gauge G is a foil-shaped one obtained by drawing a metal resistance element.
【００１２】歪ゲージＧは、リード線Ｇａ，Ｇｂにより
抵抗ＲＧとしてホイストンブリッジ回路４の一辺に接続
されている。すなわち、この抵抗ＲＧをブリッジの一
辺、他の三辺を各々Ｒ１，Ｒ２，Ｒ３とするブリッジ回
路４が形成され、ブリッジ回路のＲ２とＲ３またはＲＧ
とＲ１の両端４ａ，４ｂには一定の電圧Ｅが印加され、
ブリッジ回路４の他の両端４ｃ，４ｄからブリッジ回路
４の電圧出力ｅが取り出され、この電圧出力ｅが入力す
るように残存水素量測定手段５がブリッジ回路４に接続
されている。The strain gauge G is connected to one side of the Hoiston bridge circuit 4 as a resistance RG by lead wires Ga and Gb. That is, a bridge circuit 4 is formed in which the resistor RG is one side of the bridge and the other three sides are R1, R2, and R3, respectively, and the bridge circuit R2 and R3 or RG is formed.
And a constant voltage E is applied to both ends 4a and 4b of R1,
The voltage output e of the bridge circuit 4 is taken out from the other ends 4c and 4d of the bridge circuit 4, and the residual hydrogen amount measuring means 5 is connected to the bridge circuit 4 so that the voltage output e is input.
【００１３】ところで、歪ゲージの抵抗ＲＧは次の式
（１）で示される。The resistance RG of the strain gauge is expressed by the following equation (1).
【００１４】[0014]
【数１】 [Equation 1]
【００１５】また、ブリッジ回路４の電圧出力ｅは次の
式（２）で示される。The voltage output e of the bridge circuit 4 is expressed by the following equation (2).
【００１６】[0016]
【数２】 [Equation 2]
【００１７】上記式（２）において次の式（３）の条件
とすれば、電圧出力ｅは次の式（４）で示される。Under the condition of the following expression (3) in the above expression (2), the voltage output e is expressed by the following expression (4).
【００１８】[0018]
【数３】 [Equation 3]
【００１９】[0019]
【数４】 [Equation 4]
【００２０】この結果、上記の式（４）から歪εの変化
量に比例した電圧出力ｅが残存水素量測定手段５に入力
される。As a result, the voltage output e proportional to the change amount of the strain ε is input to the residual hydrogen amount measuring means 5 from the above equation (4).
【００２１】次に、残存水素量測定手段５では、予め実
験により水素導入排出部３から順次水素を放出して残存
水素量を測定し、このときの歪の変化量を順次測定し、
歪の変化量と残存水素量との関係を設定しておく。すな
わち、例えば、上記した図２の２５℃で、かつ、圧力１
０ａｔｍの状態で水素導入排出部３から図示省略する水
素バルブを開いて図示省略する水素流量計で放出水素の
測定から残存水素量を求め、対応する電圧出力ｅから歪
εを求めて図３に示す如く残存水素量ｃと歪ε／ε0と
の関係を残存水素量測定手段５に設定する。Next, the residual hydrogen amount measuring means 5 measures the residual hydrogen amount by sequentially releasing hydrogen from the hydrogen introducing / exhausting part 3 beforehand by an experiment, and sequentially measuring the amount of change in strain at this time,
The relationship between the amount of change in strain and the amount of residual hydrogen is set. That is, for example, at 25 ° C. in FIG.
At 0 atm, the hydrogen valve (not shown) is opened from the hydrogen introducing / exhausting unit 3, and the amount of residual hydrogen is obtained by measuring the amount of released hydrogen with a hydrogen flow meter (not shown), and the strain ε is obtained from the corresponding voltage output e. As shown, the relationship between the residual hydrogen amount c and the strain ε / ε 0 is set in the residual hydrogen amount measuring means 5.
【００２２】ここで、残存水素量ｃは、図２に示す完全
な水素吸収状態、１．５ｗｔ％を１００％として、これ
に対応して残存水素量の比を％で示し、図２においてε
0完全な水素放出状態、つまり、１ａｔｍのときの歪を
示している。この図３によって歪の比ε／ε0は残存水
素量ｃに対して単調に比例して増加している。従って、
歪の比ε／ε0を求めれば、残存水素量ｃを求められ
る。Here, the residual hydrogen amount c is 100% when 1.5 wt% is the perfect hydrogen absorption state shown in FIG. 2, and correspondingly, the ratio of the residual hydrogen amount is shown in%.
0 shows the complete hydrogen release state, that is, the strain at 1 atm. As shown in FIG. 3, the strain ratio ε / ε 0 increases monotonically in proportion to the residual hydrogen amount c. Therefore,
If the strain ratio ε / ε 0 is obtained, the residual hydrogen amount c can be obtained.
【００２３】ところで、上記式（１）では歪ε0のとき
の電圧出力ｅ＝ｅ0とすればｅ／ｅ0の比はε／ε0の比
に対応するから残存水素量測定手段５ではｅ／ｅ0の比
と図３に示す如くの歪の変化量に対応する残存水素量と
の関係とから残存水素量を測定する時にそのときの残存
水素量が測定される。残存水素量では、必要に応じて残
存水素量をモニタするため表示と印字、さらに、警報出
力する手段を設けるようにする。By the way, in the above equation (1), if the voltage output e = e 0 when the strain is ε 0 , the ratio of e / e 0 corresponds to the ratio of ε / ε 0. When measuring the residual hydrogen amount from the relationship between the ratio of e / e 0 and the residual hydrogen amount corresponding to the amount of change in strain as shown in FIG. 3, the residual hydrogen amount at that time is measured. As for the residual hydrogen amount, a display and a print for monitoring the residual hydrogen amount and a means for outputting an alarm are provided as needed.
【００２４】なお、図３中Ｓ１の点で水素の放出を停止
しても歪の比ε／ε0の値は変化しなかった。すなわ
ち、本実施例では、水素吸蔵合金２が温度変化の影響を
受けず、水素の供給中でも停止中でも正確な残存水素量
の測定がされることが判明した。The value of the strain ratio ε / ε 0 did not change even if the release of hydrogen was stopped at the point S1 in FIG. That is, in this example, it was found that the hydrogen storage alloy 2 was not affected by the temperature change, and the amount of residual hydrogen was accurately measured during the supply of hydrogen and the stop of hydrogen.
【００２５】このように、本実施例によれば、容器１の
外周壁１ａに歪ゲージＧを貼付け残存水素量に応じた水
素吸蔵合金２の体積の変化に伴う、容器１の壁の応力、
歪の変化から残存水素量を簡便に、しかも、正確に測定
できる。その上、水素供給中変化状態でも的確に残存水
素量の測定ができる。As described above, according to this embodiment, the strain gauge G is attached to the outer peripheral wall 1a of the container 1, and the stress of the wall of the container 1 due to the change in the volume of the hydrogen storage alloy 2 according to the amount of residual hydrogen,
The amount of residual hydrogen can be easily and accurately measured from the change in strain. In addition, the amount of residual hydrogen can be accurately measured even when the supply of hydrogen changes.
【００２６】次に、本発明の第２実施例を図４を参照し
て説明する。Next, a second embodiment of the present invention will be described with reference to FIG.
【００２７】図４が図１と異なる点は。３個の歪ゲージ
Ｇ１，Ｇ２，Ｇ３を容器１の外周壁１ａに貼付けて、各
歪ゲージＧ１，Ｇ２，Ｇ３のリード線を直列に接続して
両端のリード線Ｇａ，Ｇｂにより抵抗ＲＧとしてブリッ
ジ回路４の一辺として構成している点である。What is different from FIG. 1 in FIG. 4? The three strain gauges G1, G2, G3 are attached to the outer peripheral wall 1a of the container 1, the lead wires of the strain gauges G1, G2, G3 are connected in series, and the lead wires Ga, Gb at both ends are connected to form a bridge as a resistance RG. The point is that it is configured as one side of the circuit 4.
【００２８】上記構成で、第１実施例と同様に予め実験
によって残存水素量ｃと歪の比ε／ε0との関係を求め
た。その結果、第４図に示すように、残存水素量ｃと歪
の比ε／ε0の関係はほぼリニヤの関係となった。ま
た、第１実施例と同様にＳ２の点で水素放出を停止して
も歪の比ε／ε0の値は変化しなかった。残存水素量測
定手段５では、ホイストンブリッジ回路４の電圧出力の
比ｅ／ｅ0、つまり、図５に示す如くのε／ε0の比と残
存水素量ｃとの関係を予め設定しておけば、歪の変化量
から残存水素量ｃが測定される。With the above structure, the relationship between the residual hydrogen amount c and the strain ratio ε / ε 0 was previously obtained by an experiment as in the first embodiment. As a result, as shown in FIG. 4, the relationship between the residual hydrogen amount c and the strain ratio ε / ε 0 was almost linear. Further, similarly to the first embodiment, the value of the strain ratio ε / ε 0 did not change even if the hydrogen release was stopped at the point of S2. In the residual hydrogen amount measuring means 5, the relationship between the voltage output ratio e / e 0 of the Whiston bridge circuit 4, that is, the ratio of ε / ε 0 as shown in FIG. 5 and the residual hydrogen amount c is set in advance. In other words, the residual hydrogen amount c can be measured from the amount of change in strain.
【００２９】このように、電圧出力ｅと残存水素量ｃと
はリニヤに比例するから電圧表示計等によりモニタする
ことも容易で、機器構成の簡素化、低コスト化で実施で
きる。As described above, since the voltage output e and the residual hydrogen amount c are proportional to the linear range, it is easy to monitor them with a voltage indicator or the like, and the equipment structure can be simplified and the cost can be reduced.
【００３０】なお、歪ゲージを貼付ける場所は、容器外
壁、内壁のいずれであっても、水素吸蔵合金の水素吸放
出に伴う体積変化による応力を受ける部位であれば同様
の効果が得られ、複数の歪ゲージを貼付ける場合では、
直列に接続に限らず並列の接続でもよい。また、本発明
の水素吸蔵合金容器を燃料電池の水素供給源として使用
すれば、燃料としての残存水素量を的確に知ることがで
き、容器の交換を円滑に行える。また、水素吸蔵合金は
前記に示した組成ＬａＮｉ5に限られず他の組成の水素
吸蔵合金にも適用することができる。It should be noted that the same effect can be obtained as long as the strain gauge is attached to either the outer wall or the inner wall of the container as long as it is stressed by the volume change accompanying the hydrogen absorption / release of the hydrogen storage alloy. When attaching multiple strain gauges,
The connection is not limited to serial connection, but parallel connection may be used. Further, when the hydrogen storage alloy container of the present invention is used as a hydrogen supply source for a fuel cell, the amount of residual hydrogen as fuel can be accurately known and the container can be replaced smoothly. Further, the hydrogen storage alloy is not limited to the composition LaNi 5 shown above, but can be applied to hydrogen storage alloys having other compositions.
【００３１】[0031]
【発明の効果】以上説明したように本発明によれば、容
器の壁に歪ゲージを付着し、歪の変化量から残存水素量
を測定するから簡便に、しかも、正確に測定できる。そ
の上、水素供給中、停止中を問わず残存水素量の測定が
可能である。従って、水素貯蔵手段として水素吸蔵合金
容器の実用化に寄与することができる。As described above, according to the present invention, a strain gauge is attached to the wall of a container and the amount of residual hydrogen is measured from the amount of change in strain, so that the amount of hydrogen remaining can be measured easily and accurately. In addition, the amount of residual hydrogen can be measured regardless of whether hydrogen is being supplied or stopped. Therefore, it can contribute to the practical application of the hydrogen storage alloy container as the hydrogen storage means.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の第１実施例を示す構成図。FIG. 1 is a configuration diagram showing a first embodiment of the present invention.
【図２】図１の第１実施例に用いる水素吸蔵合金の平衡
圧力と残存水素量との関係を示す特性図。FIG. 2 is a characteristic diagram showing the relationship between the equilibrium pressure and the amount of residual hydrogen of the hydrogen storage alloy used in the first embodiment of FIG.
【図３】図１の第１実施例に用いる残存水素量と歪の比
との関係を示す特性図。FIG. 3 is a characteristic diagram showing the relationship between the residual hydrogen amount and the strain ratio used in the first embodiment of FIG.
【図４】本発明の第２実施例を示す構成図。FIG. 4 is a configuration diagram showing a second embodiment of the present invention.
【図５】図４の第２実施例に用いる残存水素量と歪の比
との関係を示す特性図。5 is a characteristic diagram showing the relationship between the amount of residual hydrogen and the strain ratio used in the second embodiment of FIG.
１ 容器 ２ 水素吸蔵合金 ３ 水素導入排出部 ４ ブリッジ回路 ５ 残存水素量測定手段 1 container 2 hydrogen storage alloy 3 hydrogen introduction / exhaust section 4 bridge circuit 5 residual hydrogen amount measuring means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 米津 育郎 大阪府守口市京阪本通２丁目18番地 三洋 電機株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ikuro Yonezu 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.
Claims (3)
し、予めこの水素吸蔵合金から水素を少しずつ放出する
ことによって順次残存水素量を算出すると共に、このと
きの歪量を順次測定して歪量と残存水素量との関係を設
定し、残存水素量の測定時には前記歪ゲージで測定した
歪量から前記設定された前記歪量と残存水素量との関係
に基づいて残存水素量を測定することを特徴とする水素
吸蔵合金容器内の残存水素量測定方法。1. A strain gauge is attached to the wall of a hydrogen storage alloy container, and the amount of residual hydrogen is sequentially calculated by preliminarily releasing hydrogen from the hydrogen storage alloy little by little, and the strain amount at this time is sequentially measured. The relationship between the strain amount and the residual hydrogen amount is set, and when measuring the residual hydrogen amount, the residual hydrogen amount is determined based on the relationship between the strain amount and the residual hydrogen amount set from the strain amount measured by the strain gauge. A method for measuring the amount of residual hydrogen in a hydrogen storage alloy container, which comprises measuring.
歪ゲージを直列または並列に接続して残存水素量を測定
することを特徴とする請求項１記載の水素吸蔵合金容器
内の残存水素量測定方法。2. The residual hydrogen amount in the hydrogen storage alloy container according to claim 1, wherein the strain gauges are plural and the strain gauges are connected in series or in parallel to measure the residual hydrogen amount. Measuring method.
前記水素吸蔵合金容器を用いたことを特徴とする請求項
１記載または請求項２記載の水素吸蔵合金容器内の残存
水素量測定方法。3. The method for measuring the amount of residual hydrogen in the hydrogen storage alloy container according to claim 1, wherein the hydrogen storage alloy container is used as a hydrogen supply source to a fuel electrode of a fuel cell. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24011092A JP3203062B2 (en) | 1992-08-18 | 1992-08-18 | Method for measuring residual hydrogen content in hydrogen storage alloy container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24011092A JP3203062B2 (en) | 1992-08-18 | 1992-08-18 | Method for measuring residual hydrogen content in hydrogen storage alloy container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0666787A true JPH0666787A (en) | 1994-03-11 |
| JP3203062B2 JP3203062B2 (en) | 2001-08-27 |
Family
ID=17054644
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24011092A Expired - Fee Related JP3203062B2 (en) | 1992-08-18 | 1992-08-18 | Method for measuring residual hydrogen content in hydrogen storage alloy container |
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| Country | Link |
|---|---|
| JP (1) | JP3203062B2 (en) |
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