TWI281763B - Method for calculating the fuel concentration used in a direct methanol fuel cell - Google Patents

Method for calculating the fuel concentration used in a direct methanol fuel cell Download PDF

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TWI281763B
TWI281763B TW094116661A TW94116661A TWI281763B TW I281763 B TWI281763 B TW I281763B TW 094116661 A TW094116661 A TW 094116661A TW 94116661 A TW94116661 A TW 94116661A TW I281763 B TWI281763 B TW I281763B
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fuel
concentration
calculating
direct
fuel cell
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TW094116661A
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Chinese (zh)
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TW200642154A (en
Inventor
Yu-Ren Chiou
Hsin-Chung Lien
Wen-Sen Shie
Feng-Yi Deng
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Antig Tech Co Ltd
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Priority to TW094116661A priority Critical patent/TWI281763B/en
Priority to JP2006138792A priority patent/JP2006332050A/en
Priority to DE102006024170A priority patent/DE102006024170A1/en
Publication of TW200642154A publication Critical patent/TW200642154A/en
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Publication of TWI281763B publication Critical patent/TWI281763B/en

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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
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
    • H01M8/1011—Direct alcohol fuel cells [DAFC], e.g. direct methanol fuel cells [DMFC]
    • 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04186—Arrangements for control of reactant parameters, e.g. pressure or concentration of liquid-charged or electrolyte-charged reactants
    • H01M8/04194—Concentration measuring cells
    • 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • H01M8/04365—Temperature; Ambient temperature of other components of a fuel cell or fuel cell stacks
    • 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0444—Concentration; Density
    • H01M8/04447—Concentration; Density of anode reactants at the inlet or inside the fuel cell
    • 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04537—Electric variables
    • H01M8/04544—Voltage
    • H01M8/04559—Voltage of fuel cell stacks
    • 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04537—Electric variables
    • H01M8/04574—Current
    • H01M8/04589—Current of fuel cell stacks
    • 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)
  • Fuel Cell (AREA)

Abstract

This invention provides a method for calculating the fuel concentration used in a direct methanol fuel cell (DMFC). The method comprises the steps of: providing a DMFC; providing plural and different fuels with known concentrations to the DMFC, and making the DMFC produce electrochemical reaction to generate electricity under the condition of each different known fuel concentration; respectively measuring and recording a plurality of physical parameters corresponding to different kinds of the preset fuel concentrations that are individually reacted in the DMFC, and selecting three of the recorded physical parameters to construct a relative three-dimensional measured space; performing interpolation according to the three-dimensional measured space; and when fuel with unknown concentration is applied in the DMFC to produce an electrochemical reaction and generate electricity, measuring at least three physical parameters and performing interpolation to determine the present fuel concentration in the DMFC.

Description

1281763 t i 九、發明說明： 【發明所屬之技術領域】 本發明係關於一濃度計，其特別係關於一種用於直接曱 醇燃料電池的計算燃料濃度方法。 【先前技術】 用來量測直接甲醇燃料電池的燃料濃度所採行的習知手 • & ’乃僅係揭露到利用濃度感測器作為量測燃料濃度的技藝 程度而已。_此習知手段可崎決簡濃度之量測問題， 但是對於輕、薄、短、小的直接甲醇燃料電池而言，濃度感 測器的II積規模亦必須緊密地配合改變，否則愈來愈微型化 的直接甲_㈣池，將無法在細部來設置濃度感測器。 本發明發明人有鏗於上述習知手段的缺失，乃座思發明 纟月出種用於直接尹醇燃料電池的計算燃料濃度方法， 本!X月方村以比偷為—種虛擬式燃料濃度感測器，用來量 測燃料的濃度。 【發明内容】 曰本I月的主要目的係不用藉助於實體的濃度感測器，來 提供一種計算燃料濃度方法，能_來量_行電化學反應 中的直接甲醇燃料電池，其當時所使用的燃料其漠度為何。 勺另目的係取代實體的濃度感測器，而來提供 1281763 * 1 一種計算燃料濃度方法，能夠用來量測進行電化學反應中的 直接甲醇燃料電池，其當時所使用的燃料其濃度為何。 為達成本發明上述目的，本發明提供一種用於直接曱醇 •…料甩池的计异燃料濃度方法，乃包括下列步驟··提供直接 甲醇燃料電池的步驟。將至少―個以上且不同的已知濃度的 燃料分別提供給直接帽纏電池，並使得直接f醇燃料電 I 池为別在各個不同已知濃度燃料的條件下，發生電化學反應 而產生電力的步驟。分別量測且記錄在各項不同已知濃度燃 料的I件下’當時運作巾的直接曱賴料電池的複數個物理 數並且選擇該些物理量參數的其中三項，來建立對應 勺、、隹畺測空間的步驟。依據該三維量測空間來建立插值計 异手段的步驟，其中插值計算手段制於計算出位於直接甲 醇;1、;料包池的燃料的未知濃度。當未知濃度之燃料提供給直 接曱燃料電池而發生電化學反應且產生電力，量測此時的 至少該三項物理量參數的步驟，並利用插值計算手段，來計 异付到位於直接曱醇燃料電池的燃料的目前濃度的步驟。 為使熟悉該項技藝人士瞭解本發明之目的、特徵 及功效，茲藉由下述具體實施例，並配合所附之圖 式，對本發明詳加說明，說明如後： 【實施方式】 1281763 第圖减不本發明用於直接甲醇燃料電池系統的計算燃 料濃度方法的流賴。本發明輯算燃料濃度方法ig係用來 計算出當時位於直接甲醇燃料電池2〇的燃料的濃度，而完全 不必使用到實體的濃度感測器。本發明的計算燃料濃度方法ι〇 包括步驟_)至步驟⑽），分別朗如下时。步驟⑽） 係提供直接甲醇燃料電池系統2〇。步驟⑽)係將至少一個以 上且不同的已知濃度的燃料，分別提供給直接甲醇燃料電池 20，並使得直接甲醇燃料電池2〇分別在各個不同已知濃度燃 料的1W件下，發生電化學反應而產生電力。在步驟⑽)與步驟 (103)中’本發齡別地將各種已知濃度的轉供應至直接甲醇 燃料電池20，並使得直接甲醇燃料電池2〇分別在各種已知濃 度燃料下發生f化學反應。為了讀量酬本發日骑需要的各 項物理量錄，本翻_提供—伽合本發财法10戶鍵 置的直接甲醇燃料電池系統3〇,請參見第二圖。在第二圖中， 構件201a係為陽極集電板，構件拠係為陰極集電板， 構件203係為溫控加熱板，構件2〇5係為膜電極組。 步驟(105)係分別量測且記錄在步驟(1 〇3)中各項不同已矣 濃度燃料的條件下，當時運作中的直接甲醇燃料電池2〇 Z 數個物理量參數’並且麵該些物理量參數的其巾三項…硬 立對應的三維量測空間。在步驟(應)中，在已知濃•料2 1281763 件下，本舍明採用了溫度參數 理量參數，來建>數、電流參數等三項物 树立_於甲醇燃料電曰、 利用直接甲醇Μ料& 々二維I測空間。 于入、、、科兒池糸統3Q分 供應條件下，使得甲醇_電池2G發生ΓΓ濃度燃料的 時量測與記錄變化中的溫度參數、電壓失:化::應’亚且同 些參數會傳數’而這 ❿ ,^^ ^ ^ 考错由電腦的處理，而產 生對應於已知》辰度以及該些溫來带 化株丁沾-祕旦、 一 >數、龟壓參數、電流參數等 才、、二、、置測空間’請參見第三圖顯示本發明計算燃料濃 度方法在各種已知濃度燃料 曲 〜π 一維里測空間所得到的等 濃度曲面。在第三圖中，等濃度曲面4卜43、45、47係分別 利用不同的各個已知濃度Cl、G、G、G的燃料所獲得到的， 其中三個座標轴V分別係代表電壓參數、溫度參數、電流參數。 在步驟(105)的已知濃度燃料，其濃度能夠選擇在介於逃 與8v%之間。同時，所要量測與記錄的溫度參數其範圍最好是 介於KTC與8G°C之間，而電壓參數其範圍最好是介於的〇v 與0.5V之間。 步驟(107)係依據該三維量測空間來建立插值計算手段，而 插值計算手段係用於計算出位於直接曱醇燃料電池2()的燃料 的未知濃度。在步驟（107)中，由於三維量測空間的各個等濃 度曲面已經被建立出來，因此，本發明能夠利用插值計算，來 1281763 ^异出燃料的未知濃度。步驟_係當未知濃度之燃料提供給 士甲醇U料電池2〇而發生電化學反應且產生電力，量測此 日谓應於步驟_的至少該三項物理量參數，並糊步驟_ 之插值4异手段’能夠計算得顺於直接甲醇燃料電池 2〇的燃料的目前濃度。 第圖,、、、員不本發明方法的建立插值計算手段的流程圖。步 ❿驟⑽工)係利用在η個已知濃度C2, ··.，⑽燃料所量測到 2些溫度參數、該些電壓參數、該些電流參數等值，在該三維 量測空間中得到n個對應的等濃度曲面，其中Μ 弟三圖所顯示的等濃度曲面41，即為步驟⑽U在Η的情況 下’所執行的具體結果。步驟〇〇73)係提供該未知濃度c的燃 料供應至直接甲賴料電池2㈣及量觀時電化學反應中的 直接甲醇_電池20的溫度、賴、電流，此時所量測到的 •該溫度、該電壓、該電流會係對應到位於該三維量測空間的— 個座標點’而這個座標點是用來作為量測未知濃度的量測點卜 步驟(_係將該量測點p沿該三維量物种之電流座 標軸方向分職影在該n鱗濃度曲面上，轉得n個投影 點’其中該η個投影點之電流座標值分別係、(，2, ·，n。 步驟(1077)係糊下列計算式來計算該燃料的濃度C ·· 9 1281763 本發明的方法1()在完成步驟轉(1G1)至步驟(105)後， 句崔疋出直接甲醇燃料電池2〇的戶斤對應的該些等濃度曲 面’接著，實現步驟(1〇7)與步驟(1〇9)所採行的手段，可以利用 粒式碼來加以具體實現，也就是職鱗濃度曲面以及上述插 值十^·式將其編域程柄，⑽使用於直接^醇燃料電池 20的處理器(圖未顯示)執行。 彳1281763 t i IX DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a concentration meter, and more particularly to a method of calculating a fuel concentration for a direct sterol fuel cell. [Prior Art] The conventional hand used to measure the fuel concentration of a direct methanol fuel cell is only disclosed to the extent that a concentration sensor is used as a measure of fuel concentration. _ This method can be used to determine the concentration measurement problem, but for light, thin, short, and small direct methanol fuel cells, the II sensor scale of the concentration sensor must also closely match, otherwise it will become more and more The more miniaturized direct A_(4) pool, the inability to set the concentration sensor in the detail. The inventors of the present invention are succumbed to the lack of the above-mentioned conventional means, and the method of calculating the fuel concentration for the direct Yin alcohol fuel cell is developed by the inventor of the present invention, and the X-Fang Fangcun is a virtual fuel. A concentration sensor that measures the concentration of the fuel. SUMMARY OF THE INVENTION The main purpose of the present month is to provide a method for calculating the fuel concentration without the aid of a physical concentration sensor, which can be used in a direct methanol fuel cell in an electrochemical reaction, which was used at that time. The fuel is indifferent. The purpose of the spoon is to replace the bulk concentration sensor to provide a method for calculating the fuel concentration of 1281763 * 1 which can be used to measure the concentration of the fuel used in the direct methanol fuel cell in the electrochemical reaction. In order to achieve the above object of the present invention, the present invention provides a method for calculating a different fuel concentration for a direct sterol pool, which comprises the following steps: a step of providing a direct methanol fuel cell. Providing at least one or more different known concentrations of fuel to the directly capped battery, respectively, and causing the direct f-alcohol fuel cell to generate an electrical reaction by electrochemical reaction under different conditions of different known concentrations of fuel A step of. Separately measure and record the number of physical quantities of the battery directly under the I of the different known concentrations of fuel, and select three of the physical quantity parameters to establish the corresponding spoon, 隹The steps to guess the space. The step of interpolating the different means is established based on the three-dimensional measurement space, wherein the interpolation calculation means is configured to calculate the unknown concentration of the fuel located in the direct methanol; When an unknown concentration of fuel is supplied to the direct fuel cell for electrochemical reaction and power generation, the steps of measuring at least the three physical quantity parameters at this time are used, and the interpolation calculation means is used to calculate the exclusive payment to the direct sterol fuel. The step of the current concentration of fuel in the battery. The present invention will be described in detail by way of the following specific embodiments, and with the accompanying drawings, and the following description, and the following description The figure subtracts the reliance of the present invention for a method of calculating a fuel concentration for a direct methanol fuel cell system. The method for calculating the fuel concentration of the present invention is used to calculate the concentration of the fuel at the time of the direct methanol fuel cell, without using a solid concentration sensor at all. The method of calculating the fuel concentration of the present invention includes steps _) to (10), respectively, as follows. Step (10)) provides a direct methanol fuel cell system. Step (10)) is to supply at least one and different known concentrations of fuel to the direct methanol fuel cell 20, respectively, and cause the direct methanol fuel cell 2 to be electrochemically generated under 1 W of each of the different known concentrations of fuel. The reaction produces electricity. In step (10)) and in step (103), various known concentrations of the feed are supplied to the direct methanol fuel cell 20, and the direct methanol fuel cell 2 is subjected to f chemistry under various known concentrations of fuel, respectively. reaction. In order to read the physical records required for the daily ride, this is a direct methanol fuel cell system for the 10 households. In the second figure, the member 201a is an anode collector plate, the member tether is a cathode collector plate, the member 203 is a temperature-controlled heating plate, and the member 2〇5 is a membrane electrode group. Step (105) is separately measured and recorded under the conditions of different enthalpy concentrations of fuel in step (1 〇 3), and the direct methanol fuel cell in operation at that time is 2 〇 Z number of physical quantity parameters 'and the physical quantities The parameter's three items of the towel...the three-dimensional measurement space corresponding to the hard stand. In the step (should), under the known material of 2,128,763 pieces, Bensheming uses the temperature parameter metric parameter to build the three items of the number, current parameters, etc. Direct methanol feed & 々 2D I measurement space. Under the conditions of 3Q sub-supply of the inlet, the, and the children's pools, the temperature parameter and voltage loss in the measurement of the methanol concentration of the methanol-battery 2G and the change of the voltage are: Will pass the number 'and this ❿, ^^ ^ ^ test error by the computer's processing, and produce corresponding to the known "Chen and the temperature of the strained Ding-Secret, a > number, turtle pressure parameters , current parameters, etc., and second, the measured space 'Please refer to the third figure to show the equal concentration surface obtained by the method for calculating the fuel concentration of the present invention in various known concentrations of fuel Φ π 1 dimensional measurement space. In the third figure, the equal-concentration curved surfaces 4, 43, 45, and 47 are respectively obtained by using fuels of different known concentrations of Cl, G, G, and G, wherein the three coordinate axes V respectively represent voltage parameters. , temperature parameters, current parameters. The fuel of known concentration at step (105) can be selected to be between between 6 and 8%. At the same time, the range of temperature parameters to be measured and recorded is preferably between KTC and 8G °C, and the range of voltage parameters is preferably between 〇v and 0.5V. Step (107) establishes an interpolation calculation means based on the three-dimensional measurement space, and the interpolation calculation means is used to calculate an unknown concentration of the fuel located in the direct methanol fuel cell 2(). In step (107), since each of the equal-concentration surfaces of the three-dimensional measurement space has been established, the present invention can utilize the interpolation calculation to obtain an unknown concentration of the fuel of 1281763. Step _ is that when an unknown concentration of fuel is supplied to the methanol-based U battery, an electrochemical reaction occurs and power is generated, and the measurement is performed on at least the three physical quantity parameters of the step _, and the interpolation step _ interpolation 4 The different means' can calculate the current concentration of the fuel that is comparable to the direct methanol fuel cell. The figure, the diagram, the flow chart of the method for calculating the interpolation of the method of the present invention. Step (10) is to measure two temperature parameters, the voltage parameters, and the current parameter values in the n known concentrations C2, ··., (10), in the three-dimensional measurement space. N corresponding equal-concentration curved surfaces are obtained, wherein the equal-concentration curved surface 41 shown by the three figures of the younger brother is the specific result performed by the step (10) U in the case of Η. Step 〇〇73) is to provide the fuel of the unknown concentration c to the direct battery 2 (4) and the temperature, the Torr, and the current of the direct methanol_battery 20 in the electrochemical reaction at the time of measurement, and measured at this time. The temperature, the voltage, and the current are corresponding to a coordinate point located in the three-dimensional measurement space, and the coordinate point is used as a measuring point for measuring the unknown concentration (the system is the measuring point) P along the current coordinate axis direction of the three-dimensional species to work on the n scale concentration surface, and convert n projection points 'where the current coordinate values of the n projection points are respectively, (, 2, ·, n. (1077) The following calculation formula is used to calculate the concentration of the fuel C·· 9 1281763 After the step 1 (1G1) to the step (105) are completed, the method 1() of the present invention, the direct methanol fuel cell 2〇 The means of the equal concentration surface corresponding to the households' 'then, the means used to implement the steps (1〇7) and the steps (1〇9) can be realized by using the granular code, that is, the scale concentration surface and The above interpolation is based on the formula, and (10) is used in the direct fuel. Pool processor (not shown) 20 is performed. Left foot

本U的拉燃料濃度方法1G乃是—種虛擬式燃料濃度 感測器，透過在三維量測帥中所建立的該轉濃度曲面，S 用插值計算手絲獲得鱗的濃度，本發明可謂是—種創新的 發明。 雖然本發日犯以較佳實施觸露如上，然麟用以限定本 發明’任何熟悉此概藝者，林·本發日狀精神和範圍 内’當可做些許更動與潤飾，所作更動細飾仍躲本發明後 附之申請專利範圍之内。 【圖式簡單說明】 醇燃料電㈣統的計算燃料 第一圖顯示本發明用於直接甲 濃度方法的流程圖。The pull fuel concentration method 1G of the present U is a virtual fuel concentration sensor, and the concentration of the scale is calculated by interpolating the hand to obtain the scale concentration through the rotation concentration surface established in the three-dimensional measurement, and the present invention is An innovative invention. Although this day's guilty has been exposed as a better implementation, Ran Lin is used to define the invention. Anyone who is familiar with this art, Lin, this day's spirit and scope, can make some changes and refinements. The decoration is still within the scope of the patent application attached to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Alcohol fuel electric (four) system of calculated fuel The first figure shows a flow chart of the present invention for the direct nail concentration method.

圖顯示配合本發明方法所建置 的直接曱醇燃料電池系 10 1281763 統的構造。 第三圖顯示本發明計算燃料濃度方法在各種已知濃度燃料 下，利用三維量測空間所得到的等濃度曲面。 第四圖顯示本發明方法的建立插值計算手段的流程圖。 【主要元件符號說明】 10 計算燃料濃度方法The figure shows the construction of a direct sterol fuel cell system 10 1281763 constructed in accordance with the method of the present invention. The third figure shows an isocratic curved surface obtained by using the three-dimensional measurement space under various known concentrations of fuel according to the method for calculating the fuel concentration of the present invention. The fourth figure shows a flow chart of the method of establishing interpolation calculations for the method of the present invention. [Main component symbol description] 10 Calculating the fuel concentration method

20 直接曱醇燃料電池 201a 陽極集電板 201b 陰極集電板 203 溫控加熱板 205 膜電極組 30 直接曱醇燃料電池系統 41、43、45、47 等濃度曲面 101、103、105、107、109 步驟 1071、1073、1075 步驟 1120 direct oxime fuel cell 201a anode collector plate 201b cathode collector plate 203 temperature control heating plate 205 membrane electrode group 30 direct oxime fuel cell system 41, 43, 45, 47 and other concentration curved surfaces 101, 103, 105, 107, 109 Steps 1071, 1073, 1075 Step 11

Claims (1)

1281763 十、申請專利範圍： 1· 一種用於直接曱醇燃料電池的計算燃料濃度方法，包括下列+ 驟： (A)提供一直接甲醇燃料電池； ⑼將至少-伽上且不同的已知濃度的簡分職供給該直接 曱醇燃料電池，並使得該直接曱雜料電池分別在各個不同已知 濃度燃料的條件下，發生電化學反應而產生電力； (C) 分別量測且記錄該步驟⑼中各項不同已知濃度燃料的條件 下，當時運作中的該直接甲醇燃料電池的複數個物理量參數，並 且選擇該些物理量參數的其中三項，來建立對應的三維量測空 間，其中該三項物理量參數係包含：—溫度參數、—電壓參數、 一電流參數； (D) 依據該三維量測空間來建立—插值計算手段，其中該插值計算 鬱手段係用於計算出位於該直接甲醇燃料電池的燃料的未知濃度； 以及 (E) 當未知濃度之燃料提供給該直接甲醇㈣電池而發生電化學 反應且產生電力’量測此時對應於步驟(c)的至少該三項物理量參 數，並利用步驟(D)所建立之插值計算手段，能夠計算得到位於該 直接甲醇燃料電池的燃料的目前濃度。 2·如申明專利|&圍第！項所述之計算燃料濃度方法，其中該步驟 12 1281763 (B) 所提供的各個已知濃度燃料其濃度，係介於3v%與8v%之間。 3·如申請專利範圍第1項所述之計算燃料濃度方法，其中該步驟 (c)的記錄步驟，係記錄介於10°C與80°C之間的溫度參數。 4·如申凊專利範圍第1項所述之計算燃料濃度方法，其中該步驟 (C) 的e己錄步驟，係記錄介於〇^與〇·5ν之間的電壓參數。 5·如申睛專利範圍第1項所述之計算燃料濃度方法，其中該插值 _ 计异手段，係一個以程式碼實現的插值計算手段。 6·如申凊專利範圍第1項所述之計算燃料濃度方法，其中該直接 曱醇燃料電池，係一雙極直接曱醇燃料電池。 7·如申凊專利範圍第1項所述之計算燃料濃度方法，其中該直接 曱醇砧料弘池，係一採以印刷電路板製程所製造的直接曱醇燃料 電池。 8·如申請專利範®第1項所述之計算㈣濃度方法，其中該步驟 ’（D)的插值計算手段的建立步驟，係包括下列步驟： ㈣利用在η個已知濃度Ci，C2,…，Q的燃料所量測到該三項 物理里芩數，在該三維量測空間中得到n個對應的等濃度曲面， /、中k-l，2, ···，n，以及該三項物理量參數分別係該溫度參數、該 電壓參數、該電流參數； ⑽）提供鍊知纽供應直接▼賴料電池，以及 1測此時該直接帽簡電池的溫度、電壓、電流，其中此時的 13 1281763 該溫度、電壓、電流係對應到位於該三維量測空間中之量測點p; (d3)將該量測點P沿該三維量測空間中之電流座標軸方向分別投 影在該η個等濃度曲面上，以取得η個投影點，其中該η個投影 點之電流座標值分別係/z.，i二1，2,…，η ;以及 (d4)利用下列計算式計算該燃料的濃度C / \ η η T T c-Σ Πτ4 -Q k=l /=1 1k~1i V y 籲其中nS。 14 1281763 七、指定代表圖： (一） 本案指定代表圖為：第（一）圖。 (二) 本代表圖之元件符號簡單說明： ίο 計算燃料濃度方法 101、103、105、107、109 步驟1281763 X. Patent Application Range: 1. A method for calculating the fuel concentration of a direct sterol fuel cell, comprising the following + steps: (A) providing a direct methanol fuel cell; (9) at least - gamma and different known concentrations The simple sputum is supplied to the direct sterol fuel cell, and the direct doping battery is electrochemically reacted to generate electricity under the conditions of different known concentrations of fuel; (C) separately measuring and recording the step (9) a plurality of physical quantity parameters of the direct methanol fuel cell in operation under the condition of different known concentration fuels, and selecting three of the physical quantity parameters to establish a corresponding three-dimensional measurement space, wherein the The three physical quantity parameters include: - temperature parameter, - voltage parameter, a current parameter; (D) based on the three-dimensional measurement space - an interpolation calculation means, wherein the interpolation calculation means is used to calculate the direct methanol An unknown concentration of fuel for the fuel cell; and (E) occurs when an unknown concentration of fuel is supplied to the direct methanol (four) battery Electrochemical reaction and generating electric power 'measurement at this time corresponds to at least the three physical quantity parameters of step (c), and using the interpolation calculation means established by step (D), the fuel located in the direct methanol fuel cell can be calculated Current concentration. 2.·If you declare a patent|& The method of calculating a fuel concentration according to the item, wherein the concentration of each known concentration of fuel provided in the step 12 1281763 (B) is between 3v% and 8v%. 3. The method of calculating a fuel concentration according to claim 1, wherein the recording step of the step (c) records a temperature parameter between 10 ° C and 80 ° C. 4. The method for calculating a fuel concentration according to claim 1, wherein the step (C) of the step (C) records a voltage parameter between 〇^ and 〇·5ν. 5. The method for calculating a fuel concentration according to claim 1, wherein the interpolation _ different means is an interpolation calculation method implemented by a code. 6. The method of calculating a fuel concentration according to claim 1, wherein the direct sterol fuel cell is a bipolar direct sterol fuel cell. 7. The method of calculating a fuel concentration according to claim 1, wherein the direct sterol anvil is a direct sterol fuel cell manufactured by a printed circuit board process. 8. The method for calculating the (4) concentration method as described in claim 1 of the patent application, wherein the step of establishing the interpolation calculation means of the step '(D) comprises the following steps: (4) using η known concentrations Ci, C2, ..., the fuel of Q measures the number of the three physical physics, and obtains n corresponding equal-concentration surfaces, /, kl, 2, ···, n, and the three items in the three-dimensional measurement space. The physical quantity parameters are respectively the temperature parameter, the voltage parameter, and the current parameter; (10)) providing the chain to the supply of the direct supply, and measuring the temperature, voltage, and current of the direct cap battery at this time, wherein 13 1281763 The temperature, voltage, and current are corresponding to the measurement point p located in the three-dimensional measurement space; (d3) the measurement point P is respectively projected on the n coordinate axes along the current coordinate axis direction in the three-dimensional measurement space On the equal-concentration surface, to obtain n projection points, wherein the current coordinate values of the n projection points are respectively /z., i two 1, 2, ..., η; and (d4) calculate the fuel by using the following formula Concentration C / \ η η TT c-Σ Πτ4 -Q k=l /=1 1k~1i V y Called for nS. 14 1281763 VII. Designated representative map: (1) The representative representative of the case is: (1). (2) A brief description of the component symbols of this representative diagram: ίο Method of calculating fuel concentration 101, 103, 105, 107, 109 八、本案若有化學式時，請揭示最能顯示發明特徵的化學式：8. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention:
TW094116661A 2005-05-23 2005-05-23 Method for calculating the fuel concentration used in a direct methanol fuel cell TWI281763B (en)

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TW094116661A TWI281763B (en) 2005-05-23 2005-05-23 Method for calculating the fuel concentration used in a direct methanol fuel cell
JP2006138792A JP2006332050A (en) 2005-05-23 2006-05-18 Method for computing fuel concentration of direct methanol fuel cell
DE102006024170A DE102006024170A1 (en) 2005-05-23 2006-05-23 Methanol-fuel cell fuel density determination involves measuring physical parameters based on different fuel densities, supplying fuel of unknown density into cell, and implementing interpolation computation to determine density

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