CN100464461C - Fuel supply method for liquid fuel cell - Google Patents
Fuel supply method for liquid fuel cell Download PDFInfo
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- CN100464461C CN100464461C CNB2006100576115A CN200610057611A CN100464461C CN 100464461 C CN100464461 C CN 100464461C CN B2006100576115 A CNB2006100576115 A CN B2006100576115A CN 200610057611 A CN200610057611 A CN 200610057611A CN 100464461 C CN100464461 C CN 100464461C
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- liquid fuel
- fuel
- aqueous solution
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- 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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Abstract
This invention relates to a fuel supply method used in liquid fuel cells including: A, providing a fuel with known concentration to a liquid fuel cell, B, changing the electric value of the load connected with the cell, C, measuring and recording the cost volume of the high concentration liquid fuel and aqueous solution in the fuel, D, computing more than one ratios of the cost volumes between aqueous solution and high concentrated liquid fuel, E, selecting one computed ratio from them, F, when the cell consumes a fuel of a known volume, then computing the cost volume of high concentration liquid fuel and that of aqueous solution based on the ratio and said known volume, G, supplying new high concentration liquid fuel and aqueous solution to the fuel according to the cost volumes of them got in step F.
Description
Technical field
The present invention relates to a kind of fuel feeding method, and particularly can supply with for a long time in liquid fuel to the liquid fuel battery device of a stable and debita spissitudo.
Background technology
Fuel cell is a kind of chemical energy that will be stored in fuel and the oxidant is converted into electric energy by electrode reaction a Blast Furnace Top Gas Recovery Turbine Unit (TRT).The kind of fuel cell is quite a lot of, and the mode of classification also each is different, if distinguished, five kinds of electrolytical fuel cells of difference such as alkaline fuel cell, phosphoric acid fuel cell, Proton Exchange Membrane Fuel Cells, molten carbonate fuel cell, solid-oxide fuel cell are arranged according to the electrolyte property difference.Wherein, Proton Exchange Membrane Fuel Cells comprises so-called direct methanol fuel cell again, is fuel with methyl alcohol directly, and does not need first upgrading to become hydrogen, be to research and develop one of higher technology of energy at present, its application target comprises big power station, electric generators for automobile, compact power etc.
Yet in the known technology, no matter be the fuel gas battery, or liquid fuel battery (as: direct methanol fuel cell), in the commercial process of marching toward, all face a difficult problem, i.e. the stability of the electric power output performance of fuel cell.At liquid fuel battery, the factor that influences its electric power output performance is a lot, and wherein one promptly about the concentration of liquid fuel.For the electric power output that makes liquid fuel battery has stability, except allowing liquid fuel can be uniformly distributed in the electrochemical reaction district of liquid fuel battery, most important person no more than can supply with have stable and debita spissitudo liquid fuel to liquid fuel battery, so can reach the stable purpose of electric power output.
Yet with known technology, in the operation of liquid fuel battery, owing to can't accurately control the increment of initiate liquid fuel, and make the concentration of the liquid fuel after the supply to depart from gradually along with the time outside the suitableeest scope that set originally, thereby causing that liquid fuel battery overall electric power output performance is last neitherly can to reach perfect condition, this shortcoming is that known liquid fuel battery one of can't smooth commercial reason always.
Summary of the invention
Main purpose of the present invention provides a kind of fuel feeding method, can supply with a kind of liquid fuel with stable and debita spissitudo of liquid fuel battery for a long time.
For reaching above-mentioned purpose of the present invention, the invention provides a kind of fuel feeding method that is used for liquid fuel battery, comprise the following steps: that (A) offers a liquid fuel battery with the fuel of a concentration known, wherein this fuel is mixed by a high concentration liquid fuel and an aqueous solution; (B) provide a load (Load) and this liquid fuel battery to electrically connect, and change the electrical property load value of this load; (C) in this step (B) is carried out, this liquid fuel battery that measures and write down in the running consumes the consumption of this high concentration liquid fuel in this fuel and the consumption of this aqueous solution; (D) at least more than one the ratio of the consumption that calculates the consumption of this aqueous solution and this high concentration liquid fuel between the two; (E) in these ratios, select a ratio calculated; (F) consume this fuel of a known volume when this liquid fuel battery, according to this ratio calculated and this known volume and calculate this liquid fuel battery respectively and consume the consumption of this high concentration liquid fuel in this fuel and the consumption of this aqueous solution; (G) be dependent on the consumption of this high concentration liquid fuel that step (F) obtained and the consumption of this aqueous solution, to supply with this new high concentration liquid fuel of equaling these consumptions and new this aqueous solution respectively to this fuel.
Be familiar with this technology personage and understand purpose of the present invention, feature and effect for making, now by following specific embodiment, and conjunction with figs., to the present invention illustrate in detail as after.
Description of drawings
Fig. 1 shows that the present invention is used for the flow chart of the fuel feeding method of liquid fuel battery;
Fig. 2 shows and cooperates the inventive method to build the calcspar of the fuel feed system of the liquid fuel battery of putting;
Fig. 3 shows an experimental data database of being set up via step 104 in the execution graph 1 and step 106 back.
The figure number explanation
10 fuel feeding methods
100,102,104,106,108,110,112 steps
20 fuel feed systems
200 liquid fuels are supplied with groove 202 high concentration liquid fuels and are supplied with groove
204 aqueous solution are supplied with groove 206,208 pumps
2000,2020,2040 liquid level sensors, 22 liquid fuel batteries
24 loads, 26 control units
Embodiment
Fig. 1 shows that the present invention is used for the flow chart of the fuel feeding method of liquid fuel battery.Fig. 2 shows and cooperates the inventive method to build the calcspar of the fuel feed system 20 of the liquid fuel battery of putting.Fuel feeding method 10 of the present invention is to be used for supplying with the required liquid fuel of liquid fuel battery 22.Wherein, be applicable to that liquid fuel battery 22 of the present invention can be a direct methanol fuel cell, and the fluid fuel in direct methanol fuel cell promptly uses this type of liquid fuel of methanol aqueous solution.Fuel feeding method 10 of the present invention comprises step 100 to step 112, is respectively described below interior literary composition.
Step 104 is in step 102 is carried out, and measures and write down liquid fuel battery 22 consumption of this high concentration liquid fuel in this fuel that consumes and the consumption of this aqueous solution in the running at that time.In the present invention, be to finish by the liquid level sensor among Fig. 2 2020,2040 respectively for the metrology operation of the consumption of the consumption of this high concentration liquid fuel and this aqueous solution.
Step 106 is at least more than one the ratio of consumption between the two that calculates the consumption of this aqueous solution and this high concentration liquid fuel.Illustrate with Fig. 3 at this, Fig. 3 is that the original concentration of the methanol aqueous solution in liquid fuel is supplied with groove 200 is 10 (vol%), and bestow liquid fuel battery 22 various load current values and continue to have 1～2 hour, an and experimental data database of under conditions such as 25～40 ℃, being set up in operating temperature.As shown in Fig. 3, under these conditions, by measure and record running at that time in liquid fuel battery 22 consume pure methanol consumption amount and aqueous solution consumption in the methanol aqueous solution, and aqueous solution consumption that further calculates and pure methanol consumption amount several ratios between the two, all be between 2 and 3, and this experimental result is to can be the present invention institute further to utilize.In addition, control unit 26 is the computational tasks in order to execution in step 106 in the present invention, record the consumption of the consumption of this high concentration liquid fuel and this aqueous solution when liquid level sensor 2020,2040 after, measurement data can be sent to control unit 26, calculate the ratio of consumption between the two of the consumption of these aqueous solution and this high concentration liquid fuel again by control unit 26.
Step 108 is to select a ratio calculated in these ratios that calculate from step 106.If with Fig. 3 is example, then preferable ratio calculated can select 2.5 to be typical value, and this ratio calculated is not only can be defined as 2.5 certainly, and also visual other various situations of this ratio calculated and demand are adjusted into the arbitrary numerical value between 2 and 3.
Step 110 is to consume this fuel of a known volume when this liquid fuel battery 22, calculates liquid fuel battery 22 consumption of this high concentration liquid fuel in this fuel that consumes and the consumption of this aqueous solution respectively according to the selected ratio calculated that goes out of step 108 and this known volume.In the present invention, be to finish for the measurement work of this known volume that this fuel consumes by the liquid level sensor among Fig. 2 2000, then be to carry out equally as for the evaluation work of step 110 by control unit 26.
Step 112 is to be dependent on the consumption of this high concentration liquid fuel that step 110 obtains and the consumption of this aqueous solution, to supply with this new high concentration liquid fuel of equaling these consumptions and new this aqueous solution respectively to this fuel.About the replenishment operation of the new high concentration liquid fuel and the new aqueous solution, be to see through the running of control unit 26 by control pump 206,208 in the present invention with concrete enforcement.
Characteristics of the present invention are, see through experiment and find that specifically aqueous solution consumption and the pure methanol consumption amount ratio between the two can fall within the scope, so the present invention can be in the operation of liquid fuel battery, each consumes situation precisely to grasp the liquid fuel composition middle and high concentration liquid fuel and the aqueous solution, thereby can accurately supply with new high concentration liquid fuel and the new required increment of the aqueous solution, so that the concentration of the liquid fuel that mixes was at last both stablized and was maintained all the time within the suitableeest scope that set originally.
Though the present invention with specific embodiment openly as above; right its disclosed specific embodiment is not in order to limit the present invention; anyly be familiar with this operator; without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations; its change of doing all belongs to category of the present invention with retouching, protection scope of the present invention when with claim of the present invention the person of being defined be as the criterion.
Claims (9)
1. a fuel feeding method that is used for liquid fuel battery is characterized in that, comprises the following steps:
(A) fuel with a concentration known offers a liquid fuel battery, and wherein this fuel is mixed by a high concentration liquid fuel and an aqueous solution;
(B) provide a load and this liquid fuel battery to electrically connect, and change the electrical property load value of this load;
(C) in this step (B) is carried out, this liquid fuel battery that measures and write down in the running consumes the consumption of this high concentration liquid fuel in this fuel and the consumption of this aqueous solution;
(D) at least more than one the ratio of the consumption that calculates the consumption of this aqueous solution and this high concentration liquid fuel between the two;
(E) in these ratios, select a ratio calculated;
(F) consume this fuel of a known volume when this liquid fuel battery, according to this ratio calculated and this known volume and calculate this liquid fuel battery respectively and consume the consumption of this high concentration liquid fuel in this fuel and the consumption of this aqueous solution;
(G) be dependent on the consumption of this high concentration liquid fuel that step (F) obtained and the consumption of this aqueous solution, to supply with this new high concentration liquid fuel of equaling these consumptions and new this aqueous solution respectively to this fuel.
2. the fuel feeding method that is used for liquid fuel battery as claimed in claim 1 is characterized in that, this fuel is a methanol aqueous solution.
3. the fuel feeding method that is used for liquid fuel battery as claimed in claim 1 is characterized in that, this high concentration liquid fuel is a pure methyl alcohol.
4. the fuel feeding method that is used for liquid fuel battery as claimed in claim 1 is characterized in that, this liquid fuel battery is a direct methanol fuel cell.
5. the fuel feeding method that is used for liquid fuel battery as claimed in claim 2 is characterized in that, the concentration of this methanol aqueous solution is 10vol%.
6. the fuel feeding method that is used for liquid fuel battery as claimed in claim 5 is characterized in that, these ratios that this step (D) is calculated are between 2 and 3.
7. the fuel feeding method that is used for liquid fuel battery as claimed in claim 6 is characterized in that, selected this ratio calculated of this step (E) is 2.5.
8. the fuel feeding method that is used for liquid fuel battery as claimed in claim 1 is characterized in that, the electrical property load value of this load is a magnitude of voltage.
9. the fuel feeding method that is used for liquid fuel battery as claimed in claim 1 is characterized in that, the electrical property load value of this load is a current value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100576115A CN100464461C (en) | 2006-02-22 | 2006-02-22 | Fuel supply method for liquid fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100576115A CN100464461C (en) | 2006-02-22 | 2006-02-22 | Fuel supply method for liquid fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101026242A CN101026242A (en) | 2007-08-29 |
| CN100464461C true CN100464461C (en) | 2009-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100576115A Expired - Fee Related CN100464461C (en) | 2006-02-22 | 2006-02-22 | Fuel supply method for liquid fuel cell |
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| CN (1) | CN100464461C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106816612A (en) * | 2017-01-03 | 2017-06-09 | 佛山索弗克氢能源有限公司 | The watch-dog of SOFC pile generated energy |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103305A (en) * | 1985-04-30 | 1987-06-03 | 株式会社日立制作所 | Fuel cell |
| JP2003331885A (en) * | 2002-05-17 | 2003-11-21 | Daihatsu Motor Co Ltd | Fuel cell device |
| CN1489233A (en) * | 2002-08-30 | 2004-04-14 | 雅马哈发动机株式会社 | Direct modified fuel cell system |
| CN1536701A (en) * | 2003-04-11 | 2004-10-13 | 三星Sdi株式会社 | Fuel volume control system including pressure sensor |
| CN2749058Y (en) * | 2004-10-18 | 2005-12-28 | 胜光科技股份有限公司 | Feedback type modularized fuel battery unit |
-
2006
- 2006-02-22 CN CNB2006100576115A patent/CN100464461C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103305A (en) * | 1985-04-30 | 1987-06-03 | 株式会社日立制作所 | Fuel cell |
| JP2003331885A (en) * | 2002-05-17 | 2003-11-21 | Daihatsu Motor Co Ltd | Fuel cell device |
| CN1489233A (en) * | 2002-08-30 | 2004-04-14 | 雅马哈发动机株式会社 | Direct modified fuel cell system |
| CN1536701A (en) * | 2003-04-11 | 2004-10-13 | 三星Sdi株式会社 | Fuel volume control system including pressure sensor |
| CN2749058Y (en) * | 2004-10-18 | 2005-12-28 | 胜光科技股份有限公司 | Feedback type modularized fuel battery unit |
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| Publication number | Publication date |
|---|---|
| CN101026242A (en) | 2007-08-29 |
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