CN113528096A - Efficient heat transfer hydrogen fuel cell cooling liquid - Google Patents
Efficient heat transfer hydrogen fuel cell cooling liquid Download PDFInfo
- Publication number
- CN113528096A CN113528096A CN202110863917.4A CN202110863917A CN113528096A CN 113528096 A CN113528096 A CN 113528096A CN 202110863917 A CN202110863917 A CN 202110863917A CN 113528096 A CN113528096 A CN 113528096A
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- coolant
- cooling liquid
- water
- conductivity
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
-
- 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
- H01M8/04029—Heat exchange using liquids
-
- 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
Abstract
The invention provides a high-efficiency heat transfer hydrogen fuel cell cooling liquid which is composed of the following raw materials in parts by weight: 1000kg of base liquid and 1kg-50kg of nano silicon dioxide, wherein the base liquid is composed of one or more of alcohol compounds, nonionic metal inhibitors and water. The heat conductivity coefficient of the invention is improved by 5-50% compared with the heat conductivity coefficient of the base liquid.
Description
Technical Field
The invention relates to a hydrogen fuel cell cooling liquid, in particular to a liquid with functions of efficient heat transfer and the like, which is used for a hydrogen fuel cell thermal management system and relates to the technical field of chemical industry.
Background
A hydrogen fuel cell is a device that directly converts hydrogen and oxygen into electrical energy. It has the characteristics of high conversion efficiency, environmental protection and the like. The hydrogen fuel cell generates a large amount of heat and must be cooled by a cooling medium in order to ensure the operational performance and the service life of the hydrogen fuel cell. The coolant passes into the bipolar plate to carry away heat generated by the hydrogen fuel cell, and because the coolant is in direct contact with the bipolar plate, the coolant maintains a low electrical conductivity to prevent power loss generated in the fuel cell. Generally, the cooling medium of the thermal management system of the hydrogen fuel cell engine needs to have excellent insulation and the electric conductivity is less than 10 muS/cm during the use process.
Another significant challenge of hydrogen fuel cells is their heat generation. The maximum working temperature range of a Proton Exchange Membrane Fuel Cell (PEMFC) is 60-80 ℃, and higher working temperature can aggravate the degradation of the membrane and seriously affect the performance life of the fuel cell. The heat removal amount of the hydrogen fuel engine coolant accounts for 95% of the total heat removal amount and is far higher than 50% of the heat removal amount of the traditional internal combustion engine, so that higher requirements are put on the hydrogen fuel battery coolant, and the specific solution is to increase the flow and the heat dissipation area of a heat exchange medium. If a coolant with an anti-freezing function is used, the thermal conductivity of the medium is smaller, and the challenge is more severe.
At present, the cooling liquid specially used for the hydrogen fuel cell solves the technical problems of low conductivity and freeze prevention of the cooling liquid by the technologies of an ion removal tank, a non-metal ion inhibitor, an alcohol antifreeze and the like. On the basis of the above-mentioned low electrical conductivity and freeze protection, a cooling medium having a high heat transfer coefficient without affecting the electrical conductivity and freeze protection performance has not been known. High purity water is used as the cooling liquid and has a heat transfer coefficient (20 ℃) of about 0.59W/(mK), and a cooling liquid having a freezing point of-35 ℃ is used and has a heat transfer coefficient (20 ℃) of about 0.37W/(mK), such as BASF FC G20 and Dynalene LC-EG-35.
Chinese patent CN109148915 discloses a fuel cell coolant, which mainly comprises ethylene glycol, triethanolamine, a defoaming agent, deionized water and the like, and has the functions of freeze prevention and corrosion prevention. The triethanolamine adopted by the invention can cause the increase of the electrical conductivity, the freezing point is-35 ℃, and the heat conductivity coefficient (20 ℃) of the product is 0.38W/(m.K).
US patent US8187763B discloses a coolant composition for a fuel cell unit comprising at least one unsaturated-bond fatty alcohol, which solves the problem of oxidation of ethylene glycol in the coolant, thereby ensuring that the coolant composition maintains an electrical conductivity of not more than 10 μ S/cm. The cooling liquid has no antiseptic effect, can not inhibit the precipitation of metal part ions, and has a freezing point of-35 deg.C and a product thermal conductivity (20 deg.C) of 0.36W/(m.K).
Chinese patent CN 112457822 a discloses a fuel cell coolant and a preparation method thereof, wherein a heat conducting agent is added to improve the heat conductivity coefficient of the fuel cell coolant, and the heat conducting agent comprises one or more of nano titanium dioxide, nano aluminum oxide and nano zinc oxide. The heat conductivity coefficient of the fuel cell coolant is greatly improved, but the conductivity of the fuel cell coolant does not meet the requirement of the fuel cell coolant due to the addition of the metal oxidant.
Therefore, according to the characteristics that the heat productivity of the hydrogen fuel cell is large and the cooling liquid is required to keep low conductivity, the high-efficiency heat transfer hydrogen fuel cell cooling liquid needs to be developed and is specially applied to a hydrogen fuel cell thermal management system.
Disclosure of Invention
The invention aims to provide a cooling liquid for a hydrogen fuel cell, which has the characteristics of strong heat transfer capacity and low electrical conductivity.
In order to achieve the purpose of the invention, the technical characteristics of the invention are as follows:
a coolant for a fuel cell, comprising a fuel cell coolant consisting essentially of a base fluid and nanosilica, the base fluid comprising at least one compound selected from the group consisting of an alcohol compound, water, and a nonionic metal inhibitor, wherein the nanosilica is dispersed in the base fluid.
The fuel cell coolant is characterized by containing 0.1 to 5 parts by mass of the nanosilica with respect to 100 parts by mass of a base liquid.
The fuel cell cooling liquid is characterized in that the thermal conductivity coefficient of the nano silicon dioxide to the base liquid is improved by 5-50%.
The fuel cell cooling liquid is characterized in that the nano silicon dioxide has no influence on the conductivity of the fuel cell cooling liquid and can still be kept to be not more than 10 mu S/cm.
The fuel cell coolant is characterized in that the base fluid comprises at least one of ethylene glycol, propylene glycol, glycerol, a nonionic metal inhibitor and water, preferably the ethylene glycol, the nonionic metal inhibitor and the water.
The fuel cell coolant is characterized in that base liquids with different freezing points can be formed by mixing ethylene glycol, propylene glycol, glycerol and water in different proportions.
The fuel cell cooling liquid is characterized in that the non-ionic metal inhibitor is one or more of bone glue, lipid and azole, and preferably the bone glue, triethanolamine borate and methylbenzotriazole.
The fuel cell coolant is characterized in that the conductivity (20 ℃) of the base liquid is not more than 10 mu S/cm.
The fuel cell coolant is characterized in that the resistivity of the deionized water is more than 18 megaohms.
The fuel cell cooling liquid is characterized by being applied to a fuel cell temperature control system, in particular to a fuel cell automobile temperature control system.
The fuel cell cooling liquid can be prepared by adopting a conventional method in the field, can be prepared by mixing the components according to a ratio, uniformly stirring the components with the assistance of ultrasonic waves and finally passing through deionized resin.
The fuel cell cooling liquid is prepared into nanofluid by adopting a nano material, so that the heat conductivity coefficient of the cooling liquid is improved. The nano fluid enhanced heat transfer mechanism is to increase the heat transfer surface area and heat capacity of the liquid, enhance the turbulence intensity due to the interaction of particles and multi-interfaces of particles and the like, make the temperature distribution of the fluid interface uniform, reduce the thickness of the laminar boundary layer and the like. The selective addition of the nano material greatly improves the heat conductivity coefficient of the base liquid and simultaneously can keep the low conductivity characteristic of the base liquid. The performance indexes of the fuel cell coolant of the present invention are shown in table 1:
TABLE 1 Fuel cell Coolant inspection index
Note: the heat conductivity coefficient improvement rate is obtained by subtracting the conductivity of the corresponding base liquid from the conductivity of the fuel cell cooling liquid at the same temperature, and dividing the obtained result by the conductivity of the corresponding base liquid, wherein the obtained result is calculated by taking the percentage as a unit.
The detection result according to the GB/T11446.4 method shows that the cooling liquid has extremely low conductivity and has no influence on the conductivity of the base liquid.
The heat conductivity coefficient of the fuel cell cooling liquid is improved by 5-50% compared with that of the base liquid by referring to an ISO 22007-2 standard method and adopting a Hot Disk method for detection.
Compared with the prior art, the technical scheme of the invention has the following advantages and effects:
the fuel cell cooling liquid can improve the heat transfer coefficient of the base liquid, and solves the technical problem that the conventional fuel cell cooling liquid is difficult to effectively dissipate heat due to large heat productivity of the fuel cell. In addition, the nanoparticles of the fuel cell coolant of the present invention are not filtered by the ion exchange resin, and the low conductivity of the coolant itself can be always maintained.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1
1000kg of ethylene glycol, 3.6kg of nano silicon dioxide and 1000kg of water are mixed and filtered to obtain the hydrogen fuel cell cooling liquid.
Example 2
1000kg of ethylene glycol, 32kg of nano silicon dioxide and 1000kg of water are mixed and filtered to obtain the hydrogen fuel cell cooling liquid.
Example 3
1000kg of ethylene glycol, 18kg of nano silicon dioxide and 1000kg of water are mixed and filtered to obtain the hydrogen fuel cell cooling liquid.
Example 4
The cooling liquid for the hydrogen fuel cell is prepared by mixing and filtering 16kg of nano silicon dioxide and 1000kg of water. (thermal conductivity to Water increase)
Example 5
1000kg of BASF FC20 with the freezing point of-35.8 ℃ and 16kg of nano silicon dioxide are mixed and filtered to obtain the hydrogen fuel cell cooling liquid.
Example 6
1000kg of ethylene glycol, 18kg of nano silicon dioxide, 1kg of bone glue, 0.5kg of triethanolamine borate, 2.5kg of methyl benzotriazole and 1000kg of water are mixed and filtered to obtain the hydrogen fuel cell cooling liquid.
Comparative example 1
The comparative example was deionized water and had a resistivity of 18.5 megaohms.
Comparative example 2
This comparative example is BASF FC-20, which has a freezing point of-35.8 ℃.
Comparative example 3
The comparative example is deionized water, 18kg of nano copper is added into the deionized water, and the deionized water and the nano copper are mixed and filtered to obtain the copper-based composite material.
The results of testing the fuel cell coolants in the examples and comparative examples are shown in table 2:
table 2 fuel cell coolant test results
| Inspection item | Conductivity (20 ℃), uS/cm | Thermal conductivity (80 ℃), W/(m.K) | Rate of increase of thermal conductivity/%) |
| Example 1 | 0.8 | 0.72 | 5.8 |
| Example 2 | 1.1 | 0.64 | 48.8 |
| Example 3 | 1.2 | 0.51 | 18.6 |
| Example 4 | 0.6 | 1.00 | 47.1 |
| Example 5 | 1.2 | 0.60 | 39.5 |
| Example 6 | 1.2 | 0.61 | 41.8 |
| Comparative example 1 | 0.6 | 0.68 | —— |
| Comparative example 2 | 1.2 | 0.43 | —— |
| Comparative example 3 | 982 | 1.37 | 101.4 |
And (4) conclusion: through detection, the hydrogen fuel cell cooling liquid disclosed by the invention can keep lower conductivity, meets the technical requirements of a hydrogen fuel cell thermal management system, and more importantly, can improve the heat conductivity coefficient of the hydrogen fuel cell cooling liquid by 5-50% compared with a base liquid.
It should be noted that the above-mentioned embodiments are only for explaining the present invention, and do not constitute any limitation to the present invention. The present invention has been described with reference to exemplary embodiments, but the words which have been used herein are words of description and illustration, rather than words of limitation. The invention can be modified, as prescribed, within the scope of the claims and without departing from the scope and spirit of the invention. Although the invention has been described herein with reference to particular means, materials and embodiments, the invention is not intended to be limited to the particulars disclosed herein, but rather extends to all other methods and applications having the same functionality.
Claims (9)
1. A coolant composition for a fuel cell comprising a fuel cell coolant composed of a base liquid comprising at least one selected from the group consisting of an alcohol compound, water, a nonionic metal inhibitor, and nanosilica, wherein the nanosilica is dispersed in the base liquid.
2. The fuel cell coolant according to claim 1, comprising 1kg to 50kg of the nanosilica, preferably 1.8 kg to 18kg, relative to 1000kg of base liquid.
3. The fuel cell coolant of claim 1, wherein the thermal conductivity of the nanosilica to the base fluid is increased by 5-50%.
4. The fuel cell coolant according to claim 1, wherein the nanosilica has no influence on the conductivity of the fuel cell coolant, and can be maintained at not more than 10 μ S/cm.
5. The fuel cell coolant of claim 1, the base fluid comprising one or more of ethylene glycol, propylene glycol, glycerol, and water.
6. The fuel cell coolant of claims 1 and 5, wherein different proportions of ethylene glycol, propylene glycol, and glycerin are mixed with water to form base fluids with different freezing points.
7. The base fluid of claim 6 having an electrical conductivity (20 ℃) of not more than 10 μ S/cm.
8. According to the claims 1, 6 and 7, the water is deionized water and has a resistivity of more than 18 megohms.
9. The fuel cell cooling liquid according to claim 1 is applied to a fuel cell temperature control system, in particular to a fuel cell automobile temperature control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110863917.4A CN113528096A (en) | 2021-07-29 | 2021-07-29 | Efficient heat transfer hydrogen fuel cell cooling liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110863917.4A CN113528096A (en) | 2021-07-29 | 2021-07-29 | Efficient heat transfer hydrogen fuel cell cooling liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113528096A true CN113528096A (en) | 2021-10-22 |
Family
ID=78089612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110863917.4A Pending CN113528096A (en) | 2021-07-29 | 2021-07-29 | Efficient heat transfer hydrogen fuel cell cooling liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113528096A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114100392A (en) * | 2021-11-15 | 2022-03-01 | 郝建强 | Preparation method of non-contact hydrogen fuel cell cooling liquid |
| CN117447973A (en) * | 2023-12-22 | 2024-01-26 | 纯牌科技股份有限公司 | Cooling liquid for electric automobile and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703039A (en) * | 2012-06-07 | 2012-10-03 | 青岛康普顿科技股份有限公司 | Preparation method of nanofluid cooling liquid and nanofluid cooling liquid prepared by same |
| US20120270129A1 (en) * | 2004-09-08 | 2012-10-25 | Prestone Products Corporation | Heat transfer system, fluid, and method |
| CN102757769A (en) * | 2012-08-03 | 2012-10-31 | 何秋生 | Water-based nano-oxide coolant for cooling high-power central processing unit (CPU) chip and operation system |
| CN103045180A (en) * | 2012-12-26 | 2013-04-17 | 青岛科技大学 | Low-conductivity nanofluid and preparation method thereof |
| CN103890129A (en) * | 2011-10-21 | 2014-06-25 | 雪佛龙美国公司 | Coolant formulations |
| CN106634861A (en) * | 2016-10-12 | 2017-05-10 | 哈尔滨工业大学 | Preparation method of low-concentration silicon dioxide nano fluid based on water/ethylene glycol |
| CN112457822A (en) * | 2020-11-04 | 2021-03-09 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Fuel cell cooling liquid and preparation method thereof |
| CN112457823A (en) * | 2020-11-04 | 2021-03-09 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Refrigerating fluid for fuel cell power generation module and preparation method thereof |
-
2021
- 2021-07-29 CN CN202110863917.4A patent/CN113528096A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120270129A1 (en) * | 2004-09-08 | 2012-10-25 | Prestone Products Corporation | Heat transfer system, fluid, and method |
| CN103890129A (en) * | 2011-10-21 | 2014-06-25 | 雪佛龙美国公司 | Coolant formulations |
| CN102703039A (en) * | 2012-06-07 | 2012-10-03 | 青岛康普顿科技股份有限公司 | Preparation method of nanofluid cooling liquid and nanofluid cooling liquid prepared by same |
| CN102757769A (en) * | 2012-08-03 | 2012-10-31 | 何秋生 | Water-based nano-oxide coolant for cooling high-power central processing unit (CPU) chip and operation system |
| CN103045180A (en) * | 2012-12-26 | 2013-04-17 | 青岛科技大学 | Low-conductivity nanofluid and preparation method thereof |
| CN106634861A (en) * | 2016-10-12 | 2017-05-10 | 哈尔滨工业大学 | Preparation method of low-concentration silicon dioxide nano fluid based on water/ethylene glycol |
| CN112457822A (en) * | 2020-11-04 | 2021-03-09 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Fuel cell cooling liquid and preparation method thereof |
| CN112457823A (en) * | 2020-11-04 | 2021-03-09 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Refrigerating fluid for fuel cell power generation module and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| I.A. ZAKARIA: "Experimental analysis of SiO2-Distilled water nanofluids in a Polymer Electrolyte Membrane fuel cell parallel channel cooling plate", 《INTERNATIONAL JOURNAL OF HYDROGEN ENERGY》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114100392A (en) * | 2021-11-15 | 2022-03-01 | 郝建强 | Preparation method of non-contact hydrogen fuel cell cooling liquid |
| CN117447973A (en) * | 2023-12-22 | 2024-01-26 | 纯牌科技股份有限公司 | Cooling liquid for electric automobile and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4842420B2 (en) | Cooling liquid, cooling liquid sealing method and cooling system | |
| CN113528096A (en) | Efficient heat transfer hydrogen fuel cell cooling liquid | |
| EP1807478B1 (en) | Corrosion inhibitors, corrosion inhibiting heat transfer fluids, and the use thereof | |
| TW574356B (en) | Coolant concentrate composition for coolant systems where low electrical conductivity required | |
| EP2228861A2 (en) | Treated ion exchange resins, method of making, assemblies and heat transfer systems containing the same, and method of use | |
| CN107346807A (en) | Long-life soft-package battery heat control device | |
| JP2014203739A (en) | Coolant for fuel cell | |
| CN111621266A (en) | Cooling liquid for electric automobile and preparation process thereof | |
| WO2013042839A1 (en) | Composition containing hydroquinone or quinoline for fuel cell coolant | |
| KR20120101507A (en) | Colloidal dispersion of aluminium oxide | |
| CN113969141A (en) | Immersion type cooling liquid for IT communication equipment and preparation method thereof | |
| CN109148915A (en) | A kind of fuel cell coolant liquid and its application | |
| CN116004193A (en) | Hydrogen fuel cell cooling liquid with high heat transfer coefficient and preparation method thereof | |
| CN114525036B (en) | Wave-absorbing thermal gasket and preparation method thereof | |
| JP2004143265A (en) | Cooling liquid, method for sealing cooling liquid and cooling system | |
| CN115785913A (en) | Function separation type hydrogen fuel cell cooling liquid | |
| CN109585877A (en) | Cooling system and heat dissipating method for fuel cell | |
| CN113429945A (en) | Fuel cell cooling liquid and preparation method thereof | |
| WO2004091028A1 (en) | Cooling liquid composition for fuel cell | |
| Zakaria et al. | Nanofluid as cooling medium in polymer electrolyte membrane (PEM) fuel cell: a study on potentials and possibilities | |
| JP2010260947A (en) | Coolant composition | |
| CN116463632A (en) | Corrosion inhibition complexing agent for hydrogen fuel cell cooling liquid and preparation method and application thereof | |
| CN117070199A (en) | Thermal management liquid | |
| CN117551428A (en) | Antifreezing cooling liquid and preparation method thereof | |
| CN115873565A (en) | Immersed cooling liquid for lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20211022 |