CN101209668A - A heat dissipation method for a fuel cell car - Google Patents
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 52
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Abstract
本发明涉及一种燃料电池轿车用的散热方法，该方法包括散热器、冷却散热流体的设计，其特征在于，所述的散热器包括一个主散热器，多个异形散热器，主散热器位于车头行车中空气形成正压的部位，多个异形散热器分别分散于车体的其他可用空间，各异形散热器之间采用串联或并联连接并连接到主散热器上；所述的冷却散热流体包括一种单独或多种混合的冷却散热流体材料，比热大于1，能吸收并储存大量的潜热，该冷却散热流体流经运行的燃料电池发动机时发生相变吸收热量，流出电堆后逆相变将该热量散发到环境中去。与现有技术相比，本发明具有散热效果好、运行稳定等优点。
The invention relates to a heat dissipation method for a fuel cell car. The method includes the design of a radiator and a cooling fluid. It is characterized in that the radiator includes a main radiator and a plurality of special-shaped radiators. In the part where the air forms a positive pressure in the front of the vehicle, multiple special-shaped radiators are respectively scattered in other available spaces of the car body, and the various special-shaped radiators are connected in series or in parallel and connected to the main radiator; the cooling and heat dissipation fluid It includes a single or multiple mixed cooling and heat dissipation fluid materials with a specific heat greater than 1, which can absorb and store a large amount of latent heat. When the cooling and heat dissipation fluid flows through a running fuel cell engine, it undergoes a phase change to absorb heat, and when it flows out of the stack, it reverses The phase change dissipates this heat to the environment. Compared with the prior art, the invention has the advantages of good heat dissipation effect, stable operation and the like.
Description
技术领域 technical field
本发明涉及燃料电池的辅助设备，尤其涉及一种燃料电池轿车用的散热方法。The invention relates to auxiliary equipment of a fuel cell, in particular to a heat dissipation method for a fuel cell car.
背景技术 Background technique
电化学燃料电池是一种能够将氢燃料及氧化剂转化成电能及反应产物的装置。该装置的内部核心部件是膜电极(Membrane Electrode Assembly，简称MEA)，膜电极(MEA)由一张质子交换膜、膜两面夹两张多孔性的可导电的材料，如碳纸组成。在膜与碳纸的两边界面上含有均匀细小分散的引发电化学反应的催化剂，如金属铂催化剂。膜电极两边可用导电物体将发生电化学反应过程中生成的电子，通过外电路引出，构成电流回路。An electrochemical fuel cell is a device that converts hydrogen fuel and oxidant into electrical energy and reaction products. The internal core component of the device is the membrane electrode (Membrane Electrode Assembly, referred to as MEA). The membrane electrode (MEA) is composed of a proton exchange membrane and two porous conductive materials, such as carbon paper, sandwiched between the two sides of the membrane. On the two boundary surfaces of the membrane and the carbon paper, there are even and finely dispersed catalysts for initiating electrochemical reactions, such as metal platinum catalysts. Conductive objects can be used on both sides of the membrane electrode to draw the electrons generated during the electrochemical reaction through an external circuit to form a current loop.
在膜电极的阳极端，燃料可以通过渗透穿过多孔性扩散材料(碳纸)，并在催化剂表面上发生电化学反应，失去电子，形成正离子，正离子可通过迁移穿过质子交换膜，到达膜电极的另一端阴极端。在膜电极的阴极端，含有氧化剂(如氧气)的气体，如空气，通过渗透穿过多孔性扩散材料(碳纸)，并在催化剂表面上发生电化学反应得到电子，形成负离子。在阴极端形成的阴离子与阳极端迁移过来的正离子发生反应，形成反应产物。At the anode end of the membrane electrode, the fuel can permeate through the porous diffusion material (carbon paper), and an electrochemical reaction occurs on the surface of the catalyst, losing electrons and forming positive ions, which can migrate through the proton exchange membrane, Reach the cathode end of the other end of the membrane electrode. At the cathode end of the membrane electrode, a gas containing an oxidant (such as oxygen), such as air, penetrates through the porous diffusion material (carbon paper), and electrochemically reacts on the surface of the catalyst to obtain electrons to form negative ions. Anions formed at the cathode end react with positive ions migrating from the anode end to form reaction products.
在采用氢气为燃料，含有氧气的空气为氧化剂(或纯氧为氧化剂)的质子交换膜燃料电池中，燃料氢气在阳极区的催化电化学反应就产生了氢正离子(或叫质子)。质子交换膜帮助氢正离子从阳极区迁移到阴极区。除此之外，质子交换膜将含氢气燃料的气流与含氧的气流分隔开来，使它们不会相互混合而产生爆发式反应。In a proton exchange membrane fuel cell that uses hydrogen as fuel and air containing oxygen as the oxidant (or pure oxygen as the oxidant), the catalytic electrochemical reaction of fuel hydrogen in the anode region produces positive hydride ions (or protons). The proton exchange membrane facilitates the migration of positive hydride ions from the anode region to the cathode region. In addition, the proton exchange membrane separates the hydrogen-containing fuel gas stream from the oxygen-containing gas stream so that they do not mix with each other and cause an explosive reaction.
在阴极区，氧气在催化剂表面上得到电子，形成负离子，并与阳极区迁移过来的氢正离子反应，生成反应产物水。在采用氢气、空气(氧气)的质子交换膜燃料电池中，阳极反应与阴极反应可以用以下方程式表达：In the cathode area, oxygen gets electrons on the surface of the catalyst to form negative ions, and reacts with positive hydrogen ions migrated from the anode area to generate water as a reaction product. In a proton exchange membrane fuel cell using hydrogen and air (oxygen), the anode reaction and cathode reaction can be expressed by the following equation:
阳极反应：H2→2H++2eAnode reaction: H 2 → 2H + +2e
阴极反应：1/2O2+2H++2e→H2OCathode reaction: 1/2O 2 +2H + +2e→H 2 O
在典型的质子交换膜燃料电池中，膜电极(MEA)一般均放在两块导电的极板中间，每块导膜电极板与膜电极接触的表面通过压铸、冲压或机械铣刻，形成至少一条以上的导流槽。这些导膜电极板可以是金属材料的极板，也可以是石墨材料的极板。这些导膜电极板上的导流孔道与导流槽分别将燃料和氧化剂导入膜电极两边的阳极区与阴极区。在一个质子交换膜燃料电池单电池的构造中，只存在一个膜电极，膜电极两边分别是阳极燃料的导流极板与阴极氧化剂的导流极板。这些导流极板既作为电流集流板，也作为膜电极两边的机械支撑，导流极板上的导流槽又作为燃料与氧化剂进入阳极、阴极表面的通道，并作为带走燃料电池运行过程中生成的水的通道。In a typical proton exchange membrane fuel cell, the membrane electrode (MEA) is generally placed between two conductive plates, and the surface of each conductive membrane electrode plate in contact with the membrane electrode is formed by die-casting, stamping or mechanical milling to form at least More than one diversion groove. These conducting film electrode plates can be pole plates of metal material or graphite material. The diversion channels and diversion grooves on these conduction membrane electrode plates lead the fuel and oxidant into the anode region and the cathode region on both sides of the membrane electrode respectively. In the structure of a single proton exchange membrane fuel cell, there is only one membrane electrode, and the two sides of the membrane electrode are respectively the guide plate of the anode fuel and the guide plate of the cathode oxidant. These guide plates not only serve as current collector plates, but also as mechanical supports on both sides of the membrane electrode. The guide grooves on the guide plates serve as passages for fuel and oxidant to enter the anode and cathode surfaces, and run as a fuel cell. Channels of water generated during the process.
为了增大整个质子交换膜燃料电池的总功率，两个或两个以上的单电池通常可通过直叠的方式串联成电池组或通过平铺的方式联成电池组。在直叠、串联式的电池组中，一块极板的两面都可以有导流槽，其中一面可以作为一个膜电极的阳极导流面，而另一面又可作为另一个相邻膜电极的阴极导流面，这种极板叫做双极板。一连串的单电池通过一定方式连在一起而组成一个电池组。电池组通常通过前端板、后端板及拉杆紧固在一起成为一体。In order to increase the total power of the entire proton exchange membrane fuel cell, two or more single cells can usually be stacked in series to form a battery pack or connected in a tiled manner to form a battery pack. In direct-stacked and series-connected battery packs, there can be diversion grooves on both sides of a pole plate, one of which can be used as the anode diversion surface of one membrane electrode, and the other side can be used as the cathode of another adjacent membrane electrode. The diversion surface, this kind of plate is called a bipolar plate. A series of cells are connected together in a certain way to form a battery pack. The battery pack is usually fastened together by the front end plate, the rear end plate and the tie rods to form a whole.
一个典型电池组通常包括：(1)燃料及氧化剂气体的导流进口和导流通道，将燃料(如氢气、甲醇或由甲醇、天然气、汽油经重整后得到的富氢气体)和氧化剂(主要是氧气或空气)均匀地分布到各个阳极、阴极面的导流槽中；(2)冷却流体(如水)的进出口与导流通道，将冷却流体均匀分布到各个电池组内冷却通道中，将燃料电池内氢、氧电化学放热反应生成的热吸收并带出电池组后进行散热；(3)燃料与氧化剂气体的出口与相应的导流通道，燃料气体与氧化剂气体在排出时，可携带出燃料电池中生成的液、汽态的水。通常，将所有燃料、氧化剂、冷却流体的进出口都开在燃料电池组的一个端板上或两个端板上。A typical battery pack usually includes: (1) diversion inlet and diversion channel of fuel and oxidant gas, fuel (such as hydrogen, methanol or hydrogen-rich gas obtained by reforming methanol, natural gas, gasoline) and oxidant ( (mainly oxygen or air) is evenly distributed into the diversion grooves of each anode and cathode surface; (2) the inlet and outlet and diversion channels of the cooling fluid (such as water), and the cooling fluid is evenly distributed into the cooling channels in each battery pack , absorb the heat generated by the electrochemical exothermic reaction of hydrogen and oxygen in the fuel cell and take it out of the battery pack to dissipate heat; (3) The outlet of the fuel and oxidant gas and the corresponding guide channel, when the fuel gas and oxidant gas are discharged , can carry out the liquid and vapor state water generated in the fuel cell. Usually, the inlets and outlets of all fuels, oxidants, and cooling fluids are opened on one or both end plates of the fuel cell stack.
质子交换膜燃料电池可用作一切车、船等运载工具的动力系统，又可作手提式、移动式、固定式的发电装置。Proton exchange membrane fuel cells can be used as the power system of all vehicles, ships and other vehicles, and can also be used as portable, mobile and fixed power generation devices.
质子交换膜燃料电池一般用氢气或含富态氢或醇类作燃料。在用作车、船动力系统或移动式、固定式发电站时一般用空气作氧化剂。Proton exchange membrane fuel cells generally use hydrogen or rich hydrogen or alcohols as fuel. Air is generally used as the oxidant when it is used as a vehicle, ship power system or mobile or fixed power station.
质子交换膜燃料电池用作车、船动力系统或移动式、固定式发电站时，必须包括电池堆，燃料供应，空气供应，冷却散热，自动控制及电能输出各个部分。其中空气供应是必不可少。质子交换膜燃料电池中的电化学反应随着燃料、氧化剂空气的压力提高而加快。When the proton exchange membrane fuel cell is used as a vehicle, ship power system or a mobile or fixed power station, it must include battery stacks, fuel supply, air supply, cooling and heat dissipation, automatic control and power output. Where air supply is essential. The electrochemical reaction in the proton exchange membrane fuel cell is accelerated as the pressure of fuel, oxidant and air increases.
目前内燃机汽车散热器设于车头正前方，利用高速行车时强大的空气正压，迎风散热较快。但是燃料电池发动机的工作温度太低，与环境的温差太小，普通散热器散热面积太小，大量的热散不掉，从而导致燃料电池发动机烧坏。At present, the radiator of internal combustion engine automobiles is located directly in front of the front of the car, and the strong positive air pressure during high-speed driving is used to dissipate heat quickly against the wind. However, the operating temperature of the fuel cell engine is too low, the temperature difference with the environment is too small, and the heat dissipation area of the ordinary radiator is too small, so a large amount of heat cannot be dissipated, which will cause the fuel cell engine to burn out.
一般燃料电池发动机通常采用去离子水的作为冷却流体，但是当冬天室温降到0℃以下后，去离子水易结冰，无法在管道中流动，甚至可能破坏管道，夏天室温较高时，去离子水与发动机工作温度的温差太小，也无法达到散热效果。Generally, fuel cell engines usually use deionized water as the cooling fluid, but when the room temperature drops below 0°C in winter, the deionized water is easy to freeze, unable to flow in the pipeline, and may even damage the pipeline. The temperature difference between the ionized water and the engine operating temperature is too small, and the heat dissipation effect cannot be achieved.
发明内容 Contents of the invention
本发明的目的就是为了克服上述现有技术存在的缺陷而提供一种散热效果好、充分利用空间的燃料电池轿车用的散热方法。The object of the present invention is to provide a heat dissipation method for fuel cell cars with good heat dissipation effect and full use of space in order to overcome the above-mentioned defects in the prior art.
本发明的目的可以通过以下技术方案来实现：一种燃料电池轿车用的散热方法，其特征在于，该方法包括散热器、冷却散热流体的设计，其特征在于，所述的散热器包括一个主散热器，多个异形散热器，主散热器位于车头行车中空气形成正压的部位，多个异形散热器分别分散于车体的其他可用空间，各异形散热器之间采用串联或并联连接并连接到主散热器上；所述的冷却散热流体包括一种单独或多种混合的冷却散热流体材料，比热大于1，能吸收并储存大量的潜热，该冷却散热流体流经运行的燃料电池发动机时发生相变吸收热量，流出电堆后逆相变将该热量散发到环境中去。The purpose of the present invention can be achieved through the following technical solutions: a heat dissipation method for fuel cell cars, characterized in that the method includes a radiator and a design for cooling the heat dissipation fluid, and is characterized in that the radiator includes a main Radiator, multiple special-shaped radiators, the main radiator is located at the part where the air forms positive pressure in the front of the car, and multiple special-shaped radiators are respectively scattered in other available spaces of the car body, and the various special-shaped radiators are connected in series or in parallel. Connected to the main radiator; said cooling fluid includes a single or mixed cooling fluid material with a specific heat greater than 1, capable of absorbing and storing a large amount of latent heat, and the cooling fluid flows through the fuel cell in operation When the engine undergoes a phase change to absorb heat, the reverse phase change will dissipate the heat to the environment after flowing out of the stack.
所述的车体的其他可用空间包括车体前舱、后舱、底盘。The other available spaces of the car body include the front compartment, the rear compartment and the chassis of the car body.
所述的异形散热器包括2～10个，分别位于车体前舱两侧、车体后舱两侧或车体底盘前部、中部或后部。The special-shaped radiators include 2 to 10, which are respectively located on both sides of the front compartment of the vehicle body, both sides of the rear compartment of the vehicle body, or the front, middle or rear of the chassis of the vehicle body.
所述的异形散热器有6个，分别位于前舱两个、底盘中部两个、后舱两个，先分别将前舱、底盘、后舱的两个异形散热器并联，再相互串联，并连接到主散热器上或者先分别将前舱、底盘、后舱的两个异形散热器串联，再相互并联，并连接到主散热器上或者全部串联连接。There are 6 special-shaped radiators, which are respectively located in two in the front cabin, two in the middle of the chassis, and two in the rear cabin. Connect to the main radiator or first connect the two special-shaped radiators of the front cabin, chassis and rear cabin in series, and then connect them in parallel to each other, and connect them to the main radiator or connect them all in series.
所述的异形散热器有4个，分别位于前舱两个、底盘中部两个，进行串联连接或串并连混合连接。There are four special-shaped radiators, two located in the front cabin and two in the middle of the chassis, connected in series or mixed in series and parallel.
所述的异形散热器的形状大小与其所在的位置空间相匹配。The shape and size of the special-shaped radiator match the space where it is located.
所述的冷却散热流体由在常温下为分散性固体纳米小颗粒与其他冷却流体如水、乙二醇等混合组成，全面凝固点低于-40℃，当温度达到燃料电池的运行温度时，冷却散热流体吸收热量，固体纳米小颗粒产生从固态到液态的相变。The cooling and heat dissipation fluid is composed of dispersed solid nanoparticles mixed with other cooling fluids such as water and ethylene glycol at room temperature, and its overall freezing point is lower than -40°C. The fluid absorbs heat, and the solid nanoparticles create a phase transition from solid to liquid.
所述的冷却散热流体在常温下为第一种液相，当温度达到燃料电池的运行温度时，吸收热量，产生从第一种液相到第二种液相的变化。The cooling and heat dissipation fluid is in the first liquid phase at normal temperature, and when the temperature reaches the operating temperature of the fuel cell, it absorbs heat and changes from the first liquid phase to the second liquid phase.
所述的冷却散热流体选自液晶、油脂、乙二醇，分散颗粒非常小的金属、合金、复合相变储热材料等中的一种或几种的组合。The cooling and heat dissipation fluid is selected from one or a combination of liquid crystals, grease, ethylene glycol, metals with very small dispersed particles, alloys, and composite phase-change heat storage materials.
所述的冷却散热流体中的液态散热材料可单独作为散热的冷却流体，也可与去离子水等其他液态流体混合共同作为冷却流体；所述的冷却散热流体中的固态散热材料可与去离子水等液态流体混合共同作为冷却流体。The liquid heat dissipation material in the cooling heat dissipation fluid can be used alone as a heat dissipation cooling fluid, or can be mixed with other liquid fluids such as deionized water as a cooling fluid; the solid heat dissipation material in the cooling heat dissipation fluid can be combined with deionized water Liquid fluids such as water mix together as a cooling fluid.
与现有技术相比，本发明的燃料电池发动机轿车设置了主散热器和异形散热器，并改变了冷却散热流体，利用材料相变达到散热目的，效果好，充分的利用了可用空间，而且不受环境影响，四季皆可运行。Compared with the prior art, the fuel cell engine car of the present invention is provided with a main radiator and a special-shaped radiator, and the cooling and heat dissipation fluid is changed, and the phase change of the material is used to achieve the purpose of heat dissipation, the effect is good, and the available space is fully utilized. It is not affected by the environment and can be operated in all seasons.
附图说明 Description of drawings
图1为本发明实施例1的结构示意图；Fig. 1 is the structural representation of embodiment 1 of the present invention;
图2为本发明实施例1中的散热器串联结构示意图；Fig. 2 is a schematic diagram of the series structure of radiators in Embodiment 1 of the present invention;
图3为本发明实施例2的结构示意图。Fig. 3 is a schematic structural diagram of Embodiment 2 of the present invention.
具体实施方式 Detailed ways
下面将结合附图对本发明作进一步说明。The present invention will be further described below in conjunction with accompanying drawing.
实施例1Example 1
如图1、2所示，一种60KW的燃料电池轿车用的散热方法，该方法包括散热器、冷却散热流体，所述的散热器包括一个主散热器1，4个异形散热器，主散热器位于车头行车中空气形成正压的部位，4个异形散热器分别分散于车体分别位于前舱两个2、3、底盘中部两个4、5，将各异形散热器与主散热器串联连接，由电堆处流出的热的冷却流体从主散热器1流出后流进散热器3，再流经串联连接的5、4、2回到主散热器1，经此循环冷却后的流体流回电堆继续带走电堆的热量；所述的冷却散热流体为液晶材料，燃料电池发动机在运行时电堆温度为65℃，冷却流体管中的液晶材料流经电堆时吸收热量发生相变，流出电堆后发生逆相变放出热量。As shown in Figures 1 and 2, a heat dissipation method for a 60KW fuel cell car, the method includes a radiator, a cooling heat dissipation fluid, and the radiator includes a main radiator 1, 4 special-shaped radiators, the main radiator The radiator is located at the part where the air forms a positive pressure in the front of the car, and the four special-shaped radiators are respectively scattered in the car body, respectively located in the two 2, 3 in the front cabin, and two 4, 5 in the middle of the chassis, and connect the various radiators in series with the main radiator Connected, the hot cooling fluid flowing out from the electric stack flows out from the main radiator 1 and then flows into the radiator 3, and then flows through the series connection 5, 4, 2 and returns to the main radiator 1, and the fluid cooled by this cycle Flowing back to the electric stack continues to take away the heat of the electric stack; the cooling fluid is a liquid crystal material, the temperature of the electric stack is 65°C when the fuel cell engine is running, and the liquid crystal material in the cooling fluid pipe absorbs heat when it flows through the electric stack to generate phase After flowing out of the stack, a reverse phase change occurs and heat is released.
实施例2Example 2
如图3所示，参见图1，一种60KW的燃料电池轿车用的散热方法，该方法包括散热器、冷却散热流体，所述的散热器包括一个主散热器1，4个异形散热器，主散热器位于车头行车中空气形成正压的部位，4个异形散热器分别分散于车体分别位于前舱两个2、3、底盘中部两个4、5，将各异形散热器并联再与主散热器串联连接，由电堆处流出的热的冷却流体从主散热器1流出后从管道6分别流进散热器2、3、4、5的入口，散热后再从散热器2、3、4、5的出口流出经流出管7回到主散热器1，经此循环冷却后的流体流回电堆继续带走电堆的热量；所述的冷却散热流体为油脂材料，燃料电池发动机在运行时电堆温度为70℃，这种油脂材料的相变温度为70℃，该油脂材料常温下为第一液相，从冷却流体管流经电堆时吸收热量发生相变，变为第二液相，流出电堆后发生逆相变放出热量，变为第一液相。As shown in Figure 3, referring to Figure 1, a heat dissipation method for a 60KW fuel cell car, the method includes a radiator, a cooling cooling fluid, and the radiator includes a main radiator 1, 4 special-shaped radiators, The main radiator is located at the part where the air forms a positive pressure in the front of the car, and the four special-shaped radiators are respectively scattered in the car body, respectively located in the two 2 and 3 in the front cabin, and the two 4 and 5 in the middle of the chassis. The main radiators are connected in series, and the hot cooling fluid flowing out from the electric stack flows out from the main radiator 1 and then flows into the inlets of radiators 2, 3, 4, and 5 from the pipe 6, and then flows from the radiators 2, 3 after dissipating heat. , The outlets of 4 and 5 flow out and return to the main radiator 1 through the outflow pipe 7, and the fluid cooled by this cycle flows back to the electric stack to continue to take away the heat of the electric stack; the cooling and heat dissipation fluid is a grease material, and the fuel cell engine The stack temperature is 70°C during operation, and the phase transition temperature of this grease material is 70°C. The grease material is in the first liquid phase at room temperature, and when the cooling fluid tube flows through the stack, it absorbs heat and undergoes a phase transition to become the second liquid phase. The second liquid phase, after flowing out of the stack, undergoes a reverse phase transition and releases heat, becoming the first liquid phase.
实施例3Example 3
参见图1～3，一种60KW的燃料电池轿车用的散热方法，该方法包括散热器、冷却散热流体，所述的散热器包括一个主散热器，6个异形散热器，分别位于前舱两个、底盘中部两个、后舱两个，先分别将前舱、底盘、后舱的两个异形散热器并联，再相互串联，并连接到主散热器上或者先分别将前舱、底盘、后舱的两个异形散热器串联，再相互并联，并连接到主散热器上或者全部串联连接，这些散热器可根据各自所在位置的大小和形状来设计。Referring to Fig. 1～3, a kind of heat radiation method that fuel cell car of 60KW is used, this method comprises radiator, cooling radiating fluid, described radiator comprises a main radiator, 6 special-shaped radiators, are respectively located at the two sides of the front cabin. One, two in the middle of the chassis, and two in the rear cabin, first connect the two special-shaped radiators in the front cabin, chassis, and rear cabin in parallel, then connect them in series, and connect them to the main radiator or first connect the front cabin, chassis, and rear cabin respectively. The two special-shaped radiators in the rear cabin are connected in series, and then connected in parallel to each other, and connected to the main radiator or all connected in series. These radiators can be designed according to the size and shape of their respective locations.
所述的冷却散热流体在常温下为固体纳米小颗粒金属与其他冷却流体如水或乙二醇等混合组成，当温度达到燃料电池的运行温度时，冷却散热流体吸收热量，固体纳米小颗粒产生从固态到液态的相变。The cooling and heat dissipation fluid is composed of solid nano-particle metal mixed with other cooling fluids such as water or ethylene glycol at normal temperature. When the temperature reaches the operating temperature of the fuel cell, the cooling and heat dissipation fluid absorbs heat, and the solid nano-particles are generated from Solid to liquid phase transition.
冷却散热流体凝固点低于-40℃，还可以采用在常温下为第一种液相，当温度达到燃料电池的运行温度时，吸收热量，产生从第一种液相到第二种液相的变化这样的流体。也可以自液晶、油脂、乙二醇、金属、合金、复合相变储热材料等材料中选取一种或几种的组合作为冷却散热流体。The freezing point of the cooling and heat dissipation fluid is lower than -40°C, and it can also be the first liquid phase at normal temperature. When the temperature reaches the operating temperature of the fuel cell, it absorbs heat and generates a liquid phase from the first liquid phase to the second liquid phase. Change such fluids. It is also possible to select one or a combination of several materials from liquid crystal, grease, ethylene glycol, metal, alloy, composite phase change heat storage material and the like as the cooling and heat dissipation fluid.
所述的冷却散热流体可单独作为散热的冷却流体，也可与去离子水混合共同作为冷却流体。The cooling and radiating fluid can be used alone as a cooling fluid for radiating heat, or can be mixed with deionized water as a cooling fluid.
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| WO2018133276A1 (en) * | 2017-01-19 | 2018-07-26 | 清华大学深圳研究生院 | Electric car |
| CN112151830A (en) * | 2020-09-30 | 2020-12-29 | 武汉理工大学 | A fuel cell stack cooling system |
| CN114899443A (en) * | 2022-06-16 | 2022-08-12 | 中国北方车辆研究所 | A fuel cell heat exchange device based on flash cooling technology |
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| US3539397A (en) * | 1967-05-23 | 1970-11-10 | United Aircraft Corp | Fuel cell with temperature control |
| CN2148181Y (en) * | 1993-03-05 | 1993-12-01 | 甘忠杰 | Circulation radiator for car |
| US7906241B2 (en) * | 2003-10-03 | 2011-03-15 | Honda Motor Co., Ltd. | Fuel cell system and fuel cell automobile vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018133276A1 (en) * | 2017-01-19 | 2018-07-26 | 清华大学深圳研究生院 | Electric car |
| CN112151830A (en) * | 2020-09-30 | 2020-12-29 | 武汉理工大学 | A fuel cell stack cooling system |
| CN114899443A (en) * | 2022-06-16 | 2022-08-12 | 中国北方车辆研究所 | A fuel cell heat exchange device based on flash cooling technology |
| CN114899443B (en) * | 2022-06-16 | 2024-02-02 | 中国北方车辆研究所 | A fuel cell heat exchange device based on flash cooling technology |
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