System and method for testing heat dissipation performance of hydrogen fuel cell radiator

Abstract

The invention provides a system and a method for testing the heat dissipation performance of a hydrogen fuel cell radiator. The system comprises a heat source, a water pump and a to-be-tested radiator which are sequentially connected in series through a pipeline to form a cooling liquid circulation loop; the first cooling liquid thermometer and the second cooling liquid thermometer are installed at the cooling liquid inlet end and the cooling liquid outlet end of the radiator to be tested respectively. The environment thermometer is used for collecting a test environment temperature; the cooling liquid flow meter is installed on the cooling liquid circulation loop and used for collecting the flow of cooling liquid. The system controller is used for controlling the heating power of the heat source, the rotating speed of the water pump and the rotating speed of the to-be-tested radiator and collecting the heating power, the environment temperature, the cooling liquid flow, the cooling liquid inlet temperature and the cooling liquid outlet temperature. And the heat dissipation capacity calculation module is electrically connected with the system controller and is used for determining the heat dissipation capacity of the radiator under each working condition based on the collected data. According to the technical scheme, operation is easy and convenient, data are accurate, and practicability is high.

Description

Technical Field

[0001] This application relates to the field of heat dissipation equipment technology for hydrogen fuel cell systems, and in particular to a system and method for testing the heat dissipation performance of a hydrogen fuel cell radiator. Background Technology

[0002] During operation, a proton exchange membrane hydrogen fuel cell converts some of the chemical energy from the reaction of hydrogen and air into electrical energy and the remainder into heat energy. To ensure the battery's performance and lifespan, its operating temperature needs to be controlled between 60-80℃. Therefore, a heat sink is required to dissipate the excess heat generated during operation. The selection of the heat sink is generally determined based on the fuel cell's maximum power and efficiency, and its heat dissipation capacity should meet the fuel cell's maximum heat generation requirements.

[0003] In existing technologies, only pressure curves corresponding to airflow at different radiator speeds are typically available. This data only reflects the hydrodynamic characteristics of the radiator and cannot directly relate to the actual operating requirements of hydrogen fuel cells. Specifically, the heat generated by a hydrogen fuel cell changes dynamically under different power conditions, and the required radiator speed must be adjusted in real time to achieve precise heat dissipation. However, because existing radiator performance data lacks the correlation between "speed-coolant flow rate-gas-liquid temperature difference-heat dissipation power," it is impossible to directly determine the optimal operating speed of the radiator under different fuel cell power levels using existing data. This situation leads to many problems in practical applications: on the one hand, improper radiator speed selection may result in insufficient fuel cell water temperature control accuracy, affecting battery performance and even shortening its lifespan; on the other hand, radiator over-operation or under-operation is prone to occur. Over-operation increases system energy consumption, while under-operation fails to meet heat dissipation requirements, severely restricting the improvement of thermal management efficiency and energy consumption optimization of hydrogen fuel cell systems. Therefore, there is an urgent need to propose a testing scheme that can obtain multi-dimensional performance parameters of the radiator and directly serve the thermal management of fuel cell systems. Summary of the Invention

[0004] This application provides a system and method for testing the heat dissipation performance of a hydrogen fuel cell radiator, which at least solves the technical problem that the optimal operating speed of the radiator under different fuel cell power cannot be determined directly by querying existing data, resulting in low efficiency and accuracy.

[0005] The first aspect of this application provides a heat dissipation performance testing system for a hydrogen fuel cell radiator. The system includes: a heat source, a water pump, a radiator under test, an ambient thermometer, a coolant flow meter, a first coolant thermometer, a second coolant thermometer, a system controller, and a heat dissipation capacity calculation module.

[0006] The heat source, water pump, and radiator under test are connected in series through pipes to form a coolant circulation loop.

[0007] The first coolant thermometer and the second coolant thermometer are respectively installed at the coolant inlet and outlet of the radiator to be tested, and are used to collect the coolant inlet temperature and coolant outlet temperature.

[0008] The ambient temperature meter is used to collect the ambient temperature during testing;

[0009] The coolant flow meter is installed on the coolant circulation loop to collect the coolant flow rate;

[0010] The system controller is connected to the heat source, water pump, radiator under test, ambient thermometer, coolant flow meter, first coolant thermometer, and second coolant thermometer, respectively, and is used to control the heating power of the heat source, the speed of the water pump, the speed of the radiator under test, and to collect the heating power, ambient temperature, coolant flow rate, coolant inlet temperature, and coolant outlet temperature.

[0011] The heat dissipation capacity calculation module is electrically connected to the system controller and is used to calculate the heat dissipation of the radiator under test under various operating conditions based on the heat generation power, ambient temperature, coolant flow rate, coolant inlet temperature, coolant outlet temperature and preset formula.

[0012] Preferably, the system further includes: a generation module;

[0013] The generation module is used to construct a map diagram with the gas-liquid temperature difference as the horizontal axis and the heat dissipation as the vertical axis, under the rotational speed of each radiator.

[0014] Furthermore, the calculation formula of the preset formula is as follows:

[0015] Q = CpL(T1-T2) / 1000

[0016] In the formula, Q is the heat dissipation of the radiator, Cp is the specific heat capacity of the coolant, L is the flow rate of the coolant, T1 is the inlet temperature of the coolant, and T2 is the outlet temperature of the coolant.

[0017] Furthermore, the heat source is an electric heating device or a hydrogen fuel cell;

[0018] When the heat source is a hydrogen fuel cell, the system controller is also used to collect the voltage and current data of the hydrogen fuel cell and transmit them to the heat dissipation capacity calculation module.

[0019] The heat dissipation capacity calculation module is also used to calculate the heat generation power of the hydrogen fuel cell based on the voltage and current data of the hydrogen fuel cell.

[0020] Furthermore, the formula for calculating the heating power of the hydrogen fuel cell is as follows:

[0021] P = n * I * (1.229 - U) / 1000

[0022] In the formula, P is the heating power, n is the number of hydrogen fuel cell modules, I is the current of the hydrogen fuel cell, and U is the voltage of the hydrogen fuel cell.

[0023] The second aspect of this application provides a method for testing the heat dissipation performance of a hydrogen fuel cell radiator, including:

[0024] S1: The system controller starts the power supply to the water pump, heat source, radiator under test, coolant flow meter, first coolant thermometer, and second coolant thermometer, so that the test system enters the working state.

[0025] S2: Set the water pump speed to ω via the system controller;

[0026] S3: Set the heating power of the heat source to P through the system controller;

[0027] S4: Set the rotational speed of the heatsink under test to r via the system controller;

[0028] S5: The system controller controls the coolant flow meter, the first coolant thermometer, the second coolant thermometer, and the ambient thermometer to collect data at sampling time intervals t, obtain the coolant flow rate, coolant inlet temperature, coolant outlet temperature, and ambient temperature, and transmit the collected data to the heat dissipation capacity calculation module. The heat dissipation capacity calculation module calculates the heat dissipation of the radiator under test under the current operating conditions based on a preset formula.

[0029] S6: Keep the water pump speed ω and the heat source power P constant, change the speed r of the radiator under test through the system controller, repeat steps S4-S5 until r covers all selected points within the range of radiator speed, and obtain the radiator heat dissipation capacity data corresponding to each radiator speed and each gas-liquid temperature difference under the current coolant flow rate. The gas-liquid temperature difference is the difference between the radiator coolant inlet temperature and the ambient temperature.

[0030] S7: Change the water pump speed ω through the system controller, and repeat steps S2-S6 until ω covers all selected points within the water pump speed range to obtain the heat dissipation of the radiator under various speeds and gas-liquid temperature differences at various coolant flow rates.

[0031] Preferably, the heating power is taken as ±5% of the maximum heat dissipation capacity of the radiator;

[0032] The sampling time interval t is 1 second.

[0033] Furthermore, the method also includes:

[0034] Using the gas-liquid temperature difference as the horizontal axis and the heat dissipation as the vertical axis, a map is constructed for each radiator's rotational speed.

[0035] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the method described in the first aspect embodiment.

[0036] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the method described in the first aspect.

[0037] The technical solutions provided by the embodiments of this application have at least the following beneficial effects:

[0038] This application proposes a system and method for testing the heat dissipation performance of a hydrogen fuel cell radiator. The system includes: a heat source, a water pump, a radiator under test, an ambient thermometer, a coolant flow meter, a first coolant thermometer, a second coolant thermometer, a system controller, and a heat dissipation capacity calculation module. The heat source, water pump, and radiator under test are connected in series via pipelines to form a coolant circulation loop. The first and second coolant thermometers are respectively installed at the coolant inlet and outlet ends of the radiator under test to collect the coolant inlet and outlet temperatures. The ambient thermometer is used to collect the ambient temperature. The coolant flow meter is installed on the radiator under test. In the liquid circulation loop, a device is used to collect coolant flow rate. The system controller is connected to the heat source, water pump, radiator under test, ambient thermometer, coolant flow meter, first coolant thermometer, and second coolant thermometer. It controls the heat generation power of the heat source, the speed of the water pump, and the speed of the radiator under test, and collects heat generation power, ambient temperature, coolant flow rate, coolant inlet temperature, and coolant outlet temperature. The heat dissipation capacity calculation module is electrically connected to the system controller and calculates the heat dissipation of the radiator under test under various operating conditions based on the heat generation power, ambient temperature, coolant flow rate, coolant inlet temperature, coolant outlet temperature, and a preset formula. The technical solution proposed in this application is simple to operate, provides accurate data, and is highly practical.

[0039] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0040] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0041] Figure 1This is a first structural diagram of a hydrogen fuel cell radiator heat dissipation performance testing system according to an embodiment of this application;

[0042] Figure 2 This is a second structural diagram of a hydrogen fuel cell radiator heat dissipation performance testing system according to an embodiment of this application;

[0043] Figure 3 This is a structural diagram of a hydrogen fuel cell radiator heat dissipation performance testing system according to an embodiment of this application, where the heat source is an electrically heated device.

[0044] Figure 4 This is a structural diagram of a hydrogen fuel cell radiator heat dissipation performance testing system according to an embodiment of this application, where the heat source is a hydrogen fuel cell.

[0045] Figure 5 This is a flowchart illustrating a method for testing the heat dissipation performance of a hydrogen fuel cell radiator according to an embodiment of this application;

[0046] Figure 6 This is a map diagram showing the rotational speeds of various radiators according to one embodiment of this application;

[0047] Figure Labels

[0048] Heat source 1, water pump 2, radiator under test 3, ambient thermometer 4, coolant flow meter 5, first coolant thermometer 6, second coolant thermometer 7, system controller 8, heat dissipation capacity calculation module 9, generation module 10. Detailed Implementation

[0049] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0050] This application discloses a system and method for testing the heat dissipation performance of a hydrogen fuel cell radiator. The system includes: a heat source, a water pump, a radiator under test, an ambient thermometer, a coolant flow meter, a first coolant thermometer, a second coolant thermometer, a system controller, and a heat dissipation capacity calculation module. The heat source, water pump, and radiator under test are connected in series via pipelines to form a coolant circulation loop. The first and second coolant thermometers are respectively installed at the coolant inlet and outlet ends of the radiator under test to collect the coolant inlet and outlet temperatures. The ambient thermometer is used to collect the ambient temperature. The coolant flow meter is installed on the radiator under test. In the liquid circulation loop, a device is used to collect coolant flow rate. The system controller is connected to the heat source, water pump, radiator under test, ambient thermometer, coolant flow meter, first coolant thermometer, and second coolant thermometer. It controls the heat generation power of the heat source, the speed of the water pump, and the speed of the radiator under test, and collects heat generation power, ambient temperature, coolant flow rate, coolant inlet temperature, and coolant outlet temperature. The heat dissipation capacity calculation module is electrically connected to the system controller and calculates the heat dissipation of the radiator under test under various operating conditions based on the heat generation power, ambient temperature, coolant flow rate, coolant inlet temperature, coolant outlet temperature, and a preset formula. The technical solution proposed in this application is simple to operate, provides accurate data, and is highly practical.

[0051] The following description, with reference to the accompanying drawings, illustrates a hydrogen fuel cell radiator heat dissipation performance testing system and method according to an embodiment of this application.

[0052] Example 1

[0053] Figure 1 This is a structural diagram of a heat dissipation performance testing system for a hydrogen fuel cell radiator according to an embodiment of this application, as shown below. Figure 1 As shown, the system includes: a heat source 1, a water pump 2, a radiator under test 3, an ambient thermometer 4, a coolant flow meter 5, a first coolant thermometer 6, a second coolant thermometer 7, a system controller 8, and a heat dissipation capacity calculation module 9.

[0054] The heat source 1, water pump 2, and radiator under test 3 are connected in series through pipelines to form a coolant circulation loop.

[0055] The first coolant thermometer 6 and the second coolant thermometer 7 are respectively installed at the coolant inlet and outlet of the radiator 3 under test, and are used to collect the coolant inlet temperature and coolant outlet temperature.

[0056] The ambient temperature meter 4 is used to collect the ambient temperature during testing;

[0057] The coolant flow meter 5 is installed on the coolant circulation loop to collect the coolant flow rate;

[0058] The system controller 8 is connected to the heat source 1, water pump 2, radiator under test 3, ambient thermometer 4, coolant flow meter 5, first coolant thermometer 6, and second coolant thermometer 7 respectively. It is used to control the heating power of the heat source, the speed of the water pump, the speed of the radiator under test, and to collect the heating power, ambient temperature, coolant flow rate, coolant inlet temperature, and coolant outlet temperature.

[0059] The heat dissipation capacity calculation module 9 is electrically connected to the system controller 8 and is used to calculate the heat dissipation of the radiator under test under various operating conditions based on the heat generation power, ambient temperature, coolant flow rate, coolant inlet temperature, coolant outlet temperature and preset formula.

[0060] It should be noted that, Figure 1 This is merely a schematic diagram of the heat dissipation performance testing system for hydrogen fuel cell radiators in this application, and does not limit the structure of the heat dissipation performance testing system for hydrogen fuel cell radiators in this application.

[0061] In the embodiments disclosed herein, such as Figure 2 As shown, the system further includes: a generation module 10;

[0062] The generation module 10 is used to construct a Map diagram with the gas-liquid temperature difference as the horizontal axis and the heat dissipation as the vertical axis, under the rotational speed of each radiator.

[0063] In this embodiment of the disclosure, the calculation formula of the preset formula is as follows:

[0064] Q = CpL(T1-T2) / 1000

[0065] In the formula, Q is the heat dissipation of the radiator, Cp is the specific heat capacity of the coolant, L is the flow rate of the coolant, T1 is the inlet temperature of the coolant, and T2 is the outlet temperature of the coolant.

[0066] In this embodiment of the disclosure, the heat source 1 can be an electric heating device or a hydrogen fuel cell;

[0067] Wherein, when the heat source 1 is an electric heating device, the system is as follows: Figure 3 As shown;

[0068] When the heat source 1 is a hydrogen fuel cell, the system is as follows: Figure 4 As shown.

[0069] It should be noted that when the heat source 1 is a hydrogen fuel cell, the system controller 8 is also used to collect the voltage and current data of the hydrogen fuel cell and transmit them to the heat dissipation capacity calculation module 9.

[0070] The heat dissipation capacity calculation module 9 is also used to calculate the heat generation power of the hydrogen fuel cell based on the voltage and current data of the hydrogen fuel cell.

[0071] The formula for calculating the heating power of the hydrogen fuel cell is as follows:

[0072] P = n * I * (1.229 - U) / 1000

[0073] In the formula, P is the heating power, n is the number of hydrogen fuel cell modules, I is the current of the hydrogen fuel cell, and U is the voltage of the hydrogen fuel cell.

[0074] In summary, the hydrogen fuel cell radiator heat dissipation performance testing system proposed in this embodiment can obtain data that can be quickly adapted to the heat dissipation capacity of the fuel cell, improve the fuel cell water temperature control efficiency, obtain the optimal radiator operating speed, reduce radiator operating energy consumption, and achieve the goals of simple operation, accurate data, and strong practicality.

[0075] Based on the hydrogen fuel cell radiator heat dissipation performance testing system proposed in the above embodiments, this application also proposes a method for testing the heat dissipation performance of a hydrogen fuel cell radiator, such as... Figure 5 As shown, the method includes:

[0076] S1: The system controller starts the power supply to the water pump, heat source, radiator under test, coolant flow meter, first coolant thermometer, and second coolant thermometer, so that the test system enters the working state.

[0077] S2: Set the water pump speed to ω via the system controller;

[0078] S3: Set the heating power of the heat source to P through the system controller;

[0079] S4: Set the rotational speed of the heatsink under test to r via the system controller;

[0080] S5: The system controller controls the coolant flow meter, the first coolant thermometer, the second coolant thermometer, and the ambient thermometer to collect data at sampling time intervals t, obtain the coolant flow rate, coolant inlet temperature, coolant outlet temperature, and ambient temperature, and transmit the collected data to the heat dissipation capacity calculation module. The heat dissipation capacity calculation module calculates the heat dissipation of the radiator under test under the current operating conditions based on a preset formula.

[0081] S6: Keep the water pump speed ω and the heat source heating power P constant, change the speed r of the radiator under test through the system controller, repeat steps S4-S5 until r covers all selected points within the range of radiator speed, and obtain the radiator heat dissipation capacity data corresponding to each radiator speed and each gas-liquid temperature difference under the current coolant flow rate. The gas-liquid temperature difference is the difference between the radiator coolant inlet temperature and the ambient temperature.

[0082] S7: Change the water pump speed ω through the system controller, and repeat steps S2-S6 until ω covers all selected points within the water pump speed range to obtain the heat dissipation of the radiator under various speeds and gas-liquid temperature differences at various coolant flow rates.

[0083] It should be noted that the value of the heat dissipation power is ±5% of the maximum heat dissipation capacity of the radiator;

[0084] The sampling time interval t is 1 second.

[0085] ω is a value taken at 8-10 points evenly distributed within the range of pump speed.

[0086] r represents the value taken at 8-10 points evenly distributed within the radiator's rotational speed range.

[0087] In the embodiments disclosed herein, such as Figure 6 As shown, the method further includes:

[0088] Using the gas-liquid temperature difference as the horizontal axis and the heat dissipation as the vertical axis, a map is constructed for each radiator's rotational speed.

[0089] It should be noted that, Figure 6 In the diagram, the lines of different colors represent the curves of the heat sink under test at different speeds.

[0090] For example, the detailed procedure for testing the heat dissipation performance of a hydrogen fuel cell radiator includes:

[0091] F1: Power supply for starting the water pump, fuel cell, radiator, flow meter, and temperature sensor;

[0092] F2: Set the water pump speed to ω;

[0093] F3: Set the heating power of the fuel cell to P;

[0094] F4: Sets the radiator speed to r;

[0095] F5: At each sampling time interval t, obtain the fuel cell voltage, fuel cell current, flow rate L of the flow meter, ambient temperature T, temperature of thermometer 1 T1, and temperature of thermometer 2, and import the above data into the heat dissipation capacity calculation module to calculate the heat dissipation.

[0096] The heat lost by the coolant after passing through the radiator is the heat dissipation of the radiator, which can be calculated using the following formula: Q=Cp*L(T1-T2) / 1000, where Cp is the specific heat capacity of the coolant, J / kg / K, L is the current flow rate of the coolant, kg / s, and Q is the heat dissipation power of the radiator, kW.

[0097] F6: Determine if the radiator speed covers all speeds within its speed range. If yes, proceed to F7; otherwise, change the radiator speed r and repeat steps F1-F5 until the radiator speed covers all speeds within its speed range. Finally, obtain the radiator's heat dissipation capacity under different radiator speeds and different gas-liquid temperature differences at a coolant flow rate of L.

[0098] F7: Change the water pump speed ω and repeat steps F2-F6 until all speeds within its speed range are covered. Finally, the radiator heat dissipation performance data under different flow rates can be obtained.

[0099] In summary, the heat dissipation performance testing method for hydrogen fuel cell radiators proposed in this embodiment is simple to operate, provides accurate data, and is highly practical. In actual operation of hydrogen fuel cells, the control system can directly and quickly match the radiator's heat dissipation capacity with the gas-liquid temperature difference, water flow rate, and battery heat generation through a lookup table, thereby determining the radiator's rotational speed, improving the efficiency and stability of the thermal management system, and avoiding energy waste.

[0100] Example 2

[0101] To implement the above embodiments, this disclosure also proposes an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the method described in Embodiment 1.

[0102] Example 3

[0103] To implement the above embodiments, this disclosure also proposes a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in Embodiment 1.

[0104] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0105] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0106] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A system for testing the heat dissipation performance of a hydrogen fuel cell radiator, characterized in that, The system includes: a heat source, a water pump, a radiator under test, an ambient thermometer, a coolant flow meter, a first coolant thermometer, a second coolant thermometer, a system controller, and a heat dissipation capacity calculation module; The heat source, water pump, and radiator under test are connected in series through pipes to form a coolant circulation loop. The first coolant thermometer and the second coolant thermometer are respectively installed at the coolant inlet and outlet of the radiator to be tested, and are used to collect the coolant inlet temperature and coolant outlet temperature. The ambient temperature meter is used to collect the ambient temperature during testing; The coolant flow meter is installed on the coolant circulation loop to collect the coolant flow rate; The system controller is connected to the heat source, water pump, radiator under test, ambient thermometer, coolant flow meter, first coolant thermometer, and second coolant thermometer, respectively, and is used to control the heating power of the heat source, the speed of the water pump, the speed of the radiator under test, and to collect the heating power, ambient temperature, coolant flow rate, coolant inlet temperature, and coolant outlet temperature. The heat dissipation capacity calculation module is electrically connected to the system controller and is used to calculate the heat dissipation of the radiator under test under various operating conditions based on the heat generation power, ambient temperature, coolant flow rate, coolant inlet temperature, coolant outlet temperature and preset formula.

2. The system as described in claim 1, characterized in that, The system also includes: a generation module; The generation module is used to construct a map diagram with the gas-liquid temperature difference as the horizontal axis and the heat dissipation as the vertical axis, under the rotational speed of each radiator.

3. The system as described in claim 2, characterized in that, The calculation formula for the preset formula is as follows: Q = CpL(T1-T2) / 1000 In the formula, Q is the heat dissipation of the radiator, Cp is the specific heat capacity of the coolant, L is the flow rate of the coolant, T1 is the inlet temperature of the coolant, and T2 is the outlet temperature of the coolant.

4. The system as described in claim 3, characterized in that, The heat source is an electric heating device or a hydrogen fuel cell; When the heat source is a hydrogen fuel cell, the system controller is also used to collect the voltage and current data of the hydrogen fuel cell and transmit them to the heat dissipation capacity calculation module. The heat dissipation capacity calculation module is also used to calculate the heat generation power of the hydrogen fuel cell based on the voltage and current data of the hydrogen fuel cell.

5. The system as described in claim 4, characterized in that, The formula for calculating the heating power of the hydrogen fuel cell is as follows: P = n * I * (1.229 - U) / 1000 In the formula, P is the heating power, n is the number of hydrogen fuel cell modules, I is the current of the hydrogen fuel cell, and U is the voltage of the hydrogen fuel cell.

6. A method for testing the heat dissipation performance of a hydrogen fuel cell radiator based on the test system described in any one of claims 1-5, characterized in that, The method includes: S1: The system controller starts the power supply to the water pump, heat source, radiator under test, coolant flow meter, first coolant thermometer, and second coolant thermometer, so that the test system enters the working state. S2: Set the water pump speed to ω via the system controller; S3: Set the heating power of the heat source to P through the system controller; S4: Set the rotational speed of the heatsink under test to r via the system controller; S5: The system controller controls the coolant flow meter, the first coolant thermometer, the second coolant thermometer, and the ambient thermometer to collect data at sampling time intervals t, obtain the coolant flow rate, coolant inlet temperature, coolant outlet temperature, and ambient temperature, and transmit the collected data to the heat dissipation capacity calculation module. The heat dissipation capacity calculation module calculates the heat dissipation of the radiator under test under the current operating conditions based on a preset formula. S6: Keep the water pump speed ω and the heat source heating power P constant, change the speed r of the radiator under test through the system controller, repeat steps S4-S5 until r covers all selected points within the range of radiator speed, and obtain the radiator heat dissipation capacity data corresponding to each radiator speed and each gas-liquid temperature difference under the current coolant flow rate. The gas-liquid temperature difference is the difference between the radiator coolant inlet temperature and the ambient temperature. S7: Change the water pump speed ω through the system controller, and repeat steps S2-S6 until ω covers all selected points within the water pump speed range to obtain the heat dissipation of the radiator under various speeds and gas-liquid temperature differences at various coolant flow rates.

7. The method as described in claim 6, characterized in that, The value of the heating power is ±5% of the maximum heat dissipation capacity of the radiator; The sampling time interval t is 1 second.

8. The method as described in claim 7, characterized in that, The method further includes: Using the gas-liquid temperature difference as the horizontal axis and the heat dissipation as the vertical axis, a map is constructed for each radiator's rotational speed.

9. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the method as described in any one of claims 6-8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method as described in any one of claims 6-8.

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