Thermal experimental teaching equipmentThrough the three core designs of "core component replication, precise control of thermal parameters, and data visualization monitoring", the entire process of fuel cell thermal management is simulated, balancing teaching intuitiveness and experimental authenticity. The specific implementation path is as follows:

1、 Reproduce the core structure of fuel cell thermal management

The teaching equipment is based on real fuel cells, simplifying and restoring key components of thermal management. The core includes micro stack modules (simulating fuel cell power generation cores), cooling circuit systems (including micro water pumps, heat sinks, expansion tanks), heating/cooling units, as well as temperature, flow, and pressure sensor matrices. The fuel cell module adopts a low-power simulation design, which simulates Joule heating during the power generation process through a resistive load. At the same time, it is equipped with heating elements to accurately simulate the heat release of electrochemical reactions, achieving the coordinated simulation of "power generation heat" and "external heating", and restoring the heat generation mechanism under real working conditions. The cooling circuit replicates industrial grade design and supports switching between water cooling and air cooling modes, allowing students to intuitively understand the heat exchange principles of different cooling methods.

2、 Accurate control of thermal parameters, simulating multi working condition thermal environment

　　Thermal experimental teaching equipmentEquipped with a wide range of thermal parameter adjustment functions, it can simulate the thermal management requirements of different operating conditions such as fuel cell start-up, steady-state operation, and overload. Accurately adjust the temperature of the fuel cell stack through a temperature control system (with a range of 50 ℃ -80 ℃ and an accuracy of ± 1 ℃) to match the optimal operating temperature range of the fuel cell; The flow rate of the cooling circuit can be adjusted by a variable frequency water pump (0.5-5L/min) to simulate the cooling demand under different thermal loads; The wind speed of the heat sink can be adjusted by a speed regulating fan (1-5m/s) to achieve dynamic control of heat dissipation efficiency. In addition, the device supports simulating harsh working conditions, such as simulating thermal accumulation by closing the cooling circuit and sudden thermal shock by suddenly increasing the load, allowing students to observe the risk of thermal runaway and corresponding measures, deepening their understanding of the importance of thermal management.

3、 Real time data monitoring and visualization, visually presenting the heat exchange process

The device is equipped with multi-dimensional sensors and data acquisition systems to capture key thermal management parameters in real time. Temperature sensors are distributed at the inlet and outlet of the fuel cell stack, cooling circuit pipelines, and heat sink surfaces to accurately monitor the temperature field distribution; The flow sensor records the circulation rate of the coolant, the pressure sensor monitors the pressure drop in the circuit, and the power sensor provides feedback on the balance between the heat generation and heat dissipation power of the fuel cell stack. All data is displayed in real-time through a touch screen, generating visual charts such as temperature change curves, heat flux density distribution maps, and heat dissipation efficiency trend maps, intuitively presenting the dynamic balance process of "heat generation heat transfer heat dissipation". Some devices also support data export function, which facilitates students' subsequent data analysis and thermal management efficiency calculation.

4、 Interactive experimental design, strengthening the combination of practical operation and principles

　　Thermal experimental teaching equipmentEmphasize practicality and set up diversified experimental projects to meet teaching needs. Students can observe the temperature changes of the fuel cell stack and explore the influence of heat dissipation parameters on thermal management effectiveness by adjusting the cooling water flow rate and fan speed; By switching between water-cooled/air-cooled modes, compare the differences in heat dissipation efficiency and energy consumption between different cooling methods; By simulating overload conditions and implementing thermal management protection mechanisms (such as automatically starting backup cooling pumps and triggering over temperature alarms), understand the logic of thermal safety control. The equipment also reserves expansion interfaces, supporting the addition of insulation layers, heat exchange enhancement modules and other accessories, conducting exploratory experiments such as thermal resistance optimization and heat exchange efficiency improvement, and balancing basic teaching and advanced scientific research training needs.