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The waterthermal management system of a fuel cell is the core system that maintains the waterthermal balance of fuel cell engines. Factors such as flow rate, temperature and pressure distribution have significant impacts on the performance, power consumption, and reliability of fuel cell engines. Based on a 120 kWrated fuel cell engine, a theoretical basis for architecture design and component selection matching was provided from the perspective of optimal system function and performance. According to relevant design inputs and objectives, the modeling, simulation, and result analysis of the waterthermal management system were carried out using the onedimensional simulation software FloMaster. The distribution of flow rate, pressure, temperature, and velocity in the system under different operating conditions was evaluated, and verified through bench testing. The simulation and experimental results show that key technical indicators, such as the water pump flow rate, the temperature difference between the inlet and outlet of the fuel cell stack, and the inlet temperature of the fuel cell stack meet the system's target requirements under both rated and idle operating conditions.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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