The core technology of GL2 and ML2 battery water-cooled stack system products

2022-06-09 00:00

From February 27th to March 1st, the 15th Japan International Hydrogen Energy and Fuel Cell Exhibition FCEXPO2019 was held at the Tokyo International Convention and Exhibition Center, jointly organized by the Japan Hydrogen Energy System Society and the Fuel Cell Development Information Center. It is the largest and most influential hydrogen and fuel cell exhibition in the world. It brings together a variety of related technologies, materials, components and advanced equipment for hydrogen energy and fuel cells, attracting 270 companies from 17 countries around the world to participate in the exhibition.

The TW6000 hydrogen fuel cell engine was exhibited at this professional exhibition. The self-developed water-cooled stack GL2 electric reactor module, ML2 electric reactor module, air-cooled fuel cell reactor and system attached great importance to and actively participated in the international hydrogen energy and fuel industry. Battery Show.

The core technology of GL2 and ML2 water-cooled reactor power system products is 10~40kW and 10~50kW, and the single cell voltage signal acquisition function is integrated at the same time. The expandable power output of GL2 and ML2 electric reactor modules is 10~40kW and 10~50kW respectively. These two independently developed electric reactors, as the core technical components of Zhongyu Power Fuel's water-cooled reactor system products, have attracted the attention of many domestic and foreign tourists.

During the exhibition, the TW6000 hydrogen fuel cell engine became the focus of the exhibition area, and professional visitors continued to come to the Zhongyu Power booth. Fuel cell engines have the advantages of high system integration, small size, and strong adaptability, which are convenient for vehicle integration. During the three-day exhibition, Zhongyu Power's booth attracted extensive attention from domestic and foreign automakers and integrators. At the same time, the exhibition held a special forum on fuel cell vehicles in China. Leaders such as Vice President and Secretary General of China Society of Automotive Engineers Zhang Jinhua came to the booth to communicate with the staff about the products.

Water and thermal management within a proton exchange membrane fuel cell (PEMFC) stack is closely related to the performance output and stable operation of the stack. The water and thermal management capabilities of the stack can be significantly improved by rationally optimizing the convective field arrangement pattern and cathode operating parameters. On the basis of orthogonal experiments, the influence of the stack's power density, system efficiency and consistency on the flow field arrangement pattern and cathode operating parameters is investigated. At the same time, the interaction between any two parameters is investigated through an orthogonal sequence (OA) of three levels and six factors, and the combination of flow field arrangement patterns and cathode operating parameters is determined. The results show that the parameter combinations based on the output power of the electric reactor and the system efficiency are inconsistent due to the presence of parasitic loads such as compression power and pump power. At the same time, compared with the co-flow and cross-flow arrangements, the diagonal flow of the hydrogen flow and gas flow channel improves the water management capability of the electric reactor, and the diagonal of the cooling channel and the gas channel improves the thermal management performance of the electric reactor. The internal performance of the water-cooled stack is further improved.

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