Kyoto University, Noritake Company Limited, IHII, Nippon Catalyst, Toyota Industries, Mitsui Chemicals, and Tokuyama announced on July 7 that they have succeeded in the world's largest power generation of ammonia fuel cells through joint research.
Stable storage and transportation by converting gaseous hydrogen into a chemical substance containing a large amount of hydrogen at normal temperature and pressure as a medium for energy storage and transportation when a large amount of unused energy or renewable energy is introduced or used. Expectations are rising for energy carriers, which are the medium for doing so.Ammonia is attracting the most attention as a candidate for an energy carrier, and expectations are rising for its use as a fuel.
The direct ammonia fuel cell this time directly supplies ammonia gas, which is the fuel for power generation, to the fuel electrode attached to one side of the electrolyte zirconia, and by supplying the air electrode air on the opposite side, power is generated between the two electrodes. It is based on the principle of making.This technology stacks 30 fuel cell single cells, minimizes the temperature distribution, and allows ammonia to flow evenly to each cell. As a result, ammonia is directly supplied to the 1kW class SOFC stack, which is closer to practical scale. Generated electricity.
When ammonia fuel was directly supplied to this stack to generate electricity, it was confirmed that the power generation characteristics were as good as those of pure hydrogen.In addition, the DC power generation efficiency of the fuel cell achieved a high value exceeding 1%, which is a characteristic of SOFC, despite the scale of 50 kW.Furthermore, we succeeded in stable continuous operation for 1 hours with the 1000kW class evaluation system.
In the future, we plan to manufacture and operate a 1kW class compact package demonstration machine.In the future, it is expected to be deployed as a distributed power source for commercial use.
