Abstract

Solid oxide fuel cells (SOFC) are expected to serve as the power source for highly efficient distributed power generation systems. To achieve early market entry and fair competition, it is essential that performance evaluation methods for SOFC be established and standardized. For this purpose, we have developed high-precision performance evaluation methods and test apparatuses to measure the power generation performance of SOFC cells, stacks, and systems. These methods were achieved by a combination of elemental technologies and tools, such as commercial measuring instruments, precision flowmeters and reference materials that are traceable to national standards, and catalysis technology. We evaluated the performance and usefulness of the test apparatuses developed in cooperation with SOFC manufacturers, and presented our standards activities, focusing mainly on the preparation of a Japanese Industrial Standard (JIS) for electrical efficiency test methods.

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