EOL
END OF LINE TEST BENCH FOR SOLID OXIDE FUEL CELLS STACK ASSEMBLY
End of Line testing is a necessary part of the manufacturing process, since it is the last checkpoint before a product leaves the factory. End of Line station is a testing system positioned at the end of the fuel cells assembly line. It allows the quality control and the performance testing of the SOFC fuel cell stack by checking the most relevant parameters of the component.
The SOFC stack tested is one type, and it consists of no.70 cells grouped in no.10 different cluster. Utilizing a different stack interface and, eventually, an SW modification, it is possible to test other types of stacks of similar size.
The diagnostic test performed is the Polarization curve at 700°C: during this test, the voltage of each cluster of the stack is measured with a gradual increase of the current. The bench has to perform a heating curve (defined by the Customer), that consists of a gradual heating of the stack up to a maximum temperature of 910 °C and a controlled cooling of the system to room temperature.
The station is controlled by an electrical control cabinet, designed to manage five additional stations.
This test is the most important of the Fuel Cells production chain because it guarantees the perfect functionality of the product and its readiness to be mounted in a Fuel Cells final equipment. It also guarantees the quality and safety standards required by the market.
