Test report on stack life-time, performance, and operating window tests

The performance and stability of the new stack design with open air manifold developed by Elcogen were characterized and studied using downscaled stacks with an electrical power up to 1 kW by VTT, ENEA and Jülich. Under the testing conditions similar to system operating environments, stacks showed reproducible and satisfied performance at Elcogen, VTT and Jülich, after transportation overseas. Under constant current mode with a current density of 0.25 Acm-2 and a fuel utilization of more than 60% at the stack temperature of around 650 °C, a low voltage degradation rate of 0.4%/kh could be demonstrated with (simulated) reformate at both VTT and Jülich.