Answer Happy

Posted: **Thu May 05, 2022 2:23 pm**

: 4 25 A Current Interrupt Test For Another Fuel Cell Is Performed And The Results Are Shown In Fig 2 The Test Is Per 1 (16.16 KiB) Viewed 44 times

: 4 25 A Current Interrupt Test For Another Fuel Cell Is Performed And The Results Are Shown In Fig 2 The Test Is Per 2 (39.53 KiB) Viewed 44 times

4. [25%] A current interrupt test for another fuel cell is performed and the results are shown in FIG.2. The test is performed at i=0.1 A/cm², and the time scale on the plot is 0.02 sec/div. Assume that the concentration loss is negligible. (1) What are the activation and the ohmic losses? (2) Determine the area specific resistance of the fuel cell, in 2-cm². (3) The fuel cell could be a PEMFC, DMFC, or SOFC. Which one you think is most possible and why?
Voltage time FIG.2 0.05 V 0.2 V