Page 33 - Fuel Cell Teacher Edition
P. 33
12. Connect the multimeter to the fuel cell. Measure 15. Present your group’s optimized design ideas to
the potential (V), record it, then measure the the class.
current draw by plugging the red multimeter
lead into to the current port on the multimeter. 16. To scale the fuel cell data for use in the optional
Some multimeters will allow you to keep it modeling lab, multiply your current in milliamps
plugged into the voltage port. The range for by 6 and your voltage by 75.
measuring current is 0-99mA.
13. Calculate the fuel cell power (mW) by
multiplying the potential (V) and the current For example, if your fuel cell output
(mA). is 25mA at 1.2V, then the scaled data
for the fuel cell modeling lab would be
14. Discuss with your group members how the cell 150A at 90V.
design may be optimized.
16 TOTAL REDOX™ – FUEL CELLS TOTAL REDOX™ – FUEL CELLS 17
