bluwtr49 wrote:
Interesting article regarding a 10 KW fuel cell generator for military use that is undergoing tests for the army/marines. Right now running on JP-8 but I can see it moving to diesel also.
Fuel Cell Generator
The fuel cell might be a great idea, and it should have fewer moving parts, yet is subject to contamination in early versions. I hope they have overcome these problems.
One problem with early versions is the time it takes to go from full load to light load and especially from light load to full load can take a few minutes. So turning on a 1.5 KW air conditioner might bring down the voltage, and taking that compressor offline can raise the voltage for a little while when the fuel cell is told to slow down energy production. I guess that is easy to take care of with a inverter and larger battery bank to absorb quick changes in load.
It might work fine with a bank of lights and radios to run, yet large variable loads such as a electric stove, air conditioner, and refrigerators might put a much more variable load on the fuel cell. While a traditional generator can change from 8 KW to 0 in seconds, and back to 8 or full 10 KW in seconds with little variability in frequency or voltage, because the engine can go full throttle to 0 in 1 second, and back to full just as quickly.
I would also be wondering about weight too! Is it more or less weight than a traditional diesel generator.
Good luck!
Fred.