Table of Contents
Advertisement
10. Storage and Re-Use
When finished operating the stack, place it in an enclosed area for storage to keep the stack from getting
too dry. The stack should be stored at room temperature.
If the stack is un-used for a long period of time (more than 4 weeks) and it's performance goes down 50%
to the rated power at 43.2V, we recommend do the following steps.
Note: Generally, injecting water into the stack it is not recommended. Only if the performance of the stack
decreases 50% is it recommended to inject water into the stack to activate the stack before operation.
Rejuvenate by injecting water into the stack:
1.
Connect a short section of hosing to the gas port marked "H2 in".
2.
Fill a syringe (not provided) with water (distilled or purified). Make sure there is no air in the syringe.
And then connect it to the hose attached to the "H2 in" port.
3.
Inject distilled or purified water into the stack until you see water coming out of the "H2 out" port
(see picture A below for reference). Keep the water inside the stack for about 2 minutes.
Now disconnect the syringe with the tube, and leave the water in the stack.
4.
Purged the water out of the stack thoroughly before use. Connect a short tube to the "H2 out"
port. And connect the H2 supply (0.45-0.55Bar) to the stack without a load attached, and
purge the stack
other contaminants).
Please see picture B below for reference.
Make sure the hydrogen supply pressure is 0.45-0.55Bar.
WARNING:
1. Please make sure you have purged the water out of the stack thoroughly before use if you injected
water into the stack. Using the fuel cell stack with water inside can irreparably damage it!
2. The tube between the hydrogen pressure regulator and the fuel cell gas input is required to be less
than 30cm.
3. Disconnect the hydrogen supply completely within 5 minutes after the fuel cell stack is shut down.
Since hydrogen gas can leak into the fuel cell and destroy the stack.
4. When you turn off the on/off switch connected to the control box at the temperature of the fuel cell
stack higher than 45˚C the stack will not stop working immediately. Only when the stack temperature goes
down below 45˚C, the whole system will stop operation in order to protect the stack. So in order to make
it work well, the fuel cell stack must be maintained lower than 45˚C before operate the on/off switch.
5. The stack must be standing on the clear plastic feet.
H-1000 Fuel Cell Stack User Manual V4.4
thoroughly (i.e. letting hydrogen flow through the stack to remove water and
Using the fuel cell stack with water inside can irreparably damage it!
A
B
0.45-0.55Bar
27
Advertisement
Table of Contents
