9. FAQ
Q: What is the hydrogen consumption rate?
Q: What is the hydrogen consumption rate?
A:
The hydrogen consumption rate is related to the load current and number of cell. The ideal value is I x number of cell x
7 ml/min
·
A. But during the running process, the value will be changed because of short circuit loss, purging loss, blower
running loss and controller operation loss, etc. The loss is about 10%. Take 10pcs of cell as an example, the hydrogen
consumption rate at max. output is 55ml/min or more.
Q: Wouldn’t repeated assembly and dismantling damage the fuel cell?
A:
In conventional fuel cell stacks, yes, due to change in compression, gas sealing issue and mechanical disintegration.
Not for EDUSTAK JUNIOR. The secret is in our technology, a sealing border which allows the separation of Membrane
Electrode Assemblies (MEAs or the fuel cells) from the bipolar conductive plates.
Q: How can I replace the single cells?
A:
If a single fuel cell in the stack is damaged due to mishandling or loses power after extended usage, you can simply
replace it with a new one. This is not possible in a conventional fuel cell stack as you cannot dismantle it.
You can purchase a cell replenishment kit from us (a pack of 5 MEAs).
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Q: How can I obtain the required hydrogen supply?
A:
We strongly recommend metal hydride canisters as they are safe and simple to use. You can purchase from us or from
your local market.
Q: Do students need to be trained on any specific technical skills prior to building the EDUSTAK JUNIOR?
A:
No. All they need is enthusiasm, creativity, and exploratory minds.
EDUSTAK
JUNIOR
User
Manual
rev.1.1
©2013
Horizon
Ltd.
All
rights
reserved.
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