KeithDPatch#H2Safety
1) How can one say↙️ "suitable for use in practical alkaline water electrolysis" ↘️ when at only 900hr the 1A/cm2 hydrogen crossover ↘️↘️ becomes 0.9% H2 in O2 #HTO, or 22.5% of the lower flammability limit #LFL for #H2 in #O2?
ISO-22734 requires shutdown at 2% H2, or 50% of the #LFL! Extrapolation shows that 2% H2 would be reached in only 1,100 more hours of operation!
2) RE: "without significant damage to the membrane" - I'd say a 4x increase in #HTO at 900hr is "damage", wouldn't you??
1) How can one say↙️ "suitable for use in practical alkaline water electrolysis" ↘️ when at only 900hr the 1A/cm2 hydrogen crossover ↘️↘️ becomes 0.9% H2 in O2 #HTO, or 22.5% of the lower flammability limit #LFL for #H2 in #O2?
ISO-22734 requires shutdown at 2% H2, or 50% of the #LFL! Extrapolation shows that 2% H2 would be reached in only 1,100 more hours of operation!
2) RE: "without significant damage to the membrane" - I'd say a 4x increase in #HTO at 900hr is "damage", wouldn't you??
Michael Blume
Arkadiusz Sikorski