Viewing profile — kirksmith

Made this video on our project which might be of interest to folks here! Happy to answer any questions. First time making a long-form video. Previous HN thread: https://news.ycombi…

The pumping cost constitutes a 1-2% total penalty on round-trip energy efficiency for a well-designed flow battery.

I take your criticism, but as for your comment that it's "a student project at best"... we do have PhDs (mine in flow batteries !) and manage this project in our spare time, at our…

Hey, thank you! The liquids are reusable, and are charged and discharged repeatedly without needing to replace the fluids. In other words the system is closed with respect to mass,…

*typo: meant to say we have a grant from NLnet https://fbrc.dev/posts/NLnet-funding/ , which will cover a few months of full-time work (for one contributor)

Bingo, this is exactly the plan. Of course there are non-trivial engineering challenges when scaling up, but that's the rough idea.

Iron plating is a hydrogen evolution nightmare. It's interesting for sure, but not feasible for a simple demonstration system, due to pH issues and oxidation state drift from hydro…

I agree... part of that frustration is why we're working on this project! See my short post on "Why you can't buy a flow battery today" https://dualpower.supply/posts/motivation-OS…

Yeah I am self-hosting with a VPN and following all the best practices I know (not my expertise), not surprised there's some warnings going around.

It's in the graph image, CE: 88.7%

We are planning other electrolytes beyond zinc-iodine (including iron salts), but this one happens to be practical for getting started due to widespread availability, tolerance to …

Thanks! This kit is for R&D and educational purposes only, because of the use of positive displacement pumps (peristaltic, diaphragm, etc) instead of centrifugal pumps, it will nev…

some context: https://dualpower.supply/posts/motivation-OSHW-RFB/

Wow, hi all, I am Kirk, the author of this blogpost, never thought my small ARM board home server would handle this much traffic! Currently reading through these posts, feel free t…