[libre-riscv-dev] travelling

Jacob Lifshay programmerjake at gmail.com
Tue Oct 29 08:01:18 GMT 2019

On Mon, Oct 28, 2019, 22:08 Luke Kenneth Casson Leighton <lkcl at lkcl.net>

> Apologies I am currently travelling and also getting set up to go to Costa
> Rica to meet TEC University, there are a couple other really critical eco
> conscious projects other that the processor and the EOMA68 one that need to
> get kicked into high gear.

No problem. just don't fall for the trap of doing too many things to do any
of them effectively. :)

Safe travels.

These involve transportation: both the vehicles themselves, as well as the
> powertrain.  I am presently working hard to do the CAD Model on a variable
> compression ratio multifuel SIMPLE and libre engine with extremely high
> efficiency, as well as kickstart an ebike conversion project that will
> dovetail into a "mobile battery and distributed internet franchise".


The multifuel engine is intended for a TRIBRID drivetrain, involving
> electrolysis during braking instead of damaging batteries (yes, regen
> damages batteries) then injecting the mixed hydrogen and oxygen into the
> engine.

I think you may run into issues with needing a massive electrolysis cell to
absorb the full braking power, since electrolysis needs low current/area in
order to not waste a lot of power on overpotential or damage the electrodes.

You may want to check out using supercapacitors instead, as a temporary
energy storage mechanism, since they have a very high power rating (in the
range of 1000x batteries) due to not being based on a chemical reaction.
additionally, supercapacitors don't need additional plumbing and don't need
water refills. they also can skip the big energy loss of
internal-combustion engines which are usually less than 50% efficient.

The processor and EOMA68 have been part of a long term strategy that is
> just about to take off. However obviously I cannot do everything so have
> had to stop technical work on the processor whilst getting the engine etc
> up and running.

Ok, hopefully you will be available to help out with some of the more
important decisions such as deciding if we should switch to Power or not.

The purpose of going to TEC University is to see if they are willing to
> handle some of the projects.

that would be nice

Jacob Lifshay

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