[Diy_efi] Hydrogen

[bearbvd at mindspring.com]

Original Message:
-----------------
From: Garrett P. Beauregard gpbeau at cox.net
Date: Thu, 7 Sep 2006 18:55:30 -0700
To: diy_efi at diy-efi.org
Subject: RE: [Diy_efi] Hydrogen


Hydrogen is generated via electrolysis (yes--expensive)

Perhaps this would be a credible way to do it with electricity generated
with nuclear power/MHD. Ya just gotta LOVE it when California (and other)
greenies want to export more pollution to the four corners area !!!

 and stored in ASTM
hydrogen cylinders.

This would be a BIT more credible as being safe if it were ASME who were
certifying the cylinders. Perhaps your saying ASTM was a typo ??? If a
pressure vessel doesn't carry the ASME cloverleaf stamp, don't pharkin'
trust it !!

As for fittings, the gold standard is Swagelok or Parker stainless steel
compression fittings:

http://www.swagelok.com/search/find_products_home.aspx?SEARCH=/search/Tube+F
ittings+and+Tube+Adapters/id-10000212/type-1

No embrittlement
with stainless, 

Huh ??? I'd like to see a few credible references on this statement !!!!

As for engines, we have seen no ill affects from the hydrogen gas.

What compression ratio are they running ??? Any credible research on the
equivalent of 'RON' for H2 as a fuel ??

 Of
course, one would use hardened valve faces to deal with the heat of
combustion.

Not so much the heat as the lack of lubricity--- same situation as a
methane (NG) fueled engine.

What is the adiabatic flame temp of H2 in air (and same number for gasoline
in air)??? I don't recall either offhand, but do recall it being 'not all
that high' because of the high heat of dissociation of H2. Do recall things
like C2H2 (acetylene) and MAPP gas being FAR higher---


Now, don't ask me if Hydrogen is the fuel of the future because the jury is
not impaneled yet.

This juror won't see much credibility in the arguements for it as any sort
of a useful fuel until folks (including the entire herd of grant
prostitutes who love to expound on the subject) start admitting that water
vapor is a FAR more powerful greenhouse gas--particularly at low
stratospheric elevations--than CO2 is !!!!

Not to mention until some of what could be done for home heating, cooling,
and dhw (with economics that are entirely reasonable TODAY) with small
(house size) sub-critical reactors fueled with 'depleted' U (slugs of
U-238) such as are used as sabots in anti tank projectiles--- gets DONE !!!
We have HUNDREDS (perhaps thousands) of TONS of 'depleted' U, it's criminal
that we are not USING it when practical tech to do so EXISTS TODAY !!!

For information sake, one must understand that 'depleted' U is the very
nearly pure U-238 which is the by-product of  an 'enrichment' process which
removes the naturally occurring (small) portion of the U which is the U-235
isotope--to produce 'enriched' U--namely U which contains a higher
percentage of U-235 than what occurs in nature for fuel (in CRITICAL
reactors) or weapons purposes.

Greg 

Greg


Garrett

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