Thanks but according to all of their published reports hydrogen peroxide was
not used just water BUT it is interesting that you came up with the 600 deg F
temperature. I will investigate this farther :)
Sent from my iPhone
On Jul 27, 2019, at 3:34 PM, 1bcjolly <1bcjolly@xxxxxxxxxxxxx> wrote:
I think what you are looking for is the decomposition of hydrogen peroxide.
90% H2O2/NaMnO4 yields 600 degree steam plus O2. Germans used it in various
applications during WW2. The reaction was used in the V2 to drive the turbo
pumps.
Regards,
Barry Jolly
Sent from my Sprint Tablet.
-------- Original message --------
From: "(Redacted sender "jkraieski" for DMARC)" <dmarc-noreply@xxxxxxxxxxxxx>
Date: 7/27/19 13:44 (GMT-05:00)
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: Exothermic Heating of Water
I have reviewed the patent and it is only for the "design" of a propulsion
unit. Although some chemicals
are listed, they may or may not have really been used by them because the
chemicals are not what is
being patented. I have run some combinations of these chemicals thru a
chemical equation solver and
no results have been encouraging so far, but I will try a bunch more before I
conclude that these chemicals
may not actually be the ones that were used.
John
-----Original Message-----
From: Bruno Berger SPL <mailinglists@xxxxxx>
To: arocket <arocket@xxxxxxxxxxxxx>
Sent: Fri, Jul 26, 2019 1:19 pm
Subject: [AR] Re: Exothermic Heating of Water
A patent research is always a good source...
https://worldwide.espacenet.com/publicationDetails/biblio?locale=en_EP&II=0&date=19660727&CC=GB&NR=1037595A&ND=3&KC=A&rnd=1564161475298&adjacent=true&FT=D#
Bruno
Am 26.07.2019 um 16:50 schrieb (Redacted sender jkraieski for DMARC):
Yes I have that report and like you there was never a followup report
or discussion of the reactants :(
-----Original Message-----
From: DH Barr <dhbarr@xxxxxxxxx>
To: arocket <arocket@xxxxxxxxxxxxx>
Sent: Fri, Jul 26, 2019 10:46 am
Subject: [AR] Re: Exothermic Heating of Water
Partel, G., Laurienzo, P., and Diamantini, F., "An Italian Approach to
Reusable Low-Cost Rockets," SAE Technical Paper 670386, 1967,
https://doi.org/10.4271/670386.
Apparently it was a salt of some kind ? At a glance I don't find
further articles by any of the three authors.
On Fri, Jul 26, 2019 at 9:27 AM Redacted sender jkraieski for DMARC
<dmarc-noreply@xxxxxxxxxxxxx <mailto:dmarc-noreply@xxxxxxxxxxxxx>> wrote:
First I will give you my background. I am a retired Manufacturing
Engineer who has been out of the rocketry scene for over 20 years.
I was a member of Tripoli in the past and flew up to and including
M size motors. I also built a monopropellant engine for static testing
back in the day. My passion however, has always been to build a
hot water/steam powered engine which I now intend to complete.
What I am looking for is a “chemist” who can figure out what
chemical(s) were used by Glauco Partel of Italy, who in the late
1960s for
his Grillo 1 and Grillo 2 rockets which used an exothermic
reaction to “instantly” heat the water to approx 600 deg F. Below
are his
statedparameters from his published report:
1. Rapidity of use (the chemical reaction is fully developed
within 0.3 sec)
2. Efflux independent of the production of energy (the
controls for the
reaction and the efflux are independent, one from the
other)
3. No need for any ground equipment
4. The prepackaged, loaded engine can be stored for an
indefinite period
of time
5. No need for any insulation of the engine walls
6. Outstanding reliability and safety in use
7. Low operating temperature (about 600 F)
8. No gas, such as hydrogen, is produced
9. The reaction takes place in the water and generates a
reaction product
entirely soluble in water.
To me, this sounds like unobtainium but he did publish a report
with those specs and flew two
rather large rockets.
Regards - John
