On Sep 1, 2011, at 5:53 PM, Jed Rothwell wrote:
Horace Heffner <[email protected]> wrote:
I don't see your point. I used to do this test with a hose
producing 75 kW at Hydrodynamics Inc. It worked fine. The results
were close to the expected amount from that heater.
If that was a Griggs device I wonder if your memory might be
failing you, like mine has been failing me. Didn't Griggs use
around 7 hp motors and achieve much less than a COP of 2, more like
1.2?
He had small ones but I tested huge ones. They could be set to
produce no excess, in which case this method recovered about 90% of
the input energy, as I recall. It was tricky to make them produce
excess. You could tell the thing was in the excess mode by the sound.
You can see a photo a huge one here:
http://hydrodynamics.com/products/large-flow-reactors/
- Jed
I am happy to see such a neat application was found for Grigg's
technology. I hope he has benefited from it.
I do see the application appears to be mixing, not steam production.
"Harnessing the power of cavitation, the ShockWave PowerTM Reactor
drives the transesterification reaction further to completion than
conventional mixing systems. "
http://hydrodynamics.com/app/download/4743775404/General+Biodiesel
+Press+Release+Final.pdf
"The use of cavitation prior to liquefaction has been demonstrated to
liberate additional starches, significantly increasing yield."
http://hydrodynamics.com/app/download/4756843604/International+Fuel
+Ethanol+Workshop+2011.pdf
I didn't see any mention of the power used. The motors definitely
look to be in or over the 100 HP (75 kW), range though!
I am still curious about the inner diameter of the steam hose you
used. I find it difficult to believe 75 kW of steam can be stuck
into a bucket by hand for calorimetry.
I think 75 kW would vaporize about 30 ml cold water/sec, and produce
about 47 liters/sec of steam. A 1 cm radius hose like Rossi's would
produce a steam velocity of 75 m/s, or 270 kph. I can't imagine
immersing that kind of steam jet into a bucket being either safe, or
the bucket reliably absorbing all the steam. I think 10 kW would
produce about 36 kph output from a 1 cm ID hose, still pretty fast,
about 10 m/s.
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
