Dull red heat is only 500C. You are not being convincing about the E-Cat heaer
which it seems you know nothing about. Also the heater would seem to be
irrelevat if you believe theres actually an anomalous contribution. The flow
rate through a particular E-Cat is irrelevant. Take the Krivit video, 2g/sec.
With the flow turned off it should still be vaporizing 2g/s (until it cools).
The point to my demonstration was not comparison w/ E-Cat. If my stove were
well insulated there's no doubt that it would be able to make steam for days if
not weeks. You need to see that there's a time constant involved. Radiation
conduction & convection w/ the outside is not occuring w/ the E-Cat except for
the samll 2g/s cooling asociated w/ steam making. That the rate of production
drops in the 15 minutes is a given. One would not expect the production rate to
instantaneously stop as soon as the power was shut off. It would produce steam
for some time after. Thus the term thermal inertia. 15 minutes is not
inordinate. Only ~ 1000J/sec for ~1000 sec (a generous estimate of Levi's
observation), or 1MJ. In a couple kgs of metal this is easily supplied by a
500K temperature difference.
----- Original Message -----
From: Jed Rothwell
To: [email protected]
Sent: Thursday, August 25, 2011 6:33 PM
Subject: Re: [Vo]:The Krivit Videos Part 3
On 8/25/2011 5:36 PM, Joe Catania wrote:
No, the metal is certainly >100C (I think alot greater).
Electric heaters such as the ones in the eCat have an upper limit in
temperature. It is much lower than a stove nichrome heating element, which goes
up to about 1200°C.
As for an experiment I just turned up my electric stove (the small burner)
to High until there was a dull red glow. As of 20 minutes after I turned the
power off it was still able to produce steam when a drop of water was dropped
on it.
I can see how that would be with drop of water (a fraction of 1 ml) but I
believe this event was with the large eCat used in the first tests, with a flow
rate of ~300 ml/m. That's 4.5 kg of water vaporized in 15 m, which takes a
tremendous amount of heat. That's ~45,000 more water than your drop of water on
the hot nichrome.
I think the eCat that went on with heat after death was the big one, used in
the first test. I believe that is the machine they used in December and
January. I don't recall the weight of it, but the video shows two people
lifting it up and putting it on a weight scale with no difficulty. It is mostly
an empty pipe . . . around 10 kg?
Assuming the power was anything close to the January 14 demo of 12 kW, you
cannot even deliver that much electricity to the machine in the first place. It
would burn up the wire. And even if you could, you can't store 4 kWh of heat
(14,400 kJ) in 10 kg of metal. The specific heat of carbon steel is 0.49 kJ/kg
K, so if there is 10 kg this would raise the temperature by 2,939 deg K.
http://www.translatorscafe.com/cafe/units-converter/energy/c/
http://www.engineeringtoolbox.com/specific-heat-metals-d_152.html
- Jed
