-------- Original Message --------
Subject: Fwd: Re: [Vo]:Levi Hot Cat paper is a gem
Date: Thu, 23 May 2013 10:20:27 -0700
From: Duncan Cumming <[email protected]>
To: [email protected]
I am acting as devils advocate here for a minute.
Had the demo been intentionally faked, there are a lot of much easier
ways to do it than re-wiring the building! Power measurement was done
using a wide band 3 phase power meter, a notoriously difficult
instrument to use. A slight slackening of one of the current sensing
clamps, a particle of grit (or Scotch tape) on the clamp face, or
mis-threading of the cables through the clamps would give lower than
actual power readings. A controller could easily be designed to
bamboozle such a power meter, by exceeding either the shape factor or
the bandwidth spec of the power meter. No measurements were made of the
current waveform, which measurements would have immediately exposed such
chicanery.
In short, the power measurement could have been fiddled very easily. Now
I am not saying that it was, merely that it would have been easy to do
so. The way to avoid such problems in the future would be simply to use
DC to power the heaters. Or have the reactor tube tested at somebody
else's facility, with a manufacturer's rep present to ensure that nobody
saws the tube in half. Or to use an ordinary tube furnace with cooling
coils for a self sustaining test.
In other words, if the manufacturer really wanted to test the reactor
properly, they could - easily.
Duncan
-------- Original Message --------
Subject: Re: [Vo]:Levi Hot Cat paper is a gem
Resent-Date: Thu, 23 May 2013 09:01:42 -0700
Resent-From: [email protected]
Date: Thu, 23 May 2013 08:59:25 -0700 (PDT)
From: Alan Fletcher <[email protected]>
Reply-To: [email protected]
To: [email protected]
From: "Eric Walker"<[email protected]>
Sent: Wednesday, May 22, 2013 11:00:43 PM
Alan (or someone) made the point that everything, laptop and all,
were plugged into the same power supply. Would hidden DC or AC above
or below the range of the meter hurt the laptop?
That was me -- and only a couple of things were plugged into the same socket --
the meter and a camera. The laptops were further over on a separate plug.
And of course, since the whole building was wired for the power-input fake,
just that ONE socket for the controller would have been rigged, set up before
the test team arrived. (Certainly for the December test -- they said it was
already running.)
