My review at:
http://www.mtaonline.net/~hheffner/Rossi6Oct2011Review.pdf
has been updated. Improved graph formats were provided. I will be
available to discuss this once my finite element analysis is done.
Meanwhile, I'll hopefully resume lurk mode.
A significant part of the update is inclusion of the following sections:
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ACTIVE CONTROL
To make any sense of the data with a non-nuclear explanation, it
appears the electric heating power is separated into two parts, one
part which heats the water directly, and one part which heats an
internal metal mass. In addition, it appears there needs to be an
active control which affects the thermal conductivity between a large
thermal mass and the water, and thus division of the input power into
a third part. This control must produce minimum thermal resistance
between a hot thermal mass and the water when no power is applied to
it. Further, it must be controlled with about 300 mA * 240 V = 7.2
watts of power, because the power from the “frequency generator” must
be enough to regulate the thermal output power. When main heater
power was cut and when the “frequency generator” power was cut, there
was an immediate surge of thermal power out. In both cases, a power
cut to the heater(s), and a power cut to the frequency generator, a
large thermal pulse resulted immediately upon the power cut.
One means of achieving the necessary power control is to use the
actuator from a zone valve to make or release contact between large
area (e.g. 29 cm by 29 cm) slabs of thermal conductors. This can be
accomplished by spring loading the slabs to a closed position and
using the actuator from a zone valve (.e.g. Taco Power Head) to press
the plates apart. A typical US residential zone valve operates in
the appropriate power range, and is activated by about 10 V at 1 A.
The power is applied to a resistive material which expands thermally
to open a zone valve. In a hot environment such an actuator could
expand with less than normal power. An alternative to changing slab
separation is to control convective flow of a thermal transfer fluid.
In this case when power is applied then flow must be cut off.
DYNAMIC FEA SIMULATION
A dynamic linear FEA simulation program is being developed to look at
potential thermal storage mechanisms. A sample of some run input
data is located here:
http://www.mtaonline.net/~hheffner/RptR4
Report of the results will be made separately from this review.
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Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
