On Wed, Feb 9, 2011 at 3:49 PM, Terry Blanton <hohlr...@gmail.com> wrote:
> On Wed, Feb 9, 2011 at 1:39 PM, Stephen A. Lawrence <sa...@pobox.com> wrote:
>>
>>
>> On 02/09/2011 01:28 PM, Terry Blanton wrote:
>>> On Wed, Feb 9, 2011 at 1:15 PM, Stephen A. Lawrence <sa...@pobox.com> wrote:
>>>
>>>> Who, besides yourself, has said the reaction rate is being electrically
>>>> controlled to keep the steam temperature at 101.6 C?
>>>>
>>> Levi's report says the control box contains 5 digital PLC's.  I
>>> presumed they were programmable logic controllers and regulated the
>>> "hot spots" in the reactor.
>>>
>>> I think Rossi's Ecat is far more complex than you give him credit.
>>>
>>
>> Indeed, perhaps it is.
>>
>> And in the demo they lost the main heater and the steam temperature and
>> flow rate remained unchanged, steam coming out at 101.6 C and flow rate
>> still determined by the fixed rate of the pump.  Isn't that what Levi's
>> report also said?  Or am I misremembering that?
>>
>> I would love to see a statement by someone a little closer to the core
>> team that the output temp is tightly regulated by the heater current,
>> via precise control of the reaction rate.
>
>
> The heater is in five segments.  My guess is there is a need to
> maintain a gradient in order to start the reactor and that is the work
> of the PLCs.
>
> They lost two of the five segments but were able to get the reactor to
> start regardless.  Curiously, Levi says that they could not get it to
> self - sustain with only three working segments like they did in the
> December test.
>
> Kewl, eh?  It broke but they still make it work.  The old Rolls Royces
> had both a hand crank and a electric starter.  :-)

Oh, I seem to remember that self - sustain meant working at only 100 W
electrical input.

T

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