There are at least 5-10 different kinds of old and new stirling engines
available with 30-40% efficiency using 7-800°C input temperatures. They
range from 100W-30kW in capacity.  So no problem doing a self-driven system
with LENR COP of 3.2
Qenergy probably easiest to get a hold of (around 33%, using recently
bankrupt Infinia's 3.5kW output design of which they built a fairly
sizeable stirling solar dish field, so while not advertised they probably
have 10's-100's of engines available now.
Or could go for larger V4-90 of united sun systems (also about 32%
efficient) at about 10-25kW output:
http://www.unitedsunsystems.com/the-v4-90-stirling-engine/
They probably have several hundred motors sitting around from when they
bought out bankrupted Stirling Energy Systems 2 years ago (they had a 75
dish field of stirling solar dishes in Maricopa AZ.
Also Mahle Powertrain:
http://www.mahle-powertrain.com/C1257126002DFC22/vwContentByUNID/D06710E71F58400DC1257A8B0038FDEA/$FILE/MAHLE%20Solar%20Stirling%20Engine%20Development%20(Abs).pdf
40.5% at 25kW

On 18 October 2014 13:42, Eric Walker <[email protected]> wrote:

> I wrote:
>
> In another sense, it would be no more overunity than a fission reactor,
>> since the energy would be coming from the conversion of mass via nuclear
>> reactions.
>>
>
> The obvious objection to the above is that the release of energy always
> involves a mass deficit.  The idea was that cold fusion doesn't need to
> involve a violation of CoE, and so a cold fusion device would not really be
> an overunity device.
>
> Eric
>
>

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