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Re: *FREE POWER FROM THE SUN* ~~~~~~~~~~~~ perspex covered Lake at 75 oC

From Sylvia Else <sylvia@not.at.this.address>
Newsgroups sci.physics
Subject Re: *FREE POWER FROM THE SUN* ~~~~~~~~~~~~ perspex covered Lake at 75 oC
Date 2016-12-27 11:58 +1100
Message-ID <ecdslgFb9ucU1@mid.individual.net> (permalink)
References <1b9f170e-5cbd-4ee0-82d6-dd2a76a2be60@googlegroups.com> <ecbcpoFnug2U1@mid.individual.net> <f063e4a1-f59d-4386-8be7-c49d096b06a7@googlegroups.com> <eccg0bF11haU1@mid.individual.net> <cba83dfc-1d4e-453f-8b78-0921af9a6010@googlegroups.com>

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On 27/12/2016 10:30 AM, grahamcooper7@gmail.com wrote:
> On Monday, December 26, 2016 at 4:16:15 AM UTC-8, Sylvia Else wrote:
>> On 26/12/2016 7:02 PM, grahamcooper7@gmail.com wrote:
>>> On Sunday, December 25, 2016 at 6:15:24 PM UTC-8, Sylvia Else wrote:
>>>> On 26/12/2016 12:47 PM, grahamcooper7@gmail.com wrote:
>>>>> Water has a very high thermal capacity!
>>>>>
>>>>> 4.2 joules per degree per gram
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Moving Hot Water across a large body of water is energy cheap!
>>>>>
>>>>> ==Tap |~~~~~~~~~~~~~~~~~~~~~~~| |_______________________|===Tap
>>>>> <-----------X--------->
>>>>>
>>>>> The mass of water moved doesn't matter, the entire body will
>>>>> self-organize into a lower equilibrium state, whether the Canal is 1
>>>>> meter long or 10 kilometers long!
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Pumping cooled water over a break in the Canal back into the Circuit
>>>>> is energy cheap!  You only need to pump a megaton of water 1 inch
>>>>> high over the Lip!
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Sterling Engines convert Heat to Motion, and Generators convert
>>>>> Motion to Electricity!
>>>>>
>>>>> Sterling Engines are simple and EFFICIENT!
>>>>>
>>>>>
>>>>> TEMP DIFFERENCE ___________________
>>>>>
>>>>> AVG. TEMP KELVIN
>>>>>
>>>>>
>>>>>
>>>>> Or roughly 60/300 = 20% OF HEAT CONVERTED TO MOTION
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Transferring HEAT from the HOT WATER BODY into the STERLINE ENGINE is
>>>>> easy!
>>>>>
>>>>> HOT STREAM >> HEAT SINK FINS >> COOL WATER >> PUMP
>>>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>>> __________________________________________|__________
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Cooling the STERLINE ENGINE is easy!   It has 1 COLD PISTON TOO!
>>>>> Evaporation Water Tanks or MISTING FANS are IDEAL!
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> POWER STATION RUNS 24/7 FROM SOLAR!
>>>>>
>>>>> So what are you waiting for?  GET THOSE STERLINE ENGINES RUNNING ON
>>>>> BOILING AND ICY WATER!  DIG THOSE TRENCHES AND LINE THEM WITH
>>>>> PLASTIC!  THE FREE ENERGEY WORLD IS HERE!
>>>>>
>>>>
>>>> This is no more free than any other source. Even coal in the ground is
>>>> free. The costs relate to making use of one's energy source. Trenches
>>>> cost money to dig. Stirling engines cost money to make and maintain.
>>>> Until you have credible costings, you aren't offering anything.
>>>>
>>>> Sylvia.
>>>
>>> Hi Sylvia!
>>>
>>> The Costs are simple!
>>>
>>> Massive Solar Array is 10X cost of Coal Power in the first 5 years.
>>>
>>> A sheet of plastic 1m2 is 1/10,000 the cost of a solar panel!
>>
>> But how much electricity to you get out of it?
>>>
>>> the beauty is....  24 HOURS OPERATION... the water temp drops only 10 degrees overnite!
>>>
>>> NO BATTERY REQUIRED!
>>
>>>
>>>
>>>
>>>
>>> During Extended cloud cover use up Hydrogen Stores by Electrolysis of Water from the Sterling Generator.
>>
>> So you need a way to store hydrogen in large quantities. Compressing it
>> wastes energy, but storing it at atmospheric pressure raises other cost
>> issues.
>>
>> How will you recover the energy from the hydrogen later? Burning it and
>> using the heat to run the sterling generator is one way, but it also
>> wastes energy. Fuel cells are better, but they represent an additional cost.
>>
>> It's an interesting idea, but so far it's just hand-waving.
>>
>> You need to do the math - how do the economics actually work out?
>>
>> Sylvia.
>
>
>
> There is only 1 Variable left, how much COOLER the hot stream becomes after passing through the HEAT SINK FINS (working in reverse)
>
> I think a low pitch Engine Cylinder, wide as a circular Spa and only 1 meter movement, with a smaller flywheel, a lot faster than a long cylinder.
>
> the Cold piston pumps low pressure cool air into the hot pistons cylinder (and Visa Versa)
> so the heating fins should remain about 50oC.
>
>
> STREAMS ENTER HEAT SINKS
>
> COLD WATER  ....... HOT WATER
>    10oC                70oc
>
> COOLING FINS ... HEATING FINS
>      20oC               50oC
>
>
> So if you can cool the hot stream by 20 degrees you get
>
> 1KM CANAL CIRCUIT X 10M X 1M DEEP
> 10,000 TONNES X 20DEGREES X 4.2 X 1000000GRAMS X 10% EFFICIENCY X 50% ELECTRICAL EFFICIENCY
>
> 5% x 20 CANCEL OUT!
>
> 42,000,000,000 JOULES (per canal full circle pump)
>
>


Or about 12MWh per circle.

But how much does this cost? There are many ways of generating 
electricity that work perfectly well from a physics point of view, but 
which are hopelessly uneconomic in practice.

Sylvia.

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Thread

*FREE POWER FROM THE SUN*  ~~~~~~~~~~~~ perspex covered Lake at 75 oC grahamcooper7@gmail.com - 2016-12-25 17:47 -0800
  Re: *FREE POWER FROM THE SUN* ~~~~~~~~~~~~ perspex covered Lake at 75 oC Sylvia Else <sylvia@not.at.this.address> - 2016-12-26 13:15 +1100
    Re: *FREE POWER FROM THE SUN* ~~~~~~~~~~~~ perspex covered Lake at 75 oC grahamcooper7@gmail.com - 2016-12-26 00:02 -0800
      Re: *FREE POWER FROM THE SUN* ~~~~~~~~~~~~ perspex covered Lake at 75 oC Sylvia Else <sylvia@not.at.this.address> - 2016-12-26 23:16 +1100
        Re: *FREE POWER FROM THE SUN* ~~~~~~~~~~~~ perspex covered Lake at 75 oC benj <benj@nobody.net> - 2016-12-26 16:47 -0500
        Re: *FREE POWER FROM THE SUN* ~~~~~~~~~~~~ perspex covered Lake at 75 oC grahamcooper7@gmail.com - 2016-12-26 15:30 -0800
          Re: *FREE POWER FROM THE SUN* ~~~~~~~~~~~~ perspex covered Lake at 75 oC Sylvia Else <sylvia@not.at.this.address> - 2016-12-27 11:58 +1100
            Re: *FREE POWER FROM THE SUN* ~~~~~~~~~~~~ perspex covered Lake at 75 oC grahamcooper7@gmail.com - 2016-12-26 18:30 -0800

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