Thousands of solar panels

Forum solar photovoltaic PV and solar electricity generation from direct radiation solar energy.
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Remundo
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by Remundo » 16/01/09, 15:53

Hello friends,

I do not sulk my pleasure to see you interested in non-photovoltaic solar.

If you want to know the future of thermodynamic solar, nothing could be simpler ...

PHRSD + SPRATL : Idea:
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Christophe
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by Christophe » 16/01/09, 16:13

Remundo wrote:PHRSD + SPRATL : Idea:


You should specify the links to the subjects because I doubt that this is very significant for the newcomer!

Here is a summary subject on concentration: https://www.econologie.com/forums/centrale-e ... t4105.html (you can add the PHRSD (to your wishes) Remundo ...)

For the comparative concentration / PV curve I have one in mind that we had put on the forums (I can no longer find it ...) but it only concerned one day (very sunny). In the desert there is no photo: the solar concentration CRUSHES the PV ... under our lattitude it is not so certain ...
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by Christophe » 16/01/09, 16:35

Not found the curve in question but I found this very good synthesis of the interest of the solar concentration: https://www.econologie.com/fonctionnemen ... -3491.html
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Leo Maximus
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by Leo Maximus » 16/01/09, 16:45

Christophe wrote:Great photo!!! Bravo Leo!

"Interesting" this noise problem ...

What is at the origin? The solar tracker or the operation of the Stirling?

What is the cold source of striling? A lake? A stream?

Here's a video we made at the EnR fair in Paris last June about the SunMachine Stirling: http://fr.youtube.com/watch?v=IjvP3FJXVYI

For those who know solar well, it is interesting 9,8 kW for 56m²?


It makes a maximum yield of 9.8 / (56 * 1.2) = 14,6% ...

But the good question would be rather: 9.8 kW for X 000 €?
That of SunMachine will cost in 30 000 € ... for ... 1.5 kW ...

I would like to see an annual electrical productivity curve of a solar stirling in comparison to PV panel.

The stirling only produces direct radiation, the PV can use diffuse radiation ...

ps: I like the wooden cabanon behind! It contrasts :)

Noise is typical compressor noise. There is certainly a way to reduce it by putting the compressor sensor assembly in an enclosure with several thicknesses of glass-in-glass and by installing a suitable cooling circuit (?).

There is a complete PDF document about the installation:

http://www.cemes.fr/mecalrmp/fichier8RD ... uillot.pdf

We can also have data from DishStirling live via a site but the installation is currently under maintenance.

It is true that the yield is paltry, a few%, but when you do nothing the yield is even worse, it's 0%. :D
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by Remundo » 16/01/09, 18:08

Christophe wrote:
Remundo wrote:PHRSD + SPRATL : Idea:


You should specify the links to the subjects because I doubt that this is very significant for the newcomer!

Here is a summary subject on concentration: Central-and-motor-solar-themis-almeria-Stirling-solo-t4105.html (you can add the PHRSD (to your wishes) Remundo ...)

For the comparative concentration / PV curve I have one in mind that we had put on the forums (I can no longer find it ...) but it only concerned one day (very sunny). In the desert there is no photo: the solar concentration CRUSHES the PV ... under our lattitude it is not so certain ...

Toutafé,

if not, the images of my signature are clickable and lead straight on the subjects of economy.

Clever the Remundo : Cheesy:
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by Elec » 17/01/09, 00:40

Christophe wrote: But the good question would rather be: 9.8 kW for X 000 €? That of SunMachine will cost within 30 € ... for ... 000 kW ...

INFINIA will build a 50 MW Strirling solar power plant in Spain. The costs will go down.

I would like to see an annual electrical productivity curve of a solar stirling in comparison to PV panel.
The stirling only produces direct radiation, the PV can use diffuse radiation ...


With PV thin film, costs will be cut by three in the years to come.
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by Christophe » 19/01/09, 13:53

Christophe wrote:Not found the curve in question but I found this very good synthesis of the interest of the solar concentration: https://www.econologie.com/fonctionnemen ... -3491.html


Have found the comparative yield curve between photovoltaic and thermodynamic solar, as who would say "there is no photo, thermo solar advantage":

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https://www.econologie.com/forums/centrale-s ... t6097.html

It would be nice now to have the same thing for a year (or more) and for a given place ...

Otherwise here is one more escrology: https://www.econologie.com/forums/plus-gross ... t6932.html
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Re: Thousands of solar panels




by Leo Maximus » 24/07/18, 23:34

I photographed the dish a few days ago:

Odeillo 2018.JPG
Parable Odeillo 2018
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Re: Thousands of solar panels




by izentrop » 25/07/18, 08:55

Stirling is not in the right subject, moreover, the sum of the thermal / mechanical / electrical conversions, the price, the noise and the rapid wear make this technology not ready to break through http://www.formules-physique.com/categorie/361
in 2008, the solar energy conversion record was broken, with a conversion rate of 31,25%, thanks to the use of parabolic mirrors as solar concentrators7. https://fr.wikipedia.org/wiki/Moteur_Stirling
That's an overall yield of 16.5%, barely more than solar. However, solar thermal towers have the advantage of being able to store heat and restore it during hours of heavy consumption.

What is the logic of such an orientation? https://www.sudouest.fr/2017/03/01/28-c ... 7-4778.php

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I think of a flatter production curve during the day, and a higher production at the beginning and end of the day, because of a variable feed-in tariff?
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Re: Thousands of solar panels




by izentrop » 26/07/18, 01:07

Leo Maximus wrote:I photographed the dish a few days ago:

Odeillo 2018.JPG
Data here http://energie.promes.cnrs.fr/2008/DOCS ... -01-08.pdf
Cogeneration heating / electricity production and an electrical conversion efficiency still appreciable between 17 and 21,5%.
It is still promising if it comes to democratization.
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