Central and solar engine: Themis, Almeria, Stirling SOLO

[Christophe]

Synthetic topic bringing together links on the solar thermodynamic and Stirling solar power plants allowing to transform the solar heat into electricity (with a yield far superior to the PV panels) or to produce solar hydrogen (== condensed solar energy)

To be completed by your links if possible.

Principle of operation: https://www.econologie.com/energie-mecan ... -3136.html
Small report:
solar-photovoltaic / solar-power plants-the-electro-thermal-on-france2-t2563.html
Solar Stirling:
https://www.econologie.com/moteur-stirli ... -3141.html
http://www.stirling-engine.de/solare_en ... steme.html
New Central Almeria:
solar-photovoltaic / solar-thermodynamic-Central de 100-mw-en-spain-t2966.html
http://www.actu-environnement.com/ae/ne ... _3246.php4
Jean Luc Perrier's work: solar hydrogen
https://www.econologie.com/le-solaire-co ... -3224.html

2 Solar Millenium documents:
https://www.econologie.com/les-centrales ... -3490.html
https://www.econologie.com/fonctionnemen ... -3491.html

Edit, the Desertec project: solar-photovoltaic / Desertec-operate-energetics-of-deserts-t5338.html

Schematic diagram:

concentrator-solar-pic759.jpg (54.81 KIO) Accessed 8591 times

[Tagor]

Synthetic topic bringing together links on solar thermal and Stirling solar power plants allowing

To be completed by your links if possible.

solar towers
http://fr.wikipedia.org/wiki/Tour_solaire

[Christophe]

Mmm good addition, I had not thought of solar towers but the ones you gave are not really econologically "efficient" (especially given the height to be reached), here are others (proto) much more efficient (well according to the author ...):

https://www.econologie.com/forums/tours-aero ... t3801.html

[Christophe]

2 downloads:

https://www.econologie.com/les-centrales ... -3490.html
https://www.econologie.com/fonctionnemen ... -3491.html

[loop]

Hello

A little thought about an idea for which I did not find an application on the net
The place may not be the right one, I'll let you move it if necessary

Description

A thermal engine (conventional or stirling) generates 40% mechanical energy and 60% thermal energy (generally undesirable except for the pantoneous)
A heat pump requires mechanical energy (usually provided by an electric motor) and is efficient if the water outlet temperature is rather low
Rather than burning fuel for heating, would not it be wise to run a heat pump engine with the same fuel (or a solar engine?)
The heat engine drives the pump compressor, the water at the pump outlet regains calories around the engine to reach the 60 °
Advantage, the low temperature heating floors not being generalizable in the existing hearths, one could replace the traditional boilers by a system more powerful and adapted to the convective radiators and why not, to depollute with the escape of the boiler with a Pantone

Good reflection
If the idea is bad, I will not hurt myself
Our good old planet has no self-love

[Christophe]

Rather than burning fuel for heating, would not it be wise to run a heat pump engine with the same fuel (or a solar engine?)

I do not know if we are talking about the same thing but if your idea is to use a cogenerator to supply a heat pump, we had already thought about it.

A heat engine of a cogenerator actuating (either by direct coupling or via a generator) the motor of a heat pump and this is the guaranteed "overunit".

In fact, roughly speaking, here is the thermal balance that such an installation would have:

- 30% mechanical coupled in direct drive to an average COP of 3 COP would give 90% recoverable thermal. In the case of a generator this figure should be reduced by the efficiency of the generator. The overall thermal balance would not be much changed.

- 65% thermal whose recoverable 80% is 52% thermal.

Overall COP of the installation: 56 + 90 = 156%

For each Joule of fuel, we therefore have almost 1,6 Joule of usable heat! The use of short-cycle biofuels (HVB style) would further reduce the CO2 and environmental balance, something currently inconceivable for "centralized" plants.

It's much better (for the planet) than the COP 3 heat pump only since it would only have a global COP of 3 * output of the power plant = 3 * 35% = 105% overall for nuclear.

Small note: with the same reasoning, At the CO2 level, it is better to have a good oil boiler than an 3 medium COP heat pump powered by an oil fired power plant. (given the various losses, especially online) or worse a coal plant (30% of electricity in Germany for example)

[Tagor]

2 downloads:

https://www.econologie.com/les-centrales ... -3490.html
https://www.econologie.com/fonctionnemen ... -3491.html

http://www.stirlingenergy.com/breaking_news.htm
SES announces power plants 300 has 900 MW is this real?

it seems so, there is a video here

http://www.nextenergynews.com/solarpower/solar37.html

I hope it's not synthetic images

[Christophe]

http://www.nextenergynews.com/solarpower/solar37.html

I hope it's not synthetic images

It does not look like it at all ... on the other hand it is filmed in time-lapse (see the last shot), normal given the inertia of the "dishes" ...

As far as power is concerned, 900MW is a nuclear reactor. This seems to me so huge for a single unit, however, and this unlike conventional plants, it is easy to add additional units to increase the power ...

Anyway the calculation of approximation is done quickly enough: taking 1kW per m² of dome and multiplying it by the generator output ...

Example in this video: surface of the dome estimated at the ladle 50 x 50 = 2500 m² is 1 MW (which is already considerable) with a stirling performance of 40% ...

The advantage of thermodynamic solair is, in my opinion, to be the more constant renewable energy. Imagine power stations in the Sahara ... only weak point: no (or little) production at night and distance between the source and the user ...

Finally the night ... it is a false problem because on the planetary scale it never exists entirely so some megacentrales placed wisely on the deserts of the planet and the problem of the electric energy is settled ... for centuries ... In addition the desert advance ...

Well, Mr. politicians ... Yapluka!

[toto65]

Hello,
the download of this link does not work.
https://www.econologie.com/les-centrales ... -3490.html
Is it me?
Thank you

[Tagor]

Hello,
the download of this link does not work.
https://www.econologie.com/les-centrales ... -3490.html
Thank you

indeed there is some concern