With cogeneration turbine Rankine

[MICROTECH]

Hello everybody

Following the search for an engine to generate electricity on board an electric boat using solar thermal panels, I find new things.

No risk no fun. But it is a little because of the "risks" that I drop my project to develop the double-acting four-cylinder Stirling. Because it requires flame and high pressure to operate. And few people want to support me to set things on fire in the cellars of the neighbors or the boats.

On the other hand, my goal of producing electricity with heat remains valid. And as I assure the old techno, the principle of the Scroll turbine as an Ericson engine has evolved:

The Scroll is found in the automobile and the generator can be a DC motor. Previously the Scroll was in an airtight case with a tri and very expensive motor of the order of 1500euro. At Sanden the piece is $ 350
http://www.sanden.com.sg/opencms/opencm ... ?ptid=1005

Then other company produces the already modified compressor as an expander and it allows to consider building small units that use solar heating as here:
The Air squared company manufactures the elements of the machine:
http://www.airsquared.com/
A design example:
http://organicrankine.com/orc_documents ... 2N4.25.pdf
A realization with auto parts.
http://organicrankine.com/orc_documents ... cosmos.pdf
So much for the Scroll.

But there is also another surprise, a reducing compressor: It is a real turbine which works with hot water and refrigerant gas, produces electricity from 1Kw to 12Kw with the IT10 model we can train a three-phase generator as MARS (DCTri 48V) or Lynch DC 48V

http://www.infinityturbine.com/ORC/Buil ... kw_hr.html

Turbines are very expensive at infinityturbine $ 15000, but the visit is worth a look to understand that there is little difference between a compressor turbine of a broken automobile turbo compressor and an expansion turbine "expander" for operate the Rankyne gas cycle at low temperature 80 ° C to 14 ° C.

[dedeleco]

Very interesting achievements !!
Personally I am seduced (and admiring) by the achievements with thermoacoustics, quite simple, tubes, without moving parts pistons, seals, turbines, leaks, and associated wear, and very remarkable, but with the need to understand the subtleties less conventional physics than turbines and pistons. :
http://en.wikipedia.org/wiki/Thermoacou ... air_engine
http://fr.wikipedia.org/wiki/Thermoacoustique
http://www.americanscientist.org/issues ... issue.aspx
http://en.wikibooks.org/wiki/Engineerin ... oacoustics
even useful:
http://arstechnica.com/old/content/2007 ... ations.ars
http://en.wikipedia.org/wiki/Pulse_tube_refrigerator
http://www.coolsound.us/
http://www.coolsound.us/technology.html

With very successful commercial achievements !!
I think that others are very possible for this fairly new, underused domain, with an origin almost as old as steam engines and Stirling:
http://en.wikipedia.org/wiki/Rijke_tube
but remained unused until recent years, because this physics is less visible and elementary than that of pistons or turbines.

[MICROTECH]

Hello,

Same problem as for the Stirlings, because to operate the "acoustic lasers and other resonance generators require a large temperature difference, for the concentrator solar and for the mobiles more or less renewable fuels. But the devices are remarkably compact, c ' is like trying to compare a low frequency mains supply to a high frequency resonant converter ... and would be possible at higher efficiency to train electric planes and build us quiet and reliable automobiles because the total absence of moving parts promotes longevity The piston is a shock wave, the generator a piezo, the starter also, the regenerator, the hot and cold exchanger are ceramics ... The heat is sucked by a heat pipe to move the generator away from the heat.

The best, I think, is Lee Fellow. And its achievements are concrete with levels of industrial power: http://www.io.com/~frg/history.htm.

But for us and in concrete terms, it seems to me that it is becoming possible to produce ORC electric generators that use low temperature water with an overall yield equivalent to a photovoltaic solar panel. But the difference lies in its availability because it is possible to store heat with thermal batteries using waste from the petroleum industry such as paraffin. Some have a melting temperature of 80 ° C. In addition it is always possible to heat water by a simple means, wood stove, gas stove etc to urgently recharge a deficient electric battery. Under the same conditions, starting a generator will be mainly a nuisance.

[dedeleco]

Very interesting and useful, but the link does not work and google gives the right one:
http://www.io.com/~frg/

Even more reasons to be seduced by these systems without mobile mechanics and to see if they cannot be simplified with good performance ???.

All the achievements are interesting !!

There are lots of compounds to store heat, fusion, dehydration, etc., but one problem is the amount needed for one hour of ORC giving 300W for example as the real Japanese article cited.
http://organicrankine.com/orc_documents ... cosmos.pdf

[Christophe Triscornia]

FYI, the Swiss company Eneftech markets ORC micro-cogeneration systems using scroll technology:
www.eneftech.com

[Christophe]

Lots of good info on Rankine's organic cycle here: http://www.cycle-organique-rankine.com/

We also talk about it in this subject from the zimmer message: https://www.econologie.com/forums/moteurs-st ... 3-110.html