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Closed chamber Stirling engine generator.

Started by Groundloop, February 29, 2008, 07:04:12 AM

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hansvonlieven

#30
March 04, 2008, 06:21:46 PM
G'day all,

I don't know why they would use such an idiotic system as direct heat from solar collectors such a parabolic mirrors. All you get is erratic behaviour each time a cloud passes. This problem has been solved long ago in submarines that are driven by Stirling motors. (Yes, they exist)

Instead of heating the heat exchanger directly it is embedded in a massive tank filled with aluminium oxide pellets. These pellets are heated with whatever heat source is employed. The advantage is that you get an even flow of heat into the motor  in spite of an erratic or sporadic heat source. Secondly the engine will keep running for a long time after the heat source has disappeared as the pellets store heat and only release it gradually.

Why do the guys that dream up these systems never do their homework?

Hans von Lieven
When all is said and done, more is said than done.     Groucho Marx

Groundloop

#31
March 04, 2008, 11:45:13 PM
@tinu,

I wish that I could take credit for this idea but I can not!  :D The rotary Stirling engine is invented by Robert L. Dieter and
has a US patent number 7,185,492 B2. It was filed August 3, 2005.

Groundloop.

Groundloop

#32
March 04, 2008, 11:58:00 PM
@hansvonlieven,

They use such an system as direct heat from solar collectors such a parabolic mirrors because it is much more effective than solar panels at a much lower cost.

I think that the guys that dream up these systems has more imagination then the rest of us!  ;D

Groundloop.

hansvonlieven

#33
March 05, 2008, 12:36:13 AM
Not really groundloop,

this looks like a hastily cobbled together project, using well known technology to attract investors.

Only because they have a website, passable graphics and talk big that does not give them credibility. Their project, from what I have seen, is full of holes from an engineering point of view. I doubt they have even a prototype running. This is all concept stuff.

Sorry, but this is my honest opinion until I see something more solid.

Hans von Lieven
When all is said and done, more is said than done.     Groucho Marx

Groundloop

#34
March 05, 2008, 01:09:09 AM
Hans von Lieven,

I'm not sure what web site and guys you are referring to?

Do you state that a Stirling engine generator that are powered from the Sun is not real?

Do you state that you can't get more energy from a Stirling powered system at a lowered cost
than solar panels? (Compared to the area of solar panels vs. the area of parabolic mirrors.)

Groundloop.
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