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General Category => News and gadgets => Topic started by: kam on March 03, 2008, 14:04:29 PM

Title: New powerless fans
Post by: kam on March 03, 2008, 14:04:29 PM
This is something new!

New powerless fans that they suppose to cool cpu. Check the how it works video here (http://www.youtube.com/watch?v=vG36EIFNI-Y) and look at the foto. I really do not like the idea much.


(http://gizmodo.com/assets/resources/2008/02/string-engine-fan.jpg)
Title: Re: New powerless fans
Post by: Mosquito on March 04, 2008, 14:10:43 PM
I think this is the stirling engine cycle (http://auto.howstuffworks.com/stirling-engine2.htm). It is very familiar. check the link.

Title: Re: New powerless fans
Post by: tpone on March 04, 2008, 16:20:06 PM
It is definitely a stirling engine. Actually, as hot as the CPU gets, the most faster it runs. But i do not know if it is efficient enough when the outside temperature is high, because it uses the outside temperature to move. Actually, it uses the temperature difference.

I would wait a couple of years until i would use it. I prefer some electro-moved gizmos!
Title: Re: New powerless fans
Post by: Andre on March 04, 2008, 19:07:36 PM
You should be more trustfull to new products. I do not beleive that they would sell a product without having it under test. I beleive it is reliable.
Title: Re: New powerless fans
Post by: manley_V on March 04, 2008, 23:50:47 PM
People i've seen that gadget and it really works. Actually is not something new. It was discoveres many years ago, but now MSI put it to work!
Title: Re: New powerless fans
Post by: spic0m on March 10, 2008, 03:01:29 AM
Stirling motor is existing many years ago, its not a new idea.
The only prob with MSI's gizmo is that for the whole thing start to operate the cpu must reach 60 degrees celsius. Of course during boot up the cpu is stressed at its full and that temperature should be easily reache d and the engine should start shortly after but i dont like the thought my cpu heat up at 60 degrees and then
a fan triyng to cool it down after that.
Title: Re: New powerless fans
Post by: kam on March 10, 2008, 09:05:10 AM
Wow 60 degrees to start cooling. I really do not like the idea. And if the ambient temperature is 45 degrees? Wat then? Because as far as i know, this kind of motor will work using not (only) the heating surface, but the difference of temperature between it's thermal plate and ambient temperature.
Title: Re: New powerless fans
Post by: spic0m on March 10, 2008, 23:45:27 PM
I pressume that the coolest your cpu can go then is 45 degs but i think that stirlings have a 70% efficiency so if you live in africa its out of the question  ;D  ;D  ;D
Title: Re: New powerless fans
Post by: Andre on March 11, 2008, 07:46:53 AM
 ;D
Is it sold to all geographical places or only over 40 degrees?  :)
Title: Re: New powerless fans
Post by: spic0m on March 14, 2008, 00:17:05 AM
I dont believe they have pc's in haystack houses in Maputo Africa  :)
Title: Re: New powerless fans
Post by: kostas on March 17, 2008, 08:12:40 AM
lol! there are also warm places on earth
Title: Re: New powerless fans
Post by: spic0m on March 18, 2008, 22:21:14 PM
Anyway, i believe all pc's should be watercooled and the peltier project discussed in another topic is far more efficient an overall better.  :D
Title: Re: New powerless fans
Post by: kam on March 19, 2008, 18:29:52 PM
By far more efficient. But i think it is energy CONSUUUUUUUMING :-X
Title: Re: New powerless fans
Post by: spic0m on March 19, 2008, 21:12:01 PM
Lol i have my peltier, flow calculator and temp meter!
Have you got any space to upload a pic?
Title: Re: New powerless fans
Post by: kam on March 19, 2008, 22:56:45 PM
Lol i have my peltier, flow calculator and temp meter!
Have you got any space to upload a pic?


Of course we have. Under the message area when you post a message there is a cross that writes: Additional options

Click it and behold!
Title: Re: New powerless fans
Post by: spic0m on March 20, 2008, 19:40:10 PM
Here are my litlle stuff!  *drool *drool
Title: Re: New powerless fans
Post by: kam on March 20, 2008, 20:16:47 PM
so, are you starting a new projectlog or what?
Title: Re: New powerless fans
Post by: Stefano on March 20, 2008, 23:15:24 PM
Here are my litlle stuff!  *drool *drool

The white thing top right of photo, i do not believe this is the pump e?
And the other T style on the left? What is this?
Title: Re: New powerless fans
Post by: spic0m on March 21, 2008, 09:39:02 AM
From the left we have, a thermosensor, a 80w peltier, and a flow control meter.
And yes, i am thinking a long time now to make a new pc case from scratch with watercooling and lcd display and all that funky stuff. My main prob is that i cannot decide the final shape of the case, too many good ideas, too many probs to solve but its time i put this on a schedule.
Title: Re: New powerless fans
Post by: kam on March 21, 2008, 21:30:56 PM
Come on man! Make the engine and think of the chassis later!
Title: Re: New powerless fans
Post by: spic0m on March 21, 2008, 23:21:23 PM
Not a bad idea indeed.