Huge GHL CHILLING Announcement

Michael, does a little more hair fall out every time you get a response to this thread? :)

Since I think I read that 'NO MORE INFO IS TO BE RELEASED UNTIL CLOSER TO THE SUMMER LAUNCH DATE' I was wondering if I could get some more information?

Seriously though, do you know of any informative sites that have information on peltier cooling in general that aren't filled with scientific lingo? The premise sounds good, but as search here on RC is currently limited to the last few weeks I can't research here.

I'm going googling but if you or Matthias have any basic peltier information you could point to, I'd appreciate it.
 
Hiya

Matthias will be best to answer this.

With regards to deposits, YES send bankers money order made out to michaels wifes Gucci habit fund!
 
Nice! I've been searching all over for something like this the last few days. Just happened upon this thread. When I think Peltier, I think "inexpensive" and efficient. When you throw in "GHL" along with that. "Inexpensive" left town. I want one.
 
Everything I read today made me think peltier is a bit more expensive than a standard compressor based chiller. Made that was just the limited information I saw... who knows.

Still, one that was made to function with this controller... well I better start saving now. :)
 
I think the old phrase "you get what you pay for" is very true, especially with GHL, yes there are cheaper alternatives, but do they function as well and are they as well supported and future driven?

Dont get too concerned with the price, as with everything GHL brings out it has still to be maintstream affordable otherwise there would be no market.
 
Totally untrue and complete opposite from anything you will read about peltier.

This is the way forward for all chilling, both effcient and highly reliable
 
i dont want to contradict you, im not a thermodynamics expert and i am aware of wikipedia not being the ultimate resource in terms of accuracy but i just lifted this from there.


Thermoelectric junctions are generally only around 5â€"œ10% as efficient as the ideal refrigerator (Carnot cycle), compared with 40â€"œ60% achieved by conventional compression cycle systems (reverse Rankine systems like a compressor). Due to the relatively low efficiency, thermoelectric cooling is generally only used in environments where the solid state nature (no moving parts, maintenance-free) outweighs pure efficiency.

And this from the PEswiki (pure energy systems)

"The disadvantage of the Peltier Effect refrigerator is that it's not very powerful, nor is it very efficient, but it is very reliable, because it has no moving parts." (http://www.abc.net.au/science/k2/homework/s95611.htm)

Just two from google when i input "peltier cooling efficient"

Im not saying its a bad idea either, i can see applications for it but curious about power consumption which yes i know details will follow on.
 
The reason why Peltier outways standard noisy, high maintenance and running cost compressor style chillers for the home enviroment (bearing in mind most end up in peoples living spaces in one way or another), is that in the reef enviroment, high output is not always required and the hobbyist requires a high level of low maintenance longevity (no moving parts) and silent running, something you do not get with compressor styles, and they are smaller.

You will find most leading brands will be switching to this method. But of course as with any product, some may feel it does not suit them, where as others will love it, personal choice

But for most the winning factor is -

Size
Low running cost
quiet running
longevity with little maintenance
Cooling and heating from one device

More details will follow closer to the time
 
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Im not going anywhere with it at all, i am as keen as the next person to see innovation, maybe even more so. I think this unit has an excellent and very very useful application in a chilled feeding system such as highlighted by Elzool in the suggestions thread.

Since you are already coming out with a peltier cooling module, how about adapting it for a frozen food feeder that can be completely controlled by the Profilux?
Click to expand...

I was just thinking outloud on the efficiency front and the potential electrical costs if someone wished to use the unit to cool a tank, that is all.
 
Naturally (I know100%) GHL appreciate everyones comments and excitment at the prospect of the latest innovations that they are launching.

GHL have a very good history of taking genuine users ideas and implementing them, you will see this a lot in the software releases, GHL are probably THE only manufacturer that adopts the users ideas and listens to the end user so much.

This has its draw backs also, especially when a new product is announced, everyone has their own take on it and what other things they may want added to it functionality, this is all great in theory, but just like any manufacturer, the level of investment, time and development for that one requested feature has to be proven to have a marketable need that will not only pay for itself, but also move the company and the product forward.

I have not spoken to GHL directly about this suggestion, so i speak as i find, but i personally do not see this (good) suggestion being a runner especially when the product has not been launched yet and no further details are made available.

But as with all things GHL "You never know"

Nice photos by the way on your website :eek1:;)
 
Update: the prototypes are working!

We need now a good name for the babe!
My wife had the idea "Chill'n Heat Box".
Any recommendations?
 
"Dave", or maybe "Adrian"? Those are good names right?
How about plain old "Temperature control Unit" or "TCU"
"thermal stabiliser", "temp-o-tron" or "robo-therm"?
:-)
 
Temperature Stabilizer System T.S.S.
Aquarium Temperature Control A.T.C.
Ultra Silent Aquarium Frezzer U.S.A.F. XDDDD

The best of all ... Free Chiller system by GHL :DDDD
 
I'm running a highly efficient refrigeration chiller (Teco/Seachill TR20) which works well. Problem with these units is they are either on or off, temp will climb then once unit turns on then the water temp will drop fast. Setting the hysteresis too low to minimize swings, and the compressor will fail prematurely from short cycling. And coolant leaks are always a concern; it has happened in two of my residential air conditioners and a very expensive Sub-Zero kitchen refrigerator and aquarium chillers are not immune from it.

The Peltier chillers may be less efficient in theory, and they definitely can pull a lot of electricity. But there are no moving parts aside from fans, so short cycling is a non-issue, and there is no refrigerant to leak out. Reliability should be vastly better than conventional units for these reasons. And if they can be run at partial/variable power, rather than only on or off, much finer temperature control can be achieved.

I looked into Ocean Geotronic Peltier units before and almost bought one. Cost was about double the TR20 which was the ultimate deciding factor.

I am definitely very interested in the forthcoming GHL unit! Look forward to more specs and pricing when available.
 
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