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[Hexus]Raijintek demonstrates passive AiO liquid cooler

post #1 of 69
Thread Starter 
Quote:
For those who choose an all-in-one liquid cooling solution hoping for greater cooling efficiency and noise reduction but are peeved by the different noise profile emanating from the cooler pump and/or actively cooled radiator there may be a solution on the way. PC components and accessories maker Raijintek has been demonstrating a passive liquid cooler at Computex 2016 in Taipei.
Quote:
As explained by TechPowerUp, which witnessed the cooler in action, this closed loop AiO cooler has no moving parts. Rather the heatsink warming up induces the specially formulated cooling fluid within to flow around the close loop. Thus the system doesn't require a pump (potential for noise and failure) and eschews cooling fans in the radiator portion, cutting out another potential noise/moving parts failure source.

The liquid flows thanks to the same science behind how heat-pipes work. TPU elaborates; "Heat from the source (your CPU) causes the special coolant to change phase to vapour, move to the heat-exchanger (radiator), where it condenses back to liquid, and flows back down to the block." Another report on the cooler by BitTech informs us that the "special coolant boils at under 40°C, and different sized pipes to create a pressure imbalance and force the liquid to evaporate in one direction only and thus generate flow."

http://hexus.net/tech/news/cooling/93404-raijintek-demonstrates-passive-aio-liquid-cooler/?utm_source=dlvr.it&utm_medium=facebook
post #2 of 69
Maybe somebody at Rajintek has a Model T

The T engine's cooling system reflected the T's simplicity design theme. The first few hundred Model Ts had a water pump, but it was eliminated early in production. Instead, Ford opted for a cheaper and more reliable thermosyphon system. Thermosyphon was a common engine-cooling method of the era. Hot water, being less dense, would rise to the top of the engine and up into the top of the radiator, descending to the bottom as it cooled, and back into the engine. (This was the direction of water flow in most cars which did have water pumps, until the introduction of crossflow radiator designs.) The thermosiphon system was susceptible to overheating if worked heavily, but served well for most Model T usage.

Many types of water pumps were available as aftermarket accessories.
post #3 of 69
2 Reason it won't work.

Tested with a 480mm radiator, it failed.
https://martinsliquidlab.wordpress.com/2012/02/04/passive-0-rpm-fans-radiator-test/

Tested with a kilo of aluminium, it ran hotter than stock intel cooler.
http://www.hardwaresecrets.com/zalman-fx100-cpu-cooler-review/7/
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post #4 of 69
Quote:
Originally Posted by TheLAWNOOB View Post

2 Reason it won't work.

Tested with a 480mm radiator, it failed.
https://martinsliquidlab.wordpress.com/2012/02/04/passive-0-rpm-fans-radiator-test/

Tested with a kilo of aluminium, it ran hotter than stock intel cooler.
http://www.hardwaresecrets.com/zalman-fx100-cpu-cooler-review/7/

Did you read the article? It's not water in that cooler.

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post #5 of 69
Thread Starter 
It cooled off boiling water (TPU witness it first hand).
post #6 of 69
Another reason why it won't work: the entire radiator needs to be above your CPU.

In the image below, most of the radiator is on the same level as the cold plate. It's not going to do jack like that.

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post #7 of 69
Quote:
Originally Posted by iLeakStuff View Post

It cooled off boiling water (TPU witness it first hand).

Yeah, looks pretty legit to me. 

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post #8 of 69
Quote:
Originally Posted by JedixJarf View Post

Quote:
Originally Posted by TheLAWNOOB View Post

2 Reason it won't work.


Tested with a 480mm radiator, it failed.
https://martinsliquidlab.wordpress.com/2012/02/04/passive-0-rpm-fans-radiator-test/


Tested with a kilo of aluminium, it ran hotter than stock intel cooler.
http://www.hardwaresecrets.com/zalman-fx100-cpu-cooler-review/7/
Did you read the article? It's not water in that cooler.

Doesn't mean the liquid will do magic.

Martin tested a 480mm rad with a 100W heat load and it performed miserably.

Are you saying a tiny radiator without a pump is going to do better than a 480mm radiator with a pump?


Also, that little boiling water is nothing.
Edited by TheLAWNOOB - 6/1/16 at 1:11pm
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post #9 of 69
Quote:
Originally Posted by TheLAWNOOB View Post


Doesn't mean the liquid will do magic.

Martin tested a 480mm rad with a 100W heat load and it performed miserably.

Are you saying a tiny radiator without a pump is going to do better than a 480mm radiator with a pump?

 

Quite possibly depending on the solution used... If it cooled off boiling water... then I don't see the issue. It probably wont preform as well as a high end AIO, but for a silent PC it could be neat.

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post #10 of 69
Quote:
Originally Posted by JedixJarf View Post

Quite possibly depending on the solution used... If it cooled off boiling water... then I don't see the issue. It probably wont preform as well as a high end AIO, but for a silent PC it could be neat.

They only have like 200ml of boiling water. It would cooldown even if they don't put the CPU block in there.

I'd like to see them putting it on an i3 and watch it overheat.

Also, there's no way that liquid movement due to difference in temperature will come close to amount of liquid moved by a pump.
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