EK AIO Tear-Down & Disassembly vs. Arctic Liquid Freezer II, NZXT Kraken X63
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Date: 2020-06-20
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Comments and reviews: 10
Waldemar
Q: How big of a drop in the performance there would be without the fins on the plate?
I am asking as these fins cost a lot to manufacture and it makes me wonder if it does make sense for bottom range watercooling?
I want the cheapest all-aluminium setup. I care more about radiators that are outside of the case. Right now, my system is loud when compiling and I want a better machine in the future - like 12cores/24th with RTX 2060, both watercooled.
I do not care about high-end performance. I just want a quiet PC and live in a climate where 28deg Cel (82F) in the room is a standard temp for four months.
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Q: How big of a drop in the performance there would be without the fins on the plate?
I am asking as these fins cost a lot to manufacture and it makes me wonder if it does make sense for bottom range watercooling?
I want the cheapest all-aluminium setup. I care more about radiators that are outside of the case. Right now, my system is loud when compiling and I want a better machine in the future - like 12cores/24th with RTX 2060, both watercooled.
I do not care about high-end performance. I just want a quiet PC and live in a climate where 28deg Cel (82F) in the room is a standard temp for four months.
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Vitor
Bigger Stator (electromagnets) usually means more torque. Considering that both pumps have the same pump loses/efficiency more torque means higher head pressure (Water Head High).
And considering that both pumps with same pump loses/efficiency and are rotating at the same speed a bigger impeller (the pump blade) means high flow (Liter per Minute).
That is where my knowledge ends... Idk how the size of the Stator effects speed. I think the speed of the motor is more related with the thickness of the Magnet Wire used to coil the Stator them its size. Someone correct me if I'm wrong.
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Bigger Stator (electromagnets) usually means more torque. Considering that both pumps have the same pump loses/efficiency more torque means higher head pressure (Water Head High).
And considering that both pumps with same pump loses/efficiency and are rotating at the same speed a bigger impeller (the pump blade) means high flow (Liter per Minute).
That is where my knowledge ends... Idk how the size of the Stator effects speed. I think the speed of the motor is more related with the thickness of the Magnet Wire used to coil the Stator them its size. Someone correct me if I'm wrong.
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dandel351
Those hoses popped out easy because they have to be a little loose to swivel. This AIO looks like it has a bit of promise. The long term test will show if it has any gunk issues. But if it does it looks like it would be easy enough to just put it on a bench , drain it , clean it out then re-fill it with distilled water or your choice of coolant. Then return it to service.
I want someone to build an AIO that uses a bolt in D5 pump. Then you would have tons of volume and pressure. Best of both worlds that way. It wouldn't be pretty to look at but it would run like a boss.
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Those hoses popped out easy because they have to be a little loose to swivel. This AIO looks like it has a bit of promise. The long term test will show if it has any gunk issues. But if it does it looks like it would be easy enough to just put it on a bench , drain it , clean it out then re-fill it with distilled water or your choice of coolant. Then return it to service.
I want someone to build an AIO that uses a bolt in D5 pump. Then you would have tons of volume and pressure. Best of both worlds that way. It wouldn't be pretty to look at but it would run like a boss.
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scotty
You can see that EK have put the stator of their motor on the outside of the magnetic rotor because of their much more complex impeller design. The NZXT on the other hand has a cup shaped magnetic rotor with the stator on the inside, hence the smaller coils. At a guess I would say that the EK pump would spin faster though as their impeller design is less prone to cavitation and a more advanced design in general. Looks like it pumps out of the black base, through the radiator then into the top white reservoir with a bleed across the cold plate.
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You can see that EK have put the stator of their motor on the outside of the magnetic rotor because of their much more complex impeller design. The NZXT on the other hand has a cup shaped magnetic rotor with the stator on the inside, hence the smaller coils. At a guess I would say that the EK pump would spin faster though as their impeller design is less prone to cavitation and a more advanced design in general. Looks like it pumps out of the black base, through the radiator then into the top white reservoir with a bleed across the cold plate.
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Mortlet
The discoloration actually looks to me like they added a corrosion inhibitor to the coolant, in stead of just treating the metal surfaces and then flushing them, which can sometimes cause excess precipitation and deposition, especially onto little bits of copper floating around (again, just a QC issue).
My biggest concern would be the material of the cold-plate. Just make sure that it's not simply copper plated brass that they're trying to get away with using.
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The discoloration actually looks to me like they added a corrosion inhibitor to the coolant, in stead of just treating the metal surfaces and then flushing them, which can sometimes cause excess precipitation and deposition, especially onto little bits of copper floating around (again, just a QC issue).
My biggest concern would be the material of the cold-plate. Just make sure that it's not simply copper plated brass that they're trying to get away with using.
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Jad
i couldn't tell from the nzxt because you didn't show which part moves (the magnet) but if NZXT's magnet is the outer ring that i see, it means that the NZXT is using an Outrunner motor design, while the EK uses an Inrunner motor design, since the magnet is inside the coil. the advantage of outrunner motor is more torque. the advantage of inrunner is more efficiency. thats all i could tell. but outrunner motors can be smaller and output the same power.
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i couldn't tell from the nzxt because you didn't show which part moves (the magnet) but if NZXT's magnet is the outer ring that i see, it means that the NZXT is using an Outrunner motor design, while the EK uses an Inrunner motor design, since the magnet is inside the coil. the advantage of outrunner motor is more torque. the advantage of inrunner is more efficiency. thats all i could tell. but outrunner motors can be smaller and output the same power.
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danmc_27
Hey Steve,
Someone has probably already said something on it and with greater authority than I can claim but my best bet for the much larger armature on the EK motor is to increase the torque, making up for it being an 'in-runner' motor and to help ensure longevity with this design perhaps having to overcome a few extra short-comings in order to avoid patent infringement.
Great vid as usual. Cheers,
Dan
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Hey Steve,
Someone has probably already said something on it and with greater authority than I can claim but my best bet for the much larger armature on the EK motor is to increase the torque, making up for it being an 'in-runner' motor and to help ensure longevity with this design perhaps having to overcome a few extra short-comings in order to avoid patent infringement.
Great vid as usual. Cheers,
Dan
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You
Its not a magnet its an armature, the magnet was on the impeller. 14:55 Also you can most likely test the strength of these pumps using a gauss meter, and figure their efficiency by comparing power usage, rpm, flow vs the magnetic strength. Endurance on motors like these is hampered on these sorts of motors by water ingress tolerance, insulation quality on the windings, and the heat/power limits on the circuitry.
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Its not a magnet its an armature, the magnet was on the impeller. 14:55 Also you can most likely test the strength of these pumps using a gauss meter, and figure their efficiency by comparing power usage, rpm, flow vs the magnetic strength. Endurance on motors like these is hampered on these sorts of motors by water ingress tolerance, insulation quality on the windings, and the heat/power limits on the circuitry.
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John
Steve: the number of poles affects frequency but the more poles, the lower the rpm. Since the digital clock can be sped up, you can get whatever rpm you wish by speeding up the clock, and if that clock is constant, the more poles the slower the rpm. Also, the pump suction is usually the center where it sucks. Water is flung to the outside edges where the outlet is.
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Steve: the number of poles affects frequency but the more poles, the lower the rpm. Since the digital clock can be sped up, you can get whatever rpm you wish by speeding up the clock, and if that clock is constant, the more poles the slower the rpm. Also, the pump suction is usually the center where it sucks. Water is flung to the outside edges where the outlet is.
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GIORGIO
Yup. Let me simply say- I inquired about that which, apparently you covered MONTHS AGO!- And I was RIGHT about you Gamers Nexus! The force is strooong with you!(Lol).
Great job- helped me tremendously, and I got an Arctic 2 before they sold out thanks to your report on that product! I told ya it's more than you guys may think you have...
Keep it up!
reply
Yup. Let me simply say- I inquired about that which, apparently you covered MONTHS AGO!- And I was RIGHT about you Gamers Nexus! The force is strooong with you!(Lol).
Great job- helped me tremendously, and I got an Arctic 2 before they sold out thanks to your report on that product! I told ya it's more than you guys may think you have...
Keep it up!
reply
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