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SgtSixpack

Junior Member

Added a temperature sensor but its connected to a qudro not high flow next.

Dienstag, 15. April 2025, 20:31

The connection wasn't right so I connected it to the quadro. I see the temperature of the coolant in my loop after the radiators; and the high flow next is after the cpu & gpu block.

I want to manually make a calculation of power in the playground.

What is the equation I need?

Speedy-VI

Senior Member

RE: Added a temperature sensor but its connected to a qudro not high flow next.

Mittwoch, 16. April 2025, 01:59

The connection wasn't right so I connected it to the quadro. I see the temperature of the coolant in my loop after the radiators; and the high flow next is after the cpu & gpu block.

I want to manually make a calculation of power in the playground.

What is the equation I need?
Here you go.

SgtSixpack

Junior Member

Mittwoch, 16. April 2025, 12:04

Thanks so much! :thumbsup:

I guess its down the the accuracies of the temperature sensors. My value is currently zero.

Dieser Beitrag wurde bereits 1 mal editiert, zuletzt von »SgtSixpack« (16. April 2025, 16:06)

Remayz

Senior Member

Mittwoch, 16. April 2025, 20:07

don't you have the sensors inverted? that would give a negative value that aquasuite may default to 0 maybe

SgtSixpack

Junior Member

Mittwoch, 16. April 2025, 21:26

don't you have the sensors inverted? that would give a negative value that aquasuite may default to 0 maybe

I have my cold water readout higher than my hot water readout. I put that down to inaccuracy of the sensors. Aquasuite has the ability to offset the values but at that point it makes a calculation based on your own offsets. I have an air sensor which I find more believable against the hot water temp (after cpu+gpu block). I've just added my Mo-Ra IV 600 to the loop and that shows difference between the two sensors.

I'm also not using distilled water - so the calculation itself doesn't apply. Also not sure how litres get converted to kg in the calculation. All in all its a hot mess trying to calculate power dissipated.

I've got my Mo-Ra set to a target temp of 35'c and my internal radiators set to 36'c and my internals fans don't spin up above a minimum. Without the Mo-Ra the internals alone would end up 38'c at full speed. My flow rate has dropped 50lph to 300lph with a dual ek pump and a single heatkiller Mo-Ra pump. I have a 3m run to the external radiator.

Edit: Just changed my reading for the cold temp and now getting a reading. I'd say its all relative. I expect the cooling capacity to change when under load.

Dieser Beitrag wurde bereits 1 mal editiert, zuletzt von »SgtSixpack« (16. April 2025, 21:42)

Remayz

Senior Member

Mittwoch, 16. April 2025, 22:43

it's not cooling capacity, it's dissipated power. so yes it will change with load

SgtSixpack

Junior Member

Freitag, 18. April 2025, 18:12

I asked on a Physics forum to explain the Math I didn't get:
https://www.physicsforums.com/threads/ca…hanger.1079848/

Remayz

Senior Member

Samstag, 19. April 2025, 05:27

If you use a water based coolant, like corsair's, EK cryofuel etc.. the additives are so minute you can consider it like distilled water for the calculation. they won't change much.
For DP ultra which is 20-35% glycol, the specific heat drops a bit, but you can still keep the same number if you like. those NTC sensors are not exactly precise, and are not calibrated so the whole calculation is more for shows, to get a rough idea of how many watts your rads take out.

For glycol i found this table :



I arbitrarily use 30% concentration at 30°C on mine, so the specific heat goes from 4185 for water, to 3828 for the glycol mix. basically negligible for our use.
The flow sensor is somewhat accurate, but the NTCs are crap, and we don't know the exact % of glycol, so we just stack margins of error to get a very symbolic value ^^'
"good enuf"

InfoSeeker

Senior Member

Samstag, 19. April 2025, 13:28

don't you have the sensors inverted? that would give a negative value that aquasuite may default to 0 maybe

I believe which sensor is high, or low, doesn't matter... the absolute delta is used.