Does increasing pump speed equal lower temps?

[Master Disaster]

As topic title, wondering if increasing pump speed equates to lower temps or if it will just work the pump more for no extra benefit?

 

Thanks guys and gals

[Comessy]

I think Linus said somewhere that it doesn't but I don't remember where

[QueenDemetria]

As topic title, wondering if increasing pump speed equates to lower temps or if it will just work the pump more for no extra benefit?

 

Thanks guys and gals

No, in fact with some setups it will increase temperature. For the most part pump speed has little effect, but there is a sweet spot that you have to find if you want optimal efficiency.

[Master Disaster]

I think Linus said somewhere that it doesn't but I don't remember where

 

I can fully understand that theory, when i thought it through i came to the same conclusion as the water being pumped around is the same temp no matter how fast its moving around the loop however its always good to ask the people who know these things

[blackadder]

It can but, it can hurt too. You want the water to be at the spot where it has the most surface area to dissipate heat but, you want the water to move because at the moment you lose any heat you want the hotter water the replace that water. At some point the water will be at a  constant temperature if you put out enough heat and then you will reach your max load temp.

[manikyath]

 

trust the pros.

(TLDR: pump speed doesnt matter)

[VioDuskar]

I can fully understand that theory, when i thought it through i came to the same conclusion as the water being pumped around is the same temp no matter how fast its moving around the loop however its always good to ask the people who know these things

this is true. eventually the water will absorb as much heat as it can based on it's volume, this is called the heat capacity. the heat capacity is determined by a liquid's (or solid's) specific heat.

 

once the water reaches it's maximum heat capacity it will be the same temp throughout the loop. then it cannot dissipate at a rate equal too or greater than it can draw heat out of the components.

 

as people have said, increasing pump speed can be harmful, but this is only if the water is circulating so fast that it doesn't allow heat to dissipate at the maximum rate when inside the rad. this almost NEVER happens (maybe at startup), because then the water would be at full heat capacity, and would eventually heat the Rad evenly at all points, dissipating evenly, negating the harmfull effect.

 

once your loop gets up to temp a few things will happen:

1:the temp will be the same throughout the loop,

2:you will reach maximum cooling via maximum dissipation through your rads

3:the water will no longer be dissipate more than it can absorb.

 

this isn't to say once it reaches nominal temps that it won't get hotter under load. it will. because it will simply lack the ability to dissipate more than it absorbs.

unless it reaches boiling points, which would kill your hardware, pressurize your loop and cause your soft tubing to burst/leak.