Water coooling chamber, will turbulence on opposite side help?
Water coooling chamber, will turbulence on opposite side help?
(OP)
Will creating turbulence in a water cooling chamber on the opposite side surface that you're trying to cool help with cooling at all? I mean on the cover of the water cooling chamber, opposite of the heat source. We have an IGBT that we want to water cool, and the chief wants to add turbulators on the cover of the water cooling chamber. There was a study that I read that said that this kind of turbulence only helps if it's on the surface that you're trying to cool, and I tried explaining this but I'm not sure he understood. Will adding these things (bumps basically) on the cover help at with cooling?





RE: Water coooling chamber, will turbulence on opposite side help?
RE: Water coooling chamber, will turbulence on opposite side help?
RE: Water coooling chamber, will turbulence on opposite side help?
RE: Water coooling chamber, will turbulence on opposite side help?
If the flow is already turbulent then I don't see them helping at all.
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P.E. Metallurgy, Plymouth Tube
RE: Water coooling chamber, will turbulence on opposite side help?
RE: Water coooling chamber, will turbulence on opposite side help?
This is the cooling side
Here's the ramps on the cover
The current water channel
RE: Water coooling chamber, will turbulence on opposite side help?
The 'bars' may just be getting in the way. You won't know until you run it. You have the old cover that is smooth? you could compare them.
Have you run it yet to see how much it increases the pressure drop?
They look big, smaller ones would work just as well and not restrict the flow.
The narrow inlet and outlet passage does not look good, you need the same cross section everywhere.
After all flow velocity is your first tool, don't reduce the flow.
If they obstruct too much just make them narrower, but the same length, () shaped with the long direction the flow direction.
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P.E. Metallurgy, Plymouth Tube
RE: Water coooling chamber, will turbulence on opposite side help?
And no, there is no smooth cover, maybe we should make two versions for the next revision, we are having two made anyway.
I think increasing the inlet/oulet size would increase the size of the whole unit, and we're trying desperately to make it smaller (it's 33inches long).
RE: Water coooling chamber, will turbulence on opposite side help?
But now back to where we should have started.
How much heat are you trying to remove?
How much flow do you have?
Let's see if it is even possible with this approach.
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P.E. Metallurgy, Plymouth Tube
RE: Water coooling chamber, will turbulence on opposite side help?
If the flow is already turbulent then I don't see them helping at all."
Don't agree with this, more turbulence always increases heat transfer coefficients (HTC). Transition from laminar to turbulent flow gives significant HTC increase, and the HTC will continue to have increasing HTC with more and more turbulence (Generally Reynolds Number).
"So the pins are on the side that is heated?" I think he is trying to say //The pins are on the side that is being cooled by the fluid flow?// Is this the proper clarification here?