[SOLVED] Parallel loop with Y-splitters?

us.ez.pc

Commendable
Jan 21, 2019
2
0
1,510
Hi!
I'll start with specs:
XSPC Raystorm Pro CPU block
EK-FC1080 GTX TF6 GPU block
Alphacool D5 Pump running at 3000 RPM
HW Labs GTX 480 + HW Labs GTS 420 Radiators.


So, after a lot of testing, I noticed that GPU reacts very well on increased flow, while the CPU doesn't care much. In the case of GPU, it's a 5C difference between the lowest speed (~1800) and the highest (~4700).

Currently, my loop is in series: Reservoir > Pump > CPU > GPU > Rads > Reservoir.
What I want to do is: Reservoir > Pump > Y-splitter > Parallel to CPU and GPU > Y-splitter > Merging CPU and GPU outlets into one tube > Rads > reservoir.
Here is the picture of how I want to make it, and also how it's routed now: View: https://imgur.com/a/qir7uUQ



Why I expect it to be beneficial - Both blocks receiving the cold water of the same temperature which theoretically should be transferred to better cooling. -1C -2C is a win-win with my OC.
Why I expect this idea to possibly be flawed - drop of the pressure in the place where the flow is splitting; Univen destructiveness of the blocks.

I know from reviews that XSPC Raystorm is a pretty low restriction block (0.67 PSI).
I found only one pressure drop data for EK-FC blocks which shows that my GPU block has a 0.79 PSI drop which results in a 16.4% difference between blocks.

Assuming that the pump speed will remain the same, (3000 RPM is the highest silent point this pump has), what is going to happen with a flow/pressure when it hits the Y-splitter on the way to blocks?
Does 16% difference is so dramatic? Will Y-splitter on the other end (that merging block's outlets that go to the rads) will equalize the flow?

I would greatly appreciate any info and I especially looking to here some input from rubix_1011.
Thanks!
 
Solution
If I am following correctly you are going from a series flow path to a parallel flow path.

For the most part, when it comes to pumps, fluid flows, thermodynamics, etc.. there are always tradeoffs....

The applicable User Guides/Manuals (CPU, GPU, pump, radiator) are the determining document(s).

Unless your desired cooling flow paths are supported by the manufacturers I would be very wary of any such modifications.
If I am following correctly you are going from a series flow path to a parallel flow path.

For the most part, when it comes to pumps, fluid flows, thermodynamics, etc.. there are always tradeoffs....

The applicable User Guides/Manuals (CPU, GPU, pump, radiator) are the determining document(s).

Unless your desired cooling flow paths are supported by the manufacturers I would be very wary of any such modifications.
 
Solution