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Custom 62mm TEC Water block - Page 36  

post #351 of 680
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Quote:
Originally Posted by oliverw92 View Post
I was just interested to see a simulation of 3 to see how the gains in temperature are related to the number of pumps.
Well i only got 0.5 c going from 1 to 2 pumps in series so 3 wouldn't help

To make the most of 2 or 3 pumps in parallel i really need to add a mid plate for better inlet and out let placement. But i can't be bothered with that.

What is really clear is that i could significantly reduce the temps if i was prepared to reduce the thickness of the base
post #352 of 680
Why don't you?
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post #353 of 680
Quote:
Originally Posted by Ultrasonic2 (muffy) View Post
Yeah im a bit burnt out really whihc is why im just playing

Im currently doing a sim of my normal block but with 2 pumps in series to see how much difference it makes.

im assuming that 2 pumps doubles the pressure while the flow rates stay the same
It doubles pressure and gives around 30% more flow.
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post #354 of 680
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id love to see some real test data on the topic from martin .. and some tests with 2 pumps in Parallel "Y"d

Just as a little update .. im the process of upgrading to windows 7 64 bit and Solidworks 64 bit so that;s why i haven't done anything recently.

Also for the next week my brother inlaw will be over form the States so i shouldn't be doing to much as we're going skying
post #355 of 680
Quote:
Originally Posted by ira-k View Post
It doubles pressure and gives around 30% more flow.
i think he meant max rated flow. in which case he is right. resulting flow in a loop... 30% sounds about right yeah.
post #356 of 680
Quote:
Originally Posted by Ultrasonic2 (muffy) View Post
id love to see some real test data on the topic from martin .. and some tests with 2 pumps in Parallel "Y"d

Just as a little update .. im the process of upgrading to windows 7 64 bit and Solidworks 64 bit so that;s why i haven't done anything recently.

Also for the next week my brother inlaw will be over form the States so i shouldn't be doing to much as we're going skying

He does some parallel and series testing down towards the bottom..DDC Top & Pump Performance Comparison . Cathar did some to but I cant find that, but it was about the same gain, he may go into it in this..How much pump is enough? How much is too much? .Its been so long since I read through all of it I really don't remember now, he has info all the way through it, a little dated but still valid. Just use Martins flow calc and use 2 pumps, they will be in series to judge flow gain, its around 15-30% from a a second pump depending on restriction.


EDIT: I wish he would do a update on these...Flow Rate Estimator Spreadsheet V1.7 - Overclock.net - Overclocking.net
Edited by ira-k - 8/26/09 at 6:24pm
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post #357 of 680
Thread Starter 
Quote:
Originally Posted by ira-k View Post
He does some parallel and series testing down towards the bottom..DDC Top & Pump Performance Comparison . Cathar did some to but I cant find that, but it was about the same gain, he may go into it in this..? How much is too much? .Its been so long since I read through all of it I really don't remember now, he has info all the way through it, a little dated but still valid. Just use Martins flow calc and use 2 pumps, they will be in series to judge flow gain, its around 15-30% from a a second pump depending on restriction.


EDIT: I wish he would do a update on these...Flow Rate Estimator Spreadsheet V1.7 - Overclock.net - Overclocking.net
Yeah those series tests are useless to me cos i want to know the head and flow of the 2 pumps .. not how much more they flow around a loop a loop with black and rads in them .. It's interesting though

Oh the "How much pump is enough to much" thread . i was posting in that thread back in the day (pre overclock.net. Now i love my overclock.net )

Martins calculator presumes the same as me that 2 pumps will have twice the head but the same flow.. i believe this wont be reality though, which is why it would be nice to get some trust worthy to test the different configs
post #358 of 680
Quote:
Originally Posted by Ultrasonic2 (muffy) View Post
Oh the "How much pump is enough to much" thread . i was posting in that thread back in the day (pre overclock.net. Now i love my overclock.net )

Martins calculator presumes the same as me that 2 pumps will have twice the head but the same flow.. i believe this wont be reality though, which is why it would be nice to get some trust worthy to test the different configs
On Martins calc you'll get more % of flow, depending on restriction of course, the more restrictive the loop the more the % flow you'll get with a second pump. If your running a real free flowing block a second pump wont do much for you since it's not using any of it's extra head from the second pump, it would just be more heat dump with no gain. Even using the low restriction set up he has already on the estimater adding a second pump is good for a little over a half gallon more flow per minute. Stick the double inpact in its place and add a second pump the % of flow gain goes up. But that's old news everyone already knows that.

Quote:
Yeah those series tests are useless to me cos i want to know the head and flow of the 2 pumps .. not how much more they flow around a loop a loop with black and rads in them .. It's interesting though
You mean on the DDC tests? He has all the head and flow charts there. But I guess you mean for the serial or parallel loops.

EDIT: Yeah I saw you on the last page or two there, I'd forgotten about that. That used to be a real good site before the break-up in 2005.
Edited by ira-k - 8/27/09 at 2:46pm
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post #359 of 680
Thread Starter 

LL
Edited by Ultrasonic2 (muffy) - 9/10/09 at 12:09pm
post #360 of 680
i kinda want one :3
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