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post #11 of 34
The goal is to have the water sit in the radiator for the longest possible time, and for it to go over the waterblock in the shortest time. Now if you can figure out how do to both, you will be a millionare.
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post #12 of 34
Thread Starter 
After running my pump for 6 hours max speed and another 6 hours of slow speed. max flow is actually better reason being the pump itself produces heat the slower the flow rate is the longer the liquid/water it stays in the pump and at the sametime flowing thru the rad doesnt make a difference it does not cool the liquid/water.
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post #13 of 34
Quote:
Originally Posted by pauldovi
The goal is to have the water sit in the radiator for the longest possible time, and for it to go over the waterblock in the shortest time. Now if you can figure out how do to both, you will be a millionare.

I have a theory, but it involves the use of a blackhole. It's a work in progress
post #14 of 34
Quote:
Originally Posted by shortfuse
After running my pump for 6 hours max speed and another 6 hours of slow speed. max flow is actually better reason being the pump itself produces heat the slower the flow rate is the longer the liquid/water it stays in the pump and at the sametime flowing thru the rad doesnt make a difference it does not cool the liquid/water.
Your post makes no senes

Quote:
flowing thru the rad doesnt make a difference it does not cool the liquid/water.
Ummm then why have a radiator if it doesn't cool the water?

Quote:
max flow is actually better reason being the pump itself produces heat the slower the flow rate is the longer the liquid/water it stays
Flow is in NO way related to heat.
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post #15 of 34
Quote:
Originally Posted by Thumper
I have a theory, but it involves the use of a blackhole. It's a work in progress
Lol! I would love to hear it!
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post #16 of 34
Thread Starter 
Quote:
Originally Posted by pauldovi
Flow is in NO way related to heat.
What i was trying to say is this, since i had the flow control set to minimum the flow of the water is slow, the longer it stays on the pump it grabs the heat from the pump. and passing water thru the RADIATOR does'nt cool that much compare to a high flow rate.
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post #17 of 34
Quote:
Originally Posted by shortfuse
What i was trying to say is this, since i had the flow control set to minimum the flow of the water is slow, the longer it stays on the pump it grabs the heat from the pump. and passing water thru the RADIATOR does'nt cool that much compare to a high flow rate.
Ok, I understand what you are saying about the pump (although the gained heat is minute). But what I don't understand is what you are saying about the rad?

Are you saying that at a low flow rate, the heat gained from the pump is not taken out by the gained performance of the radiator because of the slow flow rate?

If that is what you are saying, then I think you are wrong. The amount of heat taken from the water in 2 seconds is double that taken from 1 second. So you having the water spend the most amount of time in the radiator is prefered. (Although you want it to move quickly over the waterblock.)
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post #18 of 34
Rather than start a new thread on Laing/DD D-5 pump stats, here's a question for you guys that is beyond my mathematical autism:

With the rheostat set @ #5 the pump circulates roughly 300Gph @ 12Ft Head. Is there a simple equation to determine what the flow would be with 6" Head at that same setting?

And Thumpers' black whole theory sounds quite intriguing
  
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post #19 of 34
Quote:
Originally Posted by pauldovi
The goal is to have the water sit in the radiator for the longest possible time, and for it to go over the waterblock in the shortest time. Now if you can figure out how do to both, you will be a millionare.
Answer: Make the radiator (volume of cooling pipe) as big as possible!

<checking bank account>...
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post #20 of 34
Quote:
Originally Posted by Dryadsoul
Rather than start a new thread on Laing/DD D-5 pump stats, here's a question for you guys that is beyond my mathematical autism:

With the rheostat set @ #5 the pump circulates roughly 300Gph @ 12Ft Head. Is there a simple equation to determine what the flow would be with 6" Head at that same setting?

And Thumpers' black whole theory sounds quite intriguing
Agreed on the black hole theory--refreshingly appropriate.

The bad news is there's no simple equation to answer your question. The good news is there's a simple answer.

Just click on over to DangerDen's listing for the pump, and you'll see graphs of flow rate versus head pressure for the various rheostat settings, yay.

Caution--head pressure is measured in units of height, but head pressure does not correspond to component height relative to your pump. Apples and oranges, though posts regularly (and mistakenly) equate the two.
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