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BillA · 07-22-2004, 05:19 PM

GreenPsycho
you said: (my emphasis added)
quote
Testing
When measuring up a pump, I look for 3 main qualities: 1) flow rate and head pressure 2)noise 3)heat produced. The pump is the heart of a water cooling system. It will most likely not make or break the temperatures, as that is mainly the job of the radiator. But it is responsible for moving the water around. And the quicker the hot water can get to the radiator to cool off, the better the temperatures will be.

Looking at DangerDen’s chart concerning flow rates, I decided to stage a few tests of my own to see how accurate the chart is.

What I found is that the chart is pretty much dead on accurate. In fact, in some cases, I got better results than what is shown on the chart. Seeing as how the chart was accurate, I decided to compile a composite chart of all the competing pumps and how flow rate is affected by head height.

The flow rate of a pump is the volume of water a pump can move during a given amount of time. Simple enough. However, head pressure relates to vertical discharge pressure. Basically, how high a pump can shoot water up until the pump reaches its "shut off" head pressure and can not pump any higher.

How this affects water coolers is that you will find the head pressures drop significantly over a few feet. For the most part, an internal water cooling system only has 3-5 feet of length. However, if you are running an external system, you will want to make sure your pump has enough power to keep the flow rates sufficient at a higher head height. If you are running 7 feet of tubing, and your pump’s "shut off" head pressure is 6 feet, you most likely won’t be moving any water.
unquote

the questions now relate to honesty and competence

the first bolded quote you have admitted is false, your claimed testing was a lie
-> pay attention, have you not read of these big-time reporters losing their jobs for making up false stories ?
your editor should fire you for dishonesty PERIOD

the second bolded quote is ignorant beyond description
seeing such in an article causes me to question the competence of your editor, again

07-22-2004, 05:19 PM	#20
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	GreenPsycho you said: (my emphasis added) quote Testing When measuring up a pump, I look for 3 main qualities: 1) flow rate and head pressure 2)noise 3)heat produced. The pump is the heart of a water cooling system. It will most likely not make or break the temperatures, as that is mainly the job of the radiator. But it is responsible for moving the water around. And the quicker the hot water can get to the radiator to cool off, the better the temperatures will be. Looking at DangerDen’s chart concerning flow rates, I decided to stage a few tests of my own to see how accurate the chart is. What I found is that the chart is pretty much dead on accurate. In fact, in some cases, I got better results than what is shown on the chart. Seeing as how the chart was accurate, I decided to compile a composite chart of all the competing pumps and how flow rate is affected by head height. The flow rate of a pump is the volume of water a pump can move during a given amount of time. Simple enough. However, head pressure relates to vertical discharge pressure. Basically, how high a pump can shoot water up until the pump reaches its "shut off" head pressure and can not pump any higher. How this affects water coolers is that you will find the head pressures drop significantly over a few feet. For the most part, an internal water cooling system only has 3-5 feet of length. However, if you are running an external system, you will want to make sure your pump has enough power to keep the flow rates sufficient at a higher head height. If you are running 7 feet of tubing, and your pump’s "shut off" head pressure is 6 feet, you most likely won’t be moving any water. unquote the questions now relate to honesty and competence the first bolded quote you have admitted is false, your claimed testing was a lie -> pay attention, have you not read of these big-time reporters losing their jobs for making up false stories ? your editor should fire you for dishonesty PERIOD the second bolded quote is ignorant beyond description seeing such in an article causes me to question the competence of your editor, again Last edited by BillA; 07-22-2004 at 05:22 PM. Reason: added quotes