Water pump heat

DeadEye · 06-11-2004, 04:41 PM

My system I have put together is very restricted in available space (Shuttle SFF), so was forced to pick a small pump. I chose the Hydor L20 running inline, and now I am finding I get very poor temperatures, no better than the stock air cooled heat pipe HSU.

After doing some testing out of the system with no CPU load, I find the pump is putting a lot of heat into the water, it is rising at least 10C above ambient in a very short time.

So looking for a small pump that contributes very little heat, the CA-Sytems/DTEK looks interesting has anyone tried it yet?

SlaterSpeed · 06-13-2004, 03:51 AM

http://forums.procooling.com/vbb/showthread.php?t=9625

However dont be 100% sure the pump is the problem.

DeadEye · 06-13-2004, 05:22 PM

Quote:

Originally Posted by SlaterSpeed

http://forums.procooling.com/vbb/showthread.php?t=9625

However dont be 100% sure the pump is the problem.

Thanks, I have been following the thread.

Not sure what you mean by your comment though, with the pump being the only source of heat when tested, the water was heating very fast. What else can cause it ?

SlaterSpeed · 06-13-2004, 05:27 PM

Well all i relly mean is the rad is important aswell and you should not blame all your problems on the pump.

I will say tho that a 10C rise (short time? min or hours?) sounds like quite alot expecialy from a L20. However my experiance says that a L20 should not put alot of heat into the water and maybe the rising temp is attualy due to poor radiator design.

bigben2k · 06-13-2004, 06:15 PM

Airflow through the rad is a far more important factor. The pump heat you mention should be almost irrelevant.

Cathar · 06-13-2004, 06:30 PM

Were the radiator fans even on at the time when the 10C rise was witnessed?

jlrii · 06-13-2004, 06:44 PM

Where was the temp measured, and how? If that temp is just at the inlet of the rad I would think you have a severe restriction. If it is system wide You either have poor airflow, air in the rad, MUCH too small a rad, or as you mentioned, some sort of large heat source adding heat. What rad & fan(s) do you have? How did you purge the system of air?

jaydee · 06-13-2004, 07:05 PM

WTF does this have to do with water block design and construction?

jlrii · 06-13-2004, 07:09 PM

Quote:

Originally Posted by jaydee116

WTF does this have to do with water block design and construction?

Yessir you is right.

DeadEye · 06-15-2004, 01:27 PM

Quote:

Originally Posted by jaydee116

WTF does this have to do with water block design and construction?

Is there actually a separate forum on here for dealing with questions for newcomers?
If there is then I cannot see it, we come here to ask you guys who frequent a renowned forum for help, if this is the attitude of this forum then forget it.
Admin, close this thread and delete my registration of this forum.

I was 75% through writing a 16 page article to help others with lathe and milling information, but stuff you, its deleted already.

Ask yourself this question JD, if Cathar or a few others had asked this, then you would never have wrote that reply.

jaydee · 06-15-2004, 01:33 PM

Quote:

Originally Posted by DeadEye

Is there actually a separate forum on here for dealing with questions for newcomers?
If there is then I cannot see it, we come here to ask you guys who frequent a renowned forum for help, if this is the attitude of this forum then forget it.
Admin, close this thread and delete my registration of this forum.

I was 75% through writing a 16 page article to help others with lathe and milling information, but stuff you, its deleted already.

Ask yourself this question JD, if Cathar or a few others had asked this, then you would never have wrote that reply.

As I asked before. WTF does this thread have to do with Water Block Design and Construction? Does pump heat somehow dictate how we design water blocks or construct them?

Dude you posted this in the WRONG forum. THIS FORUM is were it should have been posted. This site doesn't consist of just the Water block Design and Construction forum. There are other forums here to keep things somewhat organized so people can navigate easier. Who comes to a water block design forum to find info about pump heat?

Damn I thought I had a short fuse. Chill out dude. :shrug:

jaydee · 06-15-2004, 02:19 PM

Moved finally. Only took 4 days.

Brians256 · 06-15-2004, 02:20 PM

Thread is moved.

Jaydee116, a better response would have been:

Quote:

This is the wrong forum. The better forum is "Liquid & Phase Change High End Cooling Discussions". You can navigate there with this link:
http://forums.procooling.com/vbb/forumdisplay.php?f=9

Instead, you said:

Quote:

Originally Posted by Jaydee116

WTF does this have to do with water block design and construction?

Please use strong language AFTER someone has failed to respond to polite language. Use the nukes only when the marines can't do the job.

Brians256 · 06-15-2004, 02:22 PM

Quote:

Originally Posted by jaydee116

Moved finally. Only took 4 days.

Did you report the post? Think I'm not busy so I can read every thread like BigBen2k did (maybe still does)?

jaydee · 06-15-2004, 02:29 PM

Whatever Brian. Your opinion is noted.

bigben2k · 06-15-2004, 02:32 PM

It's now in the right forum, and no, I don't read all the threads anymore

just the important ones, and the silly ones that keep coming up over and over (like the "H2O as a TIM" thread

). If a thread's in the wrong forum, I just ignore it.

Reporting it would be step 1, that's right. In spite of appearances, the moderator(s) are actually active.

As for Deadeye's original Q... cramping a system in a small case, is going to cost you something. Now you know what it is: performance.

If you could increase the airflow (maybe a slim 120mm fan?!?), you'd get much better performance.

jaydee · 06-15-2004, 03:18 PM

DeadEye I speak for MYSELF not the forum. Don't leave because of me.

Brians256 · 06-15-2004, 04:59 PM

Quote:

Originally Posted by jaydee116

DeadEye I speak for MYSELF not the forum. Don't leave because of me.

For any newbies:
On the other hand, don't discount what Jaydee116 has to say. He has a lot more experience doing this than 99% of the posers out there (i.e. he actually tries things out).

06-11-2004, 04:41 PM	#1
DeadEye Cooling Neophyte Join Date: Apr 2004 Location: Nr Oxford, UK Posts: 41	Water pump heat My system I have put together is very restricted in available space (Shuttle SFF), so was forced to pick a small pump. I chose the Hydor L20 running inline, and now I am finding I get very poor temperatures, no better than the stock air cooled heat pipe HSU. After doing some testing out of the system with no CPU load, I find the pump is putting a lot of heat into the water, it is rising at least 10C above ambient in a very short time. So looking for a small pump that contributes very little heat, the CA-Sytems/DTEK looks interesting has anyone tried it yet?

06-13-2004, 03:51 AM	#2
SlaterSpeed Cooling Savant Join Date: Nov 2003 Location: Suffolk, UK Posts: 234	http://forums.procooling.com/vbb/showthread.php?t=9625 However dont be 100% sure the pump is the problem. __________________ aka. slater3333uk - The self proclaimed 'Middle Player' 'Liquified'

06-13-2004, 05:27 PM	#4
SlaterSpeed Cooling Savant Join Date: Nov 2003 Location: Suffolk, UK Posts: 234	Well all i relly mean is the rad is important aswell and you should not blame all your problems on the pump. I will say tho that a 10C rise (short time? min or hours?) sounds like quite alot expecialy from a L20. However my experiance says that a L20 should not put alot of heat into the water and maybe the rising temp is attualy due to poor radiator design. __________________ aka. slater3333uk - The self proclaimed 'Middle Player' 'Liquified'

06-13-2004, 06:15 PM	#5
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Airflow through the rad is a far more important factor. The pump heat you mention should be almost irrelevant. __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

06-15-2004, 02:32 PM	#16
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	It's now in the right forum, and no, I don't read all the threads anymore just the important ones, and the silly ones that keep coming up over and over (like the "H2O as a TIM" thread ). If a thread's in the wrong forum, I just ignore it. Reporting it would be step 1, that's right. In spite of appearances, the moderator(s) are actually active. As for Deadeye's original Q... cramping a system in a small case, is going to cost you something. Now you know what it is: performance. If you could increase the airflow (maybe a slim 120mm fan?!?), you'd get much better performance. __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

06-13-2004, 06:30 PM	#6
Cathar Thermophile Join Date: Sep 2002 Location: Melbourne, Australia Posts: 2,538	Were the radiator fans even on at the time when the 10C rise was witnessed?

06-13-2004, 06:44 PM	#7
jlrii Cooling Savant Join Date: Feb 2004 Location: Massachusetts, USA Posts: 158	Where was the temp measured, and how? If that temp is just at the inlet of the rad I would think you have a severe restriction. If it is system wide You either have poor airflow, air in the rad, MUCH too small a rad, or as you mentioned, some sort of large heat source adding heat. What rad & fan(s) do you have? How did you purge the system of air?

06-13-2004, 07:05 PM	#8
jaydee Put up or Shut Up Join Date: Dec 2001 Location: Spokane WA Posts: 6,506	WTF does this have to do with water block design and construction?

06-15-2004, 02:19 PM	#12
jaydee Put up or Shut Up Join Date: Dec 2001 Location: Spokane WA Posts: 6,506	Moved finally. Only took 4 days.

06-15-2004, 02:29 PM	#15
jaydee Put up or Shut Up Join Date: Dec 2001 Location: Spokane WA Posts: 6,506	Whatever Brian. Your opinion is noted.

06-15-2004, 03:18 PM	#17
jaydee Put up or Shut Up Join Date: Dec 2001 Location: Spokane WA Posts: 6,506	DeadEye I speak for MYSELF not the forum. Don't leave because of me.

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