![]() | ||
|
|
General Liquid/Water Cooling Discussion For discussion about Full Cooling System kits, or general cooling topics. Keep specific cooling items like pumps, radiators, etc... in their specific forums. |
![]() |
Thread Tools |
![]() |
#26 | |
Cooling Savant
Join Date: May 2002
Location: Da UP
Posts: 517
|
![]() Quote:
![]() |
|
![]() |
![]() |
![]() |
#27 | |
Cooling Savant
Join Date: May 2002
Location: Da UP
Posts: 517
|
![]() Quote:
Edit to the edit, food for thought, click Edit, edit, edit: Model of jet impingement Last edited by gone_fishin; 11-17-2002 at 02:39 PM. |
|
![]() |
![]() |
![]() |
#28 |
CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
Posts: 4,440
|
![]()
ooohh, ooohh
I'm disabled, I'm disabled great link g_f and the math is all done, not too bad at all (other than having to write a program to do it) but is the jet submerged ? or not ? (a LOCA implies not) |
![]() |
![]() |
![]() |
#29 | |
Cooling Savant
Join Date: May 2002
Location: Da UP
Posts: 517
|
![]() Quote:
Here's an excerpt, "If the gap size increases at the same velocity, the spreading flow width slightly decreases. Also, the spreading width greatly decreases at the bottom of the flow film, if the pipe diameter increases from 1.7cm to 2.2cm." The principle (size of r related to other variables under discussion here) should be the same but with added factors like fluid resistance in a closed liquid filled environment. The absolute numbers would definately have been different but the relationship of the variables as it pertains to the size of r is interesting. Edit: BillA, if you liked the last links, this will cause you to take a cold shower ![]() Last edited by gone_fishin; 11-17-2002 at 04:45 PM. |
|
![]() |
![]() |
![]() |
#30 |
CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
Posts: 4,440
|
![]()
keep googling, you're hot g_f
it was only the first link that was good, and its quite 'off' not being an immersed jet (but the calcs should be adaptable) that last lab makes my feel ok about mine, need to find some grant $ for my DAQ system |
![]() |
![]() |
![]() |
#31 |
Cooling Savant
Join Date: May 2002
Location: Da UP
Posts: 517
|
![]()
Most of the current stuff is pay per view
![]() Care to pay $35 per article to tickle the neurons? click, 284 and a few others Thankfully most of this stuff isn't current ![]() |
![]() |
![]() |
![]() |
#32 |
CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
Posts: 4,440
|
![]()
for $35 I can drive over to Rice U
|
![]() |
![]() |
![]() |
#33 |
Cooling Savant
Join Date: May 2002
Location: Da UP
Posts: 517
|
![]()
A may have to take that last statement back, according to these people we're examining the cutting edge
![]() |
![]() |
![]() |
![]() |
#34 |
CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
Posts: 4,440
|
![]()
while I would, and do, agree that they are at the cutting edge,
it is equally certain that we are not the stuff that is of interest to us (and that we can even understand) is probably 10 to 20 yrs 'old' a great of the research that is done today involves the transient response analysis, which really is quite beyond my ability in terms of both the performance and data reduction - very deep |
![]() |
![]() |
![]() |
#36 |
CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
Posts: 4,440
|
![]()
yea, Aavid has the same setup
their advantage over mine is the multiple TCs so they can extrapolate the face temp and actual offset while I could set up the die that way, obviously the wb would still not be results the same, but mine lack that precision |
![]() |
![]() |
![]() |
#37 |
Cooling Savant
Join Date: May 2002
Location: Da UP
Posts: 517
|
![]()
Synthetic jet array in air cooling
Browse around there to get the jist. Induced impingement through pulses. I wonder if that could be incorporated into pulses over a slow moving water stream? Edit: Uncanny pin grid array resembling swiftechs latest. |
![]() |
![]() |
![]() |
#38 |
Responsible for 2%
of all the posts here. Join Date: May 2002
Location: Texas, U.S.A.
Posts: 8,302
|
![]()
Nice link indeed, G_F!
Now I can't wait to get to work, so that I can print it (I'm actually looking forward to Monday, thanks!). I was going to say something about it not being submerged, but BillA beat me to it. |
![]() |
![]() |
![]() |
#40 |
CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
Posts: 4,440
|
![]()
jesus christ g_f,
that is a phenomenal paper - but 43 pages of equations ??? makes my head hurt ! a fascinating spin through the IHS world, but backwards as they are going for constant temp control some tidbits: apparently Intel CPUs are 'graded' at 85°C so that would imply a throttling set point of ?? (can they disable it during testing ?, but if so then the rating would be pointless) - my guess is that the setpoint is somewhat above 85°C as its effect is instantaneous IHS thickness of 1.8mm Rt = 0.42 cm²K/W hc = 1200 W/m²K and a bunch of info on lateral heat spreading (not so much) good find g_f |
![]() |
![]() |
![]() |
#41 | |
Cooling Savant
Join Date: Oct 2001
Location: Wigan UK
Posts: 929
|
![]() Quote:
For Swiftech 462-UH Flomerics H=0.013, r =0.03, D=0.01 and D=0.0145 For Swiftech 462-U Flomerics H=0.005,r =0.03,D=0.01. Waterloo for both: Die 10x10mm,bp 60x60x8mm. ![]() |
|
![]() |
![]() |
![]() |
#43 |
CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
Posts: 4,440
|
![]()
hot damn Les, don't know what to say
ok what does a D=0.006m yield (H=0.013 and 0.006m) I'm fishing here, obviously g_f = Google_Finder EDIT: I've seen similar, and the patent apps (5 yrs old ?) no one will make for a CPU, 300psi supply ?? Last edited by BillA; 11-17-2002 at 09:21 PM. |
![]() |
![]() |
![]() |
#44 | |
Thermophile
Join Date: Sep 2002
Location: Melbourne, Australia
Posts: 2,538
|
![]() Quote:
The design also reminds me very much of Volenti's direct-die cooling jet setup in a basic way. |
|
![]() |
![]() |
![]() |
#45 |
CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
Posts: 4,440
|
![]()
because your pressure was too low/volume too high
I've seen them reported where the metal erosion was a near term problem works quite well but is hardware intensive, not quite what we're doing |
![]() |
![]() |
![]() |
#46 |
Cooling Savant
Join Date: May 2002
Location: Da UP
Posts: 517
|
![]()
Yea, its got a 5cm (2") inlet pipe. Would need a boiler pump or bilge pump to get that pressure.
The other pulse induced concept has me interested. Would need a stronger pulse but the same concept could apply. In theirs there is a constant flow of cool air being passed through then the pulses go off and induce a whole lot of cooling mayem. Edit: "ok what does a D=0.006m yield (H=0.013 and 0.006m)" Now you are in the defined parameters (>2X). Last edited by gone_fishin; 11-17-2002 at 09:53 PM. |
![]() |
![]() |
![]() |
#47 | |
Thermophile
Join Date: Sep 2002
Location: Melbourne, Australia
Posts: 2,538
|
![]() Quote:
As for metal erosion, I can believe it. I was reading with interest a little while back about machining metals with ultra high speed water jets. |
|
![]() |
![]() |
![]() |
#48 |
Cooling Neophyte
Join Date: Feb 2002
Posts: 8
|
![]()
For those of you who do not like marketing trash, I have streamlined and clarified the offending statement, which now reads:"outperforms all previously released Swiftech water-blocks"... and you can take that to the bank !
In response to "letting customers fill-in the blanks": not true and unfair. What is true on the other hand, is that I prefer to let hardware review sites define the performance of my products, as independant (and hopefully impartial) third parties. Focused flow vs patent pending DPM (Diamond Pin matrix): for those of you who have been involved with liquid cooling for a long time, you may recall that Swiftech was the first Company to introduce Focused Flow. I used this technology because I didn't want any channels in my blocks. The problem with this configuration is the inherent difficulty in bleeding the block, as pointed out by Steve [H], and others. Relocating the inlet and outlet as they are now, allows flawless bleeding in any position, while the DPM structure really does a magnificient job at absorbing the heat load, and yes, superior to the MCW462-UH by at least 1.5C (all tests equipment/conditions being equal). My bottom line is this (no marketing here, just facts): The product performs better than the best block we have ever made, it is more convenient and safer to use, it installs without removing the motherboard, and it is cheaper ![]() I'm sure Bill A. will have a blast playing with it too ... Happy holidays to all.. Gabe |
![]() |
![]() |
![]() |
#49 |
CoolingWorks Tech Guy Formerly "Unregistered"
Join Date: Dec 2000
Location: Posts: 2,371.493,106
Posts: 4,440
|
![]()
Hi Gabe,
good to see a mfgr setting the record straight no debate being initiated, but in truth there is precious little guidance available to the user as to how to 'set up' the MCW462-UH while you may "prefer to let hardware review sites define the performance of my products", I will roundly characterize these sites as being incapable of even the most rudimentary measurements - and such in any case does not address the even more difficult task of 'optimizing' the 462-UH, which is a quite excellent wb with the 'right' connectors -> and to my mind it is the mfgr who should be providing such guidance (not some ‘know-it-all tester’) enough of that "superior to the MCW462-UH by at least 1.5C (all tests equipment/conditions being equal)" whoo whee, I wonder if you have any idea just how well the 462-UH can (be made to) perform ? EDIT: the preceding sounds a bit strident; what is meant is that with a whole bunch of testing to establish an 'optimum', the 462-UH is a very good wb indeed - the challenge is accepted, 462 vs. 5000 "I'm sure Bill A. will have a blast playing with it too ..." ahem . . . can we say 'testing' ? yes, of course - just waiting . . . . Last edited by BillA; 11-18-2002 at 02:08 PM. |
![]() |
![]() |
![]() |
#50 |
Big PlayerMaking Big Money
Join Date: Aug 2001
Location: irc.lostgeek.com #procooling.com
Posts: 4,782
|
![]()
Gabe:
Thanks for responding. I probably came off a bit harsh before, it was not my intention to bash your company or your products. It is good to see wb mfgrs posting in threads without actively promoting. |
![]() |
![]() |
![]() |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|