Overclock.net › Forums › Cooling › Cooling Experiments › Heat Sink Theory
New Posts  All Forums:Forum Nav:

Heat Sink Theory - Page 4

post #31 of 57
Quote:
Originally Posted by rabidgnome229 View Post
My recommendation would be a tuniq-tower style HS with rows of parallel tubes creating a rectangular area to replace the plates.

A though occurs, tho. It is possible to fit more plates into a given volume than cylinders. My optimization was based on a constant volume of material - so given say 10 cm^3 of copper tubes would be the best design. What may be more useful would be to find the shape that maximizes surface area within a volume of space. Back to calc...

P.S. - Just in case anybody was planning on actually creating a design my previous optimizations found that
1 - given a volume V of material taking the form of a square plate length x and depth y the optimal (most surface area) dimension is x = V^(1/3)

2 - given a volume V of material taking the form of a cylinder with radius r and length x the optimal dimension for r is given by r = V^(1/3)

Good stuff there!!! A flattened cylinder might be a Happy compromize.....
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
post #32 of 57
NNNNOOOO!!! Why did you have to suggest that. Now I'm gonna make myself do calc with eliptical prisms. I hate conic sections
It goes to eleven
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6300 DS3 EVGA 8600GTS 2GB XMS2 DDR2-800 
Hard DriveOSMonitorKeyboard
1.294 TB Arch Linux/XP Samsung 226bw Eclipse II 
PowerCaseMouse
Corsair 520HX Lian-Li v1000B Plus G7 
  hide details  
Reply
It goes to eleven
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6300 DS3 EVGA 8600GTS 2GB XMS2 DDR2-800 
Hard DriveOSMonitorKeyboard
1.294 TB Arch Linux/XP Samsung 226bw Eclipse II 
PowerCaseMouse
Corsair 520HX Lian-Li v1000B Plus G7 
  hide details  
Reply
post #33 of 57
Thread Starter 
Quote:
Originally Posted by rabidgnome229 View Post
NNNNOOOO!!! Why did you have to suggest that. Now I'm gonna make myself do calc with eliptical prisms. I hate conic sections
Wouldn't we be moving into wing territory? Cool!
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Northwood P4 2.4 ghz 533 Asus P4T533 (RAMBUS 32-b) ATi (old but stable dual) 512 x Samsung 1066mhz 
Hard DriveOSMonitorKeyboard
Maxtor x 80g x 2 Windows XP Professional Dual 19" StarLogic Old Dos Type.CLICKY KEYS! 
PowerCaseMouse
Antec Antec Sonata II Logitech Optical 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Northwood P4 2.4 ghz 533 Asus P4T533 (RAMBUS 32-b) ATi (old but stable dual) 512 x Samsung 1066mhz 
Hard DriveOSMonitorKeyboard
Maxtor x 80g x 2 Windows XP Professional Dual 19" StarLogic Old Dos Type.CLICKY KEYS! 
PowerCaseMouse
Antec Antec Sonata II Logitech Optical 
  hide details  
Reply
post #34 of 57
Quote:
Originally Posted by rabidgnome229 View Post
NNNNOOOO!!! Why did you have to suggest that. Now I'm gonna make myself do calc with eliptical prisms. I hate conic sections

.................
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
post #35 of 57
Thread Starter 
Quote:
Originally Posted by Peritus View Post
Wouldn't we be moving into wing territory? Cool!
How about heatpipe-capillary-based feathers...made of copper of course...

My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Northwood P4 2.4 ghz 533 Asus P4T533 (RAMBUS 32-b) ATi (old but stable dual) 512 x Samsung 1066mhz 
Hard DriveOSMonitorKeyboard
Maxtor x 80g x 2 Windows XP Professional Dual 19" StarLogic Old Dos Type.CLICKY KEYS! 
PowerCaseMouse
Antec Antec Sonata II Logitech Optical 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Northwood P4 2.4 ghz 533 Asus P4T533 (RAMBUS 32-b) ATi (old but stable dual) 512 x Samsung 1066mhz 
Hard DriveOSMonitorKeyboard
Maxtor x 80g x 2 Windows XP Professional Dual 19" StarLogic Old Dos Type.CLICKY KEYS! 
PowerCaseMouse
Antec Antec Sonata II Logitech Optical 
  hide details  
Reply
post #36 of 57
Thread Starter 
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Northwood P4 2.4 ghz 533 Asus P4T533 (RAMBUS 32-b) ATi (old but stable dual) 512 x Samsung 1066mhz 
Hard DriveOSMonitorKeyboard
Maxtor x 80g x 2 Windows XP Professional Dual 19" StarLogic Old Dos Type.CLICKY KEYS! 
PowerCaseMouse
Antec Antec Sonata II Logitech Optical 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Northwood P4 2.4 ghz 533 Asus P4T533 (RAMBUS 32-b) ATi (old but stable dual) 512 x Samsung 1066mhz 
Hard DriveOSMonitorKeyboard
Maxtor x 80g x 2 Windows XP Professional Dual 19" StarLogic Old Dos Type.CLICKY KEYS! 
PowerCaseMouse
Antec Antec Sonata II Logitech Optical 
  hide details  
Reply
post #37 of 57
Thread Starter 
Quote:
Originally Posted by rabidgnome229 View Post
What may be more useful would be to find the shape that maximizes surface area within a volume of space. Back to calc...
This seems illogical to me... I purposely ignored this constraint for the same reasons we spoke about earlier, "choking"... Wouldn't having them spaced out allow for more "room temp" or cooled air to cross the heat sink?

The only exception, other than actual space constraints, that I can imagine would only occur, would be in an active heat sink .. with a fan..

The reason being, that the fan has a limited area upon which to blow... In a passive heat sink, room air is more omni-present (if that combo of words is even possible)..
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Northwood P4 2.4 ghz 533 Asus P4T533 (RAMBUS 32-b) ATi (old but stable dual) 512 x Samsung 1066mhz 
Hard DriveOSMonitorKeyboard
Maxtor x 80g x 2 Windows XP Professional Dual 19" StarLogic Old Dos Type.CLICKY KEYS! 
PowerCaseMouse
Antec Antec Sonata II Logitech Optical 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Northwood P4 2.4 ghz 533 Asus P4T533 (RAMBUS 32-b) ATi (old but stable dual) 512 x Samsung 1066mhz 
Hard DriveOSMonitorKeyboard
Maxtor x 80g x 2 Windows XP Professional Dual 19" StarLogic Old Dos Type.CLICKY KEYS! 
PowerCaseMouse
Antec Antec Sonata II Logitech Optical 
  hide details  
Reply
post #38 of 57
Thread Starter 
Here's a random picture that I thought interesting...



THE FOLLOWING IS FROM THIS LINK: http://www.coolingzone.com/Guest/New..._Ake_2002.html
"Conclusions

A bypass is always associated with a performance loss.

A porous body approach can be used to develop a reasonably successful bypass flow theory.

A heat sink with a bypass is always optimised for one particular air velocity. The potential loss when used at another velocity is usually moderate.

The fin thickness is a critical parameter and significant gains can often be made if it is optimised.

Overviews of heat sink performance are very appreciated in the front-end design process on the condition that they are created fast enough to keep the discussions alive."
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Northwood P4 2.4 ghz 533 Asus P4T533 (RAMBUS 32-b) ATi (old but stable dual) 512 x Samsung 1066mhz 
Hard DriveOSMonitorKeyboard
Maxtor x 80g x 2 Windows XP Professional Dual 19" StarLogic Old Dos Type.CLICKY KEYS! 
PowerCaseMouse
Antec Antec Sonata II Logitech Optical 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Northwood P4 2.4 ghz 533 Asus P4T533 (RAMBUS 32-b) ATi (old but stable dual) 512 x Samsung 1066mhz 
Hard DriveOSMonitorKeyboard
Maxtor x 80g x 2 Windows XP Professional Dual 19" StarLogic Old Dos Type.CLICKY KEYS! 
PowerCaseMouse
Antec Antec Sonata II Logitech Optical 
  hide details  
Reply
post #39 of 57
Thread Starter 
Somebody's studying trees..

My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Northwood P4 2.4 ghz 533 Asus P4T533 (RAMBUS 32-b) ATi (old but stable dual) 512 x Samsung 1066mhz 
Hard DriveOSMonitorKeyboard
Maxtor x 80g x 2 Windows XP Professional Dual 19" StarLogic Old Dos Type.CLICKY KEYS! 
PowerCaseMouse
Antec Antec Sonata II Logitech Optical 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Northwood P4 2.4 ghz 533 Asus P4T533 (RAMBUS 32-b) ATi (old but stable dual) 512 x Samsung 1066mhz 
Hard DriveOSMonitorKeyboard
Maxtor x 80g x 2 Windows XP Professional Dual 19" StarLogic Old Dos Type.CLICKY KEYS! 
PowerCaseMouse
Antec Antec Sonata II Logitech Optical 
  hide details  
Reply
post #40 of 57
Quote:
Originally Posted by FrankenPC View Post
I've often wondered if you could use a low temp vaporizing liquid in a heat pipe assembeled in such a way the the copper block has two stages. On the bottom is the "heater" which vaporizes the liquid...that gas travel's up several heat pipes into a condenser which then lets the condensed liquid flow back down a separate set of tubes into a insulated block (plastic) on the top of the copper block with a one way valve to allow the condensed liquid back onto the CPU block. So, you would have a simple circulation system power by expanding gasses and not a pump.
...that's what a refridgerator does. It has a vaporizor and a condensor and the fluid just runs around in a loop. It could be done, and probably fairly effeciently as long ask you kept the area small (only cooling 2 in square instead of 2 cubic yards...), but that's what phase is (i think)
Monster Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 G0 P5K Deluxe 3870 2X1GB Geil 800 MHz 
Hard DriveOptical DriveOSMonitor
4 x 250 barracuda's 2 x DVD Writers Windows 7 22" Acer LCD 
KeyboardPowerCaseMouse
Razor 600W GameXStream TT Armor Modded Razor 
  hide details  
Reply
Monster Rig
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 G0 P5K Deluxe 3870 2X1GB Geil 800 MHz 
Hard DriveOptical DriveOSMonitor
4 x 250 barracuda's 2 x DVD Writers Windows 7 22" Acer LCD 
KeyboardPowerCaseMouse
Razor 600W GameXStream TT Armor Modded Razor 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Cooling Experiments
Overclock.net › Forums › Cooling › Cooling Experiments › Heat Sink Theory