shadow6491 Posted October 16, 2010 Share Posted October 16, 2010 I read a lot about the different contruction of heat pipes and them being filled with a small amout of liquid that is supposed to evaporate and transfer the heat from one end of the pipe to the other. But has anyone thought about or already done? Cut one end of the heat pipe and fill it up with thermal compound to transfer the heat? You may need to cut both ends to be able to get the air out and force the compoand through the pipe. it could be easily seald up again. Link to comment Share on other sites More sharing options...
FlawlessSoul Posted October 16, 2010 Share Posted October 16, 2010 It would be a less effective transfer, since the thermal compound would only transfer it directly. It would be less effective than a solid mass of metal. The heatpipe transfers heat efficiently to the entire length of the heatsink it is connected to, if it were filled with TIM it would just transfer heat from one side of the pipe to the other effectively and then spread out slowly. Link to comment Share on other sites More sharing options...
shadow6491 Posted October 17, 2010 Author Share Posted October 17, 2010 Yes a solid piece of copper would be the ideal, but they dont make the coolers with this due to cost. So what can we do to try and obtain the same thermal mass and conductivity. Filling the tube with a highly thermal conductive material should simulate this. Thermal compound is not a one directional material it will transfer the heat in all directions not just across the pipe but along its length. Link to comment Share on other sites More sharing options...
jetboy Posted October 17, 2010 Share Posted October 17, 2010 I only wonder why they don't flatten out the heatpipes like those on a radiator. There is a reason why the computer rads have flat tubes (more surface area in direct contact to the cooling fins). I wonder why it isn't applicable for air cooled heatsinks. ??? Link to comment Share on other sites More sharing options...
FlawlessSoul Posted October 17, 2010 Share Posted October 17, 2010 Yes a solid piece of copper would be the ideal, but they dont make the coolers with this due to cost. So what can we do to try and obtain the same thermal mass and conductivity. Filling the tube with a highly thermal conductive material should simulate this. Thermal compound is not a one directional material it will transfer the heat in all directions not just across the pipe but along its length. A solid piece of metal would not be as effective at removing heat quickly away from the hot area (the part in contact with the CPU). Link to comment Share on other sites More sharing options...
kl1054 Posted October 18, 2010 Share Posted October 18, 2010 flawlesssoul-- most air coolers simply have a solid chunk of metal attached to the cpu with a fan dissapating the heat out. Link to comment Share on other sites More sharing options...
FlawlessSoul Posted October 18, 2010 Share Posted October 18, 2010 No, most air coolers are a finned structure. Those are superceded by air coolers with a block containing heatpipes connected to a heatsink cooled by a fan. Even better than a block containing heatpipes is a heatsink constructed so that the heatpipes are in direct contact with the CPU. Link to comment Share on other sites More sharing options...
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