Effective Thermal Conductivity of a Heat Pipe

[@One-jz6sl]

I am wondering if we used heat pipes to make a pin-fin heat sink, using only heat pipes embedded in a plate of copper, if that would make a good heat sink, if a large number of heat pipes were used as the radiators without anything more on them?

[@heatsinks]

Its certainly a novel approach, but, don't forget, heat pipes transport heat. So that would have to be taken into account. It would also be fairly expensive to manufacture. Your concept might be better executed with thermosyphons (see more at this video: kzbin.info/www/bejne/r4XMlKuNjrRpia8 ).

[@siddappabhusnoor7814]

can ano one of you suggest me good paper in which correlations for Overall Heat Transfer coefficient and effective thermal conductivity of heat pipe heat exchanger is given

[@Arjunsampath92]

Thankyou, but isnt there a evaporative and condensation resistance? i mean wont there be a difference in temperature of heating surface(wick) and vapour?

[@heatsinks]

Yes, there is a resistance to evaporation side (not so much on the condensation side). But that resistance is small compared with others unless it is running at very low power.

[@shashankadibbi2635]

Also, what is the thermal management solution to transfer heat from a small electronic component in space environment other than through PCB?

[@heatsinks]

You can use short heat pipes 100 mm or so to transfer heat from components. They can be used in a vacuum and space environments.

[@shashankadibbi2635]

Can we use small heat pipes say 50 or 100mm long inside an electronic module in space or vacuum environment? Thanks in advance.

[@heatsinks]

They can be used in a vacuum and space environments.

[@elihappinesspie]

Thanks for the explanation. Could've done without the BG music.

[@heatsinks]

We're glad you liked our video explanation and that you found it helpful.

[@luckyod1]

Hi, Just a quick question, How would you measure the effective thermal conductivity of a heat pipe. Say a heat pipe 6mm in diameter and 150mm long. A schematic or diagram would be great. Thanks a million

[@heatsinks]

Apply a known quantity of heat on the evaporator side by using a heater and measuring the voltage and current going into it. Use thermocouples to measure the temperature difference between the evaporator and condenser side. The total resistance will be the temperature difference divided by the power. Some of the heat will go from the heater to the ambient or be dissipated from the adiabatic section so the better insulation you have, the more accurate the results would be.

[@sridharnaidu2092]

Hello sir. I want to my phd in advanced cooling systems like heat pipes and loop heat pipes with different fluids and different wicks. Is is good for future scope. Could you please help me and guide me

[@heatsinks]

Hi Sridhar, we recommend reaching out to us using our contact page for any questions you may have. www.qats.com/Corporate/contact

[@Resologist]

Took a long time to not answer the question, with a loud musical background that made this video even more annoying than its lack of a coherent answer.