Heat Pipe Design and Modeling Techniques

[@PimpinPoptart06]

Super cool video, definitely learned a lot about this stuff. Thanks

[@AdvancedCoolingTech]

Glad you enjoyed it!

[@ponemark]

I have a selection of heatpipes acetone ones but not the ideal size and stuck at atatching to cold condensing area. But as you suggest soldering a conecting plate is a probable solution. Thanks for the helpful video.

[@AdvancedCoolingTech]

Thanks for watching! We're glad you found it helpful. Feel free to reach out to our engineers if you've got a project that we could help with! www.1-act.com/contact-act/

[@yeon422]

Very useful presentation~! Thank you for giving this video. I am wondering if you have an heritage on application of aerospace especially heat pipe.

[@AdvancedCoolingTech]

Hi Yeon- Yes, we do have spaceflight heritage. You can read more about it here: www.1-act.com/products/spacecraft-thermal-control-products/ and here: www.1-act.com/products/constant-conductance-heat-pipes/ Reach out to us if you have a specific application you would like to discuss! 717-295-6061 or [e-mail]

[@STUCASHX]

I wonder what the comparable performance is between a copper/water and an Aluminium/Amonia heat pipe...🤔

[@AdvancedCoolingTech]

Hi there, thanks for the comment. We actually cover that topic in this whitepaper: www.1-act.com/wp-content/uploads/2023/05/Copper-Water-and-Hybrid-Aluminum-Ammonia-HP.pdf. Let us know if you have any further questions by dropping us a line on our website!

[@kamudankemter]

Thanks.

[@chuckbuckets1]

I have never seen these used in the automotive industry. Seems like a perfect fit. If it is used, it is uncommon, does anybody know why?

[@nomanraja339]

Did you consider same wick properties like porosity, particle size diameter etc. for different diameter of heat pipe like 3,4,6,8 and 10mm?

[@adhotec]

Thanks for giving good video.

[@Schroeder9999]

Can these heat pipes be used for homogenizing heat over a heating plate? Say up to 400°C?

[@AdvancedCoolingTech]

Hey there, great question! Yes, it’s a typical use case for heat pipes to isothermalize a surface. The temperature range would be a function of the fluid and 400 C is out of normal operating range for most common working fluids. ACT would be the best fit to solve this challenge though. If you have more details you can provide on the application please email them to [e-mail]

[@Schroeder9999]

@@AdvancedCoolingTech Hi Thanks for the reply. I have no real life application for the heat pipes yet at moment, but your video provided a very interesting insight to what might be possible. Will save your video link for future requirements. By the way what would the typical temperature limit be like?

[@AdvancedCoolingTech]

@@Schroeder9999 Great question. This section of our Heat Pipe 101 covers Merit Number, which gives ranges for various working fluids: www.1-act.com/thermal-solutions/passive/heat-pipes/heat-pipes-101/#jumpTo__h3-selecting-a-heat-pipe-working

[@jeffreylebowski4927]

Thank you very much for all of that interesting information!

[@AdvancedCoolingTech]

Absolutely! Thank you for taking the time to watch and learn more about our heat pipes! Visit our website for more information, we have an entire learning center dedicated to them! www.1-act.com/resources/learning-center/heat-pipes/

[@georgiivanov5100]

Do you know if there are a heatpipes with bigger diameters (>40mm) on the market?

[@AdvancedCoolingTech]

Not likely to find standard heat pipes (off-the-shelf) in that size, but they can be made if the project warrants it. ACT makes IFLs (a type of heat pipe) for the calibration industry with inner diameters of several inches.

[@RustyH1000]

Hi, On the slide at 26mins, what is the equation you use to approximate the thermal resistances?

[@brunomiranda3203]

How do you compute the thermal conductance in slide 22 from the thermal conductivity of 26.7 W/m-K. Do you multiply it by 1 inch (evap length). I have a model that needs the thermal conductance i.e. W/K

[@hafizuddinmohdlowhim8426]

Can water boils at 25C?

[@AdvancedCoolingTech]

Great question! Yes. Heat pipes are processed under vacuum, so the fluid will operate along its saturation curve. Water would be in two-phase and able to boil at 25 C.

[@maagu4779]

Interesting but you are not really "selling" the idea! Think residential applications: heat pumps, air conditioning systems and refrigeration. How can your idea make my product better and save money?