Input the cross sectional area m 2 add your materials thickness m enter the hot side temperature c enter the cold side temperature c.
Thermal paste conductivity calculation.
The thermal conductivity of a material is a measure of its ability to conduct heat it is commonly denoted by or.
I my case area is 0 01m 0 009m 0 0000054 sq m k is 1 7 and i have no clue what thickness will be.
Price is normally set based upon thermal conductivity and the amount of compound in the tube generally in the range of 3g which is a few uses.
So rglue thickness area k k thermal conductivity.
Heat transfer occurs at a lower rate in materials of low thermal conductivity than in materials of high thermal conductivity.
Or select a value from our material database.
I found in the manufacturers datasheet is has a thermal conductivity of 1 6w mk watt meter kelvin.
You can see that the thermal compound is actually a poor heat conductor and that is exactly the reason why you only need a very thin layer of paste to fill the micro imperfections between.
The parameters used to calculate thermal conductivity are the steady state temperatures the heat used for the warmer plate and the thickness of the material.
Carbon dioxide thermal conductivity online calculator figures and table showing thermal conductivity of carbon dioxide co 2 at temperatures ranging from 50 to 775 c 50 to 1400 f at atmospheric and higher pressure imperial and si units.
This tool generates a quick estimate of the expected junction temperature based on the copper spreading area on the pcb.
I took 0 1mm as a wild guess.
Enter the thermal conductivity of your material w m k.
I m trying to calculate the thermal paste joint between my pcb and the heatsink.
How does the heat transfer conduction calculator works.
Convective heat transfer heat transfer between a solid and a moving fluid is called.
The heat transfer conduction calculator below is simple to use.
But heat sink will be glued using thermal glue like hc910 which has thermal conductivity of 1 7 w m k.
Whilst all other data i have for the heatsink is in c w.
It is very accurate but takes a significant amount of time to.
A tube of 8 5w mk carbon based compound which is.
For example the thermal conductivity of a high grade thermal paste is 8 5 w mk and the heat conductivity of copper is 385 w mk or for aluminum 205 w mk.
The pcb thermal calculator helps you estimate the junction temperatures of components which use exposed pad packages.
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