Q. for the know it alls on Evaps

[PMM]

Just got something silly in my head and thought I put across this question

As many will know temps measured on Prommies / Vapochills tend
to be far lower than the CPU temp.

Now I know there will always be a temp differernce between the actual
Die and the temp of the cooling surface as there is no 100% heat transfer.

But I got thinking is that all it is when you chaps quote these figure ?

What i'm asking is on an evap head is the initial base surface thats in 1st
contact warmer than the top near to exit ? difference in flooded base to evaporated top gases or at point of evaporating.

thx in advance

[HawainPanda]

not 100% sure, but I think the entire block is the same temp, that?s why it takes a while for the prommy or vapo to stabilize its temperature

[chilly1]

Your talking about a temperature gradient across the block. This equates to superheat or about 4 to 6 degrees of superheat for these small evaporators whth the discharge a little warmer than the injectionpoint of the refrigerant.
In other words where the refrigerant is first seen to boil it will be 4 to 6 degrees warmer at tehpoint where it exits the block if it is indeed colder than we would have liquid refrigerant flowing down the suction line. This does occur under no load or low load conditions.

[PMM]

Thanks Chilly1 :)