Kr808d-1 carto's. How hot is hot?

[earthpig]

I have been trying to find out the temperature (F) that the atomizers in a KR808D-1 get.
I know this might be a slight variable, depending on resistance and voltage, and yet I am curious of what is the industry standard. My batteries hit 4.2-4.3v directly after a recharge, but yeah, I know that is short lived, and they drop to a low of ~3.4v near being dead.

So my interests are in wether there:
a) is an industry standard.
b) is there a standard max temp.

Reason? I think I understand there is a steaming point to PG + VG. What is it? but secondly what about the flavorings. It would seem they don't get steamed, but are instead carried in the base (PG/VG) steam. It is a concern when considering mixing flavors in, that they don't get broken down(burned) into differing components than they are originally.

c) Is my above assumption correct?

My unit is an unknown and sold by 21centurysmoking.com

Thanks folks.
Da pig

 

[Papa Lazarou]

As far as I know, this is more determined by the laws of physics than industry standards Basically, if the cartomizer is wet (as it should be) then the heating element temperature will be regulated by the liquid in the cartomizer. As liquid is vapourised, new liquid flows through the wadding material to the heating element, and so not allowing the metal to heat up excessively, and it all works as a continuous process. When high voltages are used, I suspect that an issue can be that the liquid is vapourised faster than the material can wick liquid to the heating element, and it gets hotter than it should.

When dry, it's a different matter. Dry burning an atomizer results in the metal coil glowing bright cherry red or orange (usually it stops working beyond that!!). While I cannot say what temperature this is, a glance at metal temperature colour charts would suggest that it's getting pretty damn hot! PROCESS ASSOCIATES

This is a good reason why cartomizers should not be allowed to run dry - when the liquid runs out the coil starts to heat excessively and burns the polyfill material.

I can't really add much on what exactly is happening to the various compounds during the vaporisation process, and whether different compounds are produced. Perhaps someone will comment further on this.

I believe the flavourings are mostly vapourised, but some elements in liquid may be non volatile, and these elements deposit on the coil and over time eventually result in poor performance. Most e-liquid manufacturers will strive to minimise the amount of non volatile chemicals in their liquid. With cartomizers, the filler material itself degrades over time as well, so they do have a finite life.