Hello there,
I just registered because of this topic, because I find it rather interesting and I'd like to revive it.
Why?
Because figuring this out helps to not always needing to trial and error and instead just have a rough idea how to get the sensation of an average cig's nicotine into your vape or some (lower) percentage of it just only to get an idea.
So for what?
Using same juice at different wattages, in different device or knowing how many nic shots(mg/ml) to put into your shortfill for a given coil(resistance) and wattage
and to figure a conversion how a different setup would do different. I do not see why this couldn't be done, at least in a very rough way.
Some people might be satisfied to know a list of examples and extrapolate from there, but it would be really nice to find a rough rule of thumb formula,
which works for say typical industry coils with ignoring the slight differences of PG/VG used among ohm and sub-ohm vaping and all these "other factors".
In short:
Estimating a percentage or perceived nicotine sensation by having a liquid and changing parameters coil and wattage, eg. by comparing it to a traditional stinky cig's nic strength.
Don't you think it would be useful after all?
It should be possible to find a rule of thumb formula with inputs:
Wattage(watt), Resistance(ohm) and Nicotine concentration of your juice (mg/ml)
And the output:
"perceived strength" (mg/ml) per inhale
The problem could be simplified a lot, if we assumed a standard cig strength of 18mg/ml at 1ohm with 16 watt (in a typical industry MTL RTA tank/coil, which has nice numbers and is about what most people use)
and then retrieve a rough estimated "percentage of full cig pull per vape pull"(in %) based on this with a conversation rule/formula.
So all what would be left is wattage(watt) and resistance(ohm) to calculate a factor/percentage we can apply to a given juice concentration(mg/ml),
so we can use to figure how strong we would perceive this juice roughly as a percentage of a normal cig (18mg/ml, 1ohm, 16 watt).
Ohms law is pretty well known, but we just do not know how to apply it to this problem (yet).
On this topic the information available online is very scarce, confusing and partially even contradictionary, since false information is shared a lot too,
but many people seem to have a rough idea how strength scales with wattage and resistance, which makes me believe it should be a possibility.
I found this one, but it contains small mistakes and is quite a bit confusing:
And there is this one, which can be put into a simple formula, if you would multiply wattage while dividing resistance by the same factor:
https://www.e-cigarette-forum.com/threads/does-higher-wattage-stronger-nicotine-delivery.720431/
If this is true, it comes very close to a solution, and we'd just miss in what (mathematical) relation resistance and wattage are, when it comes to "perceived strength".
It could be something as simple as:
"Perceived Strength(mg/ml)" = K x "Juice Strength(mg/ml)" x "Wattage(watt)" / "Resistance(ohm)"
where K is some constant we just need to figure out by using any example(eg. 18mg/ml, 1ohm, 16 watt) and see how it extrapolates.
But this would require that wattage scales proportional, so like 60watts would be roughly twice the strength of 30watts (at fixed resistance)
and resistance scales inversely proportional, so 0.5 ohm twice the strength of 1ohm or say half resistance is double the strength (at fixed wattage).
However some people disagreed to these statements, so it might be not just this, but what is it then?
I do not have enough experience to know it myself yet, but we can only solve this,
if we can agree on how both things scale with each other in terms of strength to find a mathematical relation between them.
And if we do, we should be able to find a rough rule of thumb formula quite easily.
I hope this wall of text and talk of math didn't put too many people off, but instead inspired some enthusiasts.
If you know a link with a formula or figured something out by yourself that you works for you or you know how increasing wattage and lowering resistance relatively increases strength(as a formula), please share it.
That would be awesome!
Thank you for everyone who chewed through this entire bulk!