Voltage is king? How about wattage?

[MickeyRat]

Lessee six tried it, I tried it. I'll try again.

Let's assume that you are running 8 watts. You've already said you recognize that at 3V the coil will have less surface area than the 5V coil. Both coils dissipate 8 watts of energy, primarily as heat around it's surface. However, the 3V coil has less surface area. So, for it to dissipate the same energy as the 5V coil it will have to be hotter. That higher temperature (not energy) causes the vape to have a different taste and feel.

If you go by energy alone, you might think that using the same amount of energy a steak cooked at 1000 degrees would taste the same as a steak cooked at 200 degrees. I haven't tried that but, I'm willing to bet it won't.

 

[Sedateme]

So lower ohm coils run hotter at a given wattage than higher ohm coils, thereby affecting juice taste. THAT is an answer I can wrap my head around, and addresses my original question. Slapping a low ohm atomizer/carto on a low voltage device will not be the same as a higher voltage device paired with a higher ohm atty/carto at a given wattage.

Thank you!

 

[six]

I'm very curious as to how quickly a coil heats up changes the taste? does water vapor that was brought to a boil slowly taste differently than water vapor that was brought to a boil quickly? I really don't get this one, and would appreciate more info... [...]
.. so... does water vapor boiled in a smaller but hotter pan taste differently than water vapor boiled from a larger but cooler pan??

OK. I think I can explain this. The length of time it takes the coil to get to temperature is all part of the experience of taking a drag from a PV. With a cigarette, it was hot and stayed hot from the time you lit it until the time you put it out. (and worth adding here, but not directly addressing what we are talking about, --- you could effect flavor by hotboxing a cigarette). A PV isn't like that.

When the coil begins to warm up and get up to temperature, it isn't instantly at peak efficiency of it's maximum thermal output. It takes a certain period of time for the coil to overcome the resistance of the juice and begin to vaporize it. Going from 0-8 watts is like going from 0-75 mph in the car analogy. If you think of the 5.0v device as the vehicle with the bigger motor, then it sort of makes sense.

So, as the coil warms up, it is producing a different amount of thermal energy until it is at peak. The same is true for the 5.0v device with the higher ohm coil, but the 5.0v device gets to its peak output much faster, so that period of warm up time is shorter and the vapor and flavor are more consistent.

 

[MickeyRat]

Slapping a low ohm atomizer/carto on a low voltage device will not be the same as a higher voltage device paired with a higher ohm atty/carto at a given wattage.

Thank you!

It isn't the same but, it's pretty close. As I said earlier in this thread, I find the LR stuff to be a bit hot and harsh. The 510s in particular are bad about this. The 901s not as much. A lot of people prefer that heat, I'm not one of them.

You're welcome

 

[AttyPops]

How about this.

1) LR stuff uses a smaller coil and won't last as long, as a general rule. That's "clogs up faster" as well as "dies quicker". Clogging changes the vape.
2) It would be cool to have a rating for calories of heat released per square mm of coil surface area per second. Then we could really debate the hell out of this. There's probably a real world measurement of this for engineers. IDK. Low cal atties are funny tho.
3) It's all experiential anyway. Try it.

 

[ScottinSoCal]

can someone explain to me how this would taste different? If you are operating at the same wattage, I can't see how the taste would be any different, regardless if you got to 8 watts via a 5 volt battery and one resistance of atty, vs 8 watts via a 3 volt battery on a different resistance atty...

Because that's not the only thing that changes. In order to get the same wattage at a higher voltage, you have to go with a bigger (higher resistance is a function of the length of the wire used for the coil) heating coil in the atty/carto. That creates more surface area, more liquid in contact with the heated surface. Whether the change is for the better or for the worse is going to depend on your taste buds, the configuration of the coil, the juice, all kinds of things.