Coil performance

[Domkayfunimous]

I've been playing with lots of coil builds on my rda and I have a question.

I've noticed that with using 26g wire, that a 5/4 wrap on a 6-32 screw, (open coil) that shows .7 ohm heats up slower and produces far less vapor than a 7/6 wrap (tight, closed or micro) on a .075" gauge pin that also shows .7 ohm.

Both are single coil builds.

Why does the closed coil offer such a performance advantage at the same resistance?

 

[TheRac25]

some kind of thermal cascade effect, posibly due to infrared reflecting inside the coil and off adjacent wraps

or

open coil has more sinking area on the wick which it has to overcome

or

some combination of the above

 

[bcalvanese]

Simple.

The circumfrence of the conductivity of the square root of the thermal breakdown of each cloil divided by the number of coils to the 10th power is inversly perportional to the reactive conductivity of the total length of the wire times the space between each coil divided by the absorbanticity of the wicking material squared by a factor of .021379 plus the size of the chamber.

You didn't know that?

 

[DaveP]

One is a Micro coil and the other is a Nano. More turns contact more wick area, vaporize more juice, and produce more flavor.

Or, as bcalvanese said:

The circumfrence of the conductivity of the square root of the thermal breakdown of each cloil divided by the number of coils to the 10th power is inversly perportional to the reactive conductivity of the total length of the wire times the space between each coil divided by the absorbanticity of the wicking material squared by a factor of .021379 plus the size of the chamber.