Atomizer effeciency

[srolesen]

Do e have any benchmarks for how effective atomizers are at vaporizing ejuice compaired to the theoretical max ?

Reason i'm askong is because i seem to get a LOT longer runtime with ce2 atomizers compaired to cartomizers so what's up with that ?

 

[Killjoy1]

Well, one thing to consider (keep in mind that CE2's are cartomizers, just a different style) is that with something like a CE2 you can vape practically every drop of juice in it, but with a carto with filler you can't. For example, by my best estimate I can only vape a little over half the juice in an XL dual coil before it needs to be topped off, so that's a little less than a ml of juice that essentially can't be vaped.

 

[srolesen]

Yeah but with ce2 xl i seem to get about 4 ml of vaporized juice where as refillabe cartos i Have trouble vaporizing 3 ml before batteries need recharging, anyone got the same experience ?

 

[WillyB]

Well your CE2's are basically atomizers. They have the horizontal coil sitting in a ceramic cup, pretty standard atty construction. Traditional cartos are whole different breed with their vertical coil wrapped in filler.

You also didn't mention the ohms you are using.

 

[srolesen]

2,8 ohm for ce2's and 3 for carto's

As for weather a ce2 is a cartomizer or not idk, as i understand it cartomizer is when coil and juice is kept in same champer and clearomizers are when they re seperated and wicked into coil

But how much difference is there in the effeciency of vaporizing ejuice with diff methods, and how far are we from basic physic limitations ?

 

[Traver]

2,8 ohm for ce2's and 3 for carto's

As for weather a ce2 is a cartomizer or not idk, as i understand it cartomizer is when coil and juice is kept in same champer and clearomizers are when they re seperated and wicked into coil

But how much difference is there in the effeciency of vaporizing ejuice with diff methods, and how far are we from basic physic limitations ?

A cartomizer is a one piece unit that combines the functions of a atomizer to vaporize the juice and a cartridge to hold the juice. That would make a CE2 a cartomizer.

I am assuming you are using the same voltage on both cartomizers.
That's interesting because it takes the same amount of energy to vaporize a given amount of juice and the 2.8 ohm carto should be using more energy. So the question is where is why is the 3.0 ohm using more energy.

 

[srolesen]

Yeah that has me a bit puzzled too, but who's saying that even 30% of the battery energy is used to actually vaporize ejuice ?

 

[nicotime]

I always thought of a CE2 as being a hybrid of an atomizer and a carto.

The CE2 keeps the heat in a small area so it would be more efficient than a carto where some heat is lost due to heating the juice in the filler. One thing about a filler type system...as long as the filler is supersaturated the wick can be replenished easily....when the filler and wick reach equilibrium...the filler will have more pull on the juice because of the greater mass...so the wick will have a harder time replenishing. The CE2 has no filler so the wick has no competition for the juice other than gravity.

The greatest efficiency would be like a fuel injection system...juice sprayed on to a heating element....no waste heating other components.....but then there is always that dang pump that needs energy! LOL

 

[srolesen]

Rofl@pump
Yeah i guess more heat is lost to the cartomizer since it seems to get hotter
Still wondering what the theoretical energy is to vaporize 1 ml of ejuice, and how our atomizers meassures up

 

[nicotime]

Rofl@pump
Yeah i guess more heat is lost to the cartomizer since it seems to get hotter
Still wondering what the theoretical energy is to vaporize 1 ml of ejuice, and how our atomizers meassures up

I think there would be too many variables for that...unless you do a benchmark of say how many BTU's to vaporize straight PG or VG....but even to get that figure you would need a controlled test environment which would be irrelevant to our actual setups.

 

[srolesen]

well could try some math to get atleast a rough idea of stuff
1) gonna assume no heat is transferred once eliquid enters gas state at 138C (90%VG, 10%water)
2) room temperature 20C

energy required to raise temperature of 1 gram of eliquid from 20C to 138C=energy required to raise 0.1 gram of water to 138C + energy required to raise VG to 138C->
water: 4.19J/(g*K)=49.4J
VG: 2.41J/(g*K)=255.9J
energy vaporization:
water:2257J/g=225.7J
VG:211J/g=189.9J
total=720.9J
so heating 1 gram of 90% VG and then vaporizing it at 138C should require 720.9J or 0.2W, my battery is rated 1300mah@3.7V=4.81Wh

guess that means my battery should be able to vaporize 24g ejuice, (20ml) on a single charge, in theory that dials in my CE2 at 20% effectivenes and my cartomizer at 15%

 

[srolesen]

on a sidenote it looks like it's possible to save battery power by adding less water to ejuice untill you go below 10% or so