What affects the vapor production the most?

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The Easy Vaper

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In your condition, for vapers themselves, the most important factor is surely lung capacity. Next it's the VG content of the juice you use.

Actually I dont beleive its lung capacity :p Cuz I dont have any problems sucking those huge clouds in.... The problem is when I blow out I almost suffacate if I took a long drag :p Its just soo much... too much to handle ;P but I do notice Im allready getting used to it :p
 

Two_Bears

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I hear ya man ... vape technology is progressing so fast it's hard to keep up. I don't really try to keep up, I just thought TC was probably a great experimentation tool and wanted to learn how it worked too. I explored it for about a month back in March and then went back to VW. Kanthal is, IMO, really nice :). When I wanted to get another VW mod with more than 40 watts capability everything I liked was TC too so I got a Sigelei 75 watt TC. No complaints yet but I've only had it for a few days.

VW opened up a whole world of coil design options for me compared to mechs. Separating resistance from power is huge and if you have not tried that I would recommend you do. TC not so much IMO. Its biggest claim to fame is allowing us to avoid burnt hits if you get it right, but I never get burnt hits from my RDAs so that just leaves TC with the advantage of being able to monitor coil temperature while taking a drag. TC is also not plug and play so it has a learning curve and it does add its own complexity to the mix.

I have a TC MOD but don't do TC for two reasons.

1. It only does TC with Nickel that I am allergic to.

2. It only does TC at full power.

I won a Cloupor Mini Plus. It supposedly does TC with Nickel and titanium. When I receive that I will be trying TC.
 

Ryedan

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I guess the biggest change since VW came into the picture was that Ohm is no longer king, but surface area probably is.

Actually I did the experiment of alternately vaping two identical rdas at the same power, built with the same 24 gauge wire, one with twice the surface area, so twice the resistance of the other. 0.2 vs 0.4 ohms. There was very little difference between them in flavor and I could see no difference by looking at the clouds in the mirror.

Then I took the 0.4 ohm build up to 1 ohm using 27 gauge wire which is about the same surface area as the 0.4 ohm 24 gauge build to see if wire gauge made a difference. If there was any difference, it was too small to notice. Vaping 1.0 ohms beside 0.2 ohms really brought home that resistance is pretty much irrelevant in coil design.

That kinda blew those old theories out of the water for me :?:

I stopped experimenting after that because even though I might have found more change to the vape by making the lower surface area smaller and the higher one bigger, I figured people were already doing that with some of the complex twisted and braided builds out there and they don't seem to make much difference either. The do look impressive though.

Someone is going to figure this stuff out one day. Maybe :)
 
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Two_Bears

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Actually I did the experiment of alternately vaping two identical rdas at the same power, built with the same 24 gauge wire, one with twice the surface area, so twice the resistance of the other. 0.2 vs 0.4 ohms. There was very little difference between them in flavor and I could see no difference by looking at the clouds in the mirror.

Then I took the 0.4 ohm build up to 1 ohm using 27 gauge wire which is about the same surface area as the 0.4 ohm 24 gauge build to see if wire gauge made a difference. If there was any difference, it was too small to notice. Vaping 1.0 ohms beside 0.2 ohms really brought home that resistance is pretty much irrelevant in coil design.

That kinda blew those old theories out of the water for me :?:

I stopped experimenting after that because even though I might have found more change to the vape by making the lower surface area smaller and the higher one bigger, I figured people were already doing that with some of the complex twisted and braided builds out there and they don't seem to make much difference either. The do look impressive though.

Someone is going to figure this stuff out one day. Maybe :)

I think I have. I REALLY REALLY prefer my ohms rating to be .8-1 ohm.
 
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Two_Bears

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We're all allergic to nickel it causes cancer. At least that is what some are saying on you tube. I think they are probably right so won't be using it.

That is true for power mode. It you use it in TC AT 550 or less it is OK. The problem is when the coils oxydize and you inhsle Nickel oxide.
 

Ryedan

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I think I have. I REALLY REALLY prefer my ohms rating to be .8-1 ohm.

IMO it's probably not the resistance by itself that you like, it's the combination of wire gauge and ohms that gets you into a heat flux range and flavor profile that you like with the air flow and power you're using.

The thing is without actually experimenting with all the variables you don't know how much each variable influences your vape to behave the way it does.

The problem is it's hard to analyze it because of the number of interrelated variables. It really needs someone to do a few 'design of experiments' and see what pops out of the data. I've done my fair share of these for work, but they are time consuming and vaping has never really irritated me enough to motivate me do the work. It would definitely be a neat project to do and it would be great to finally get more accurate knowledge about how the vape process really works.
 

Two_Bears

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IMO it's probably not the resistance by itself that you like, it's the combination of wire gauge and ohms that gets you into a heat flux range and flavor profile that you like with the air flow and power you're using.

The thing is without actually experimenting with all the variables you don't know how much each variable influences your vape to behave the way it does.

The problem is it's hard to analyze it because of the number of interrelated variables. It really needs someone to do a few 'design of experiments' and see what pops out of the data. I've done my fair share of these for work, but they are time consuming and vaping has never really irritated me enough to motivate me do the work. It would definitely be a neat project to do and it would be great to finally get more accurate knowledge about how the vape process really works.

I use simple coils Kanthal and the gauge is 28 on my kayfun nano bell cap and 26 on my GMini. I use an ultra short 17mm drip tip. On the Kayfun Lite Plus Nano. Stands 11-12 mm above the Bell cap.

.8 - 1 ohm seems to be the sweet spot for the vape I enjoy
 
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Boden

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IMO it's probably not the resistance by itself that you like, it's the combination of wire gauge and ohms that gets you into a heat flux range and flavor profile that you like with the air flow and power you're using.

The thing is without actually experimenting with all the variables you don't know how much each variable influences your vape to behave the way it does.

The problem is it's hard to analyze it because of the number of interrelated variables. It really needs someone to do a few 'design of experiments' and see what pops out of the data. I've done my fair share of these for work, but they are time consuming and vaping has never really irritated me enough to motivate me do the work. It would definitely be a neat project to do and it would be great to finally get more accurate knowledge about how the vape process really works.
I've been thinking about the test all day and have come up with a simple test rig. A constant flow air pump to keep airflow consistent. Use a VW power supply so resistance doesn't matter. Run power supply at a fixed wattage.

Build several coils with different guage wires with the same width and ID, add 1 ml of juice to a standardized wick, weigh atty + juice, run a set series of 10 second "puffs", weigh atty again to calculate weight of evaporated juice.

Change to the next coil and repeat.

The coil that evaporates the most eliquid wins :)
 
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Ryedan

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I've been thinking about the test all day and have come up with a simple test rig. A constant flow air pump to keep airflow consistent. Use a VW power supply so resistance doesn't matter. Run power supply at a fixed wattage.

Build several coils with different guage wires with the same width and ID, add 1 ml of juice to a standardized wick, weigh atty + juice, run a set series of 10 second "puffs", weigh atty again to calculate weight of evaporated juice.

Change to the next coil and repeat.

The coil that evaporates the most eliquid wins :)

I like the way you think Boden :)

Done accurately enough that will certainly answer the question; which of these setups will vaporize liquid most efficiently. It would then be up to those who have the data to figure out why the results turned out as they did.

For example, if your watt density on the wire is too low you will not get it hot enough to vaporize anything so its efficiency would be 0%. Once it starts vaporizing the efficiency would go up until it peaks and then it may well go down again. I am pretty confident that the first two parts will turn out to be correct, but I have not tested it so I can't be sure and I have no idea what the curve looks like. I imagine a quick ramp up of efficiency followed by a long reasonably flat curve in the middle and then who knows what happens next, why it happens and where it happens.

Coil heat up and cool down time might need to be taken into consideration if there much difference between the setups.

It would however be a fascinating experiment to do and would certainly add to our knowledge base.
 

The Easy Vaper

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Heey everyone,

I might have an answer to this as I tried... i dont know? 20 different coils?
My snowwolf 200w broke down and all I was left with was my I stick 30w.

My previous coil builds were all kinda similar, some being a bit better compared to others.
So i was used to big clouds at this point and intese flavor as well. When I went back to the istick 30w,
I screwed my mutation x v4 on it to build my own coils made for 30w.

So, I was a bit desperate to get the flavor and clouds back and tried to build even more coils.
I build long coils, shorter dual coils, twisted dual, twisted single... all sorts of things.
What I noticed was that my aspire atlantis blew the same kinda clouds as my own coils...
And there is just a simple coil in the atlants... So i was like.... wtf... maybe surface area doesnt matter.

Instead I build a coil for low heat capacity and a warm vape! (higher heat flux)
IT IS JUST A FREAKING SINGLE COIL .5 ohm, 5 wraps (24g wire) ONLY! LIKE? SUPER SIMPLE! this is the theoretical coil:
http://www.steam-engine.org/coil.asp?a=true&tp=1&r=0.49&hfnw=30&awg=24&id=3

Guess what? It produced way better clouds.... or well.... NOTICABLY better clouds compared to the other builds
as well as the aspire atlantis. So my guess is, slow coils, with a cool vape (lower heat flux) just work better.
Although the surface area is less, it outpreformed another coil (same 24g wire) duel coil with idk... 11 wraps?
This one right here:
http://www.steam-engine.org/coil.asp?a=true&tp=1&s=dp&r=0.51&hfnw=30&awg=24&id=3

As you can see.... Roughly same ohm, same watt ofc... more then 2x surface area.... DUAL COIL!
heat capacity still under 100.... but a very cool vape... and guess what.... It kinda sucked XD

So surface area is not everything.... Now my snow wolf died on me... Getter a new one probably soon.
But what I wanna try is this build:
http://www.steam-engine.org/coil.asp?a=true&tp=1&s=dp&r=0.11&hfnw=150&awg=20&id=3

This simple build might actually be one of the best. Just 20g, dual coil 5 wraps with 3mm inner diameter.
(resulting in roughtly .11 ohm)

Surface area is not spectacular, however, it is much hotter, and has a low heat capacity. It is a higher heat
capacity compared the other other builds above in this post, but those are suitable for a 30w device...
With 100-200w at your disposal you can obviously go higher with heat capacity.

Can som1 confirm this or try this out? Since I cant test it right now with a broken mod :p
 

Two_Bears

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Heey everyone,

I might have an answer to this as I tried... i dont know? 20 different coils?
My snowwolf 200w broke down and all I was left with was my I stick 30w.

My previous coil builds were all kinda similar, some being a bit better compared to others.
So i was used to big clouds at this point and intese flavor as well. When I went back to the istick 30w,
I screwed my mutation x v4 on it to build my own coils made for 30w.

So, I was a bit desperate to get the flavor and clouds back and tried to build even more coils.
I build long coils, shorter dual coils, twisted dual, twisted single... all sorts of things.
What I noticed was that my aspire atlantis blew the same kinda clouds as my own coils...
And there is just a simple coil in the atlants... So i was like.... ...... maybe surface area doesnt matter.

Instead I build a coil for low heat capacity and a warm vape! (higher heat flux)
IT IS JUST A FREAKING SINGLE COIL .5 ohm, 5 wraps (24g wire) ONLY! LIKE? SUPER SIMPLE! this is the theoretical coil:
http://www.steam-engine.org/coil.asp?a=true&tp=1&r=0.49&hfnw=30&awg=24&id=3

Guess what? It produced way better clouds.... or well.... NOTICABLY better clouds compared to the other builds
as well as the aspire atlantis. So my guess is, slow coils, with a cool vape (lower heat flux) just work better.
Although the surface area is less, it outpreformed another coil (same 24g wire) duel coil with idk... 11 wraps?
This one right here:
http://www.steam-engine.org/coil.asp?a=true&tp=1&s=dp&r=0.51&hfnw=30&awg=24&id=3

As you can see.... Roughly same ohm, same watt ofc... more then 2x surface area.... DUAL COIL!
heat capacity still under 100.... but a very cool vape... and guess what.... It kinda sucked XD

So surface area is not everything.... Now my snow wolf died on me... Getter a new one probably soon.
But what I wanna try is this build:
http://www.steam-engine.org/coil.asp?a=true&tp=1&s=dp&r=0.11&hfnw=150&awg=20&id=3

This simple build might actually be one of the best. Just 20g, dual coil 5 wraps with 3mm inner diameter.
(resulting in roughtly .11 ohm)

Surface area is not spectacular, however, it is much hotter, and has a low heat capacity. It is a higher heat
capacity compared the other other builds above in this post, but those are suitable for a 30w device...
With 100-200w at your disposal you can obviously go higher with heat capacity.

Can som1 confirm this or try this out? Since I cant test it right now with a broken mod :p

Sorry your snow Wolf 200 died. I prefer single coils.
 
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