New studies find carcinogens in vg and pg at high temps, even in tootle puffers

[Katdarling]

I am now officially afraid to make (even/just) soup.

Am I going to have to eat that absolutely disgusting "Viscious-what(EVER!)" stuff from here on in?

Carry on.

 

[CMD-Ky]

I am now officially afraid to make (even/just) soup.

Am I going to have to eat that absolutely disgusting "Viscious-what(EVER!)" stuff from here on in?

Carry on.

I'm looking for a bucket of that "pink slime" I am hearing about; it must be safe or they couldn't sell it, right?

 

[DPLongo22]

I'm looking for a bucket of that "pink slime" I am hearing about; it must be safe or they couldn't sell it, right?

A little teriyaki sauce and we barely even notice it.

Pass the vichyssoise, now that I think about it.

 

[awsum140]

But the potatoes need to be cooked in a pot for Vichyssoise, which is actually quite good by the way.

 

[Rossum]

Well... I guess if I am ever vaping Sulfur Hexafluoride while floating around on MIR, then that would be something to Consider.

And even then, it would require you to be doing so in a sealed container of constant volume.

"The overheating doesn’t violate the laws of thermodynamics because the expanding liquid performs mechanical work; the phenomenon would be impossible in a purely diffusive system."

 

[DPLongo22]

But the potatoes need to be cooked in a pot for Vichyssoise, which is actually quite good by the way.

Yes, it is quite good. I was only kidding.

I'm not really afraid to make soup either (just to complete the loop).

 

[zoiDman]

And even then, it would require you to be doing so in a sealed container of constant volume.

"The overheating doesn’t violate the laws of thermodynamics because the expanding liquid performs mechanical work; the phenomenon would be impossible in a purely diffusive system."

Just me.

But I like to only vape in Diffused Systems where my e-liquids obey the Classical Laws of Thermodynamics.

 

[Rossum]

Just me.

But I like to only Vape in Diffused Systems where my e-Liquids obey the Classical Laws of Thermodynamics.

Me too, which is why I do not worry about my vapor getting hotter than the heat source, i.e. the coil.

 

[sofarsogood]

How the liquid turns into vaper is worth understanding and I'm sure i still don't understand it.

BTW I tried the boiling water test on a vtc mini and it was giving me something like TCR or TFR error and wouldn't go above 70 F before cutting out. After rewicking and changing to e liquid things seem to be back to normal. Then I believe I got one try where the peak temp reached was 212 F. The max watts was set to 30 and may be that needed to be higher but it seemed like it didn't like the water which it spit around in a lively way.

 

[USMCotaku]

The liquid can get hotter than the heat source depending on how long it is in contact with the heat source and how fast it can dump heat. A car left in the sun gets hotter than surrounding air because it can hold more heat. May be somebody here can express that more accurately than I just did.

Liquids generally don't act in this way. It tends to lower the heat of the system when changing state (this is how water puts out fire, the changing states from liquid to steam lowers the fire temp to below combustible levels). In a system where heat is constantly applied, you would end up with a zero sum at some point.....no more heat can be generated, but the liquid unable to lower the temp either. This seems to me what happens in a mech. In a regulated device, you could up the voltage high enough that the coil temp would continue to get hotter and hotter, but I don't imagine that would be a pleasant vape.

Sent from my SM-N920T using Tapatalk

 

[GeorgeS]

How the liquid turns into vaper is worth understanding and I'm sure i still don't understand it.

BTW I tried the boiling water test on a vtc mini and it was giving me something like TCR or TFR error and wouldn't go above 70 F before cutting out. After rewicking and changing to e liquid things seem to be back to normal. Then I believe I got one try where the peak temp reached was 212 F. The max watts was set to 30 and may be that needed to be higher but it seemed like it didn't like the water which it spit around in a lively way.

Its best to start with a dry wick with long tails. Dip the tails in a glass of water and then use very low wattage. Just enough power to reach ~200F in 5-10 seconds. Longer is better. Leave it open/exposed. Attempting to regulate the wicking of water in a tank is fruitile. Mods with hit timers are much more difficult to profile.

The readout of Joytech/Wismec/eLeaf mods tend to jump around.

 

[Rossum]

How the liquid turns into vaper is worth understanding and I'm sure i still don't understand it.

I suspect it's quite simple: Liquid boils on the surface of the wire. Due to its viscosity and surface tension, this forms small bubbles, which burst into tiny droplets that are carried away by the airflow.

ETA: Pulse a wet, wicked coil under a magnifier just to the point where it starts to give off vapor and you can see this pretty clearly.

 

[sofarsogood]

Its best to start with a dry wick with long tails. Dip the tails in a glass of water and then use very low wattage. Just enough power to reach ~200F in 5-10 seconds. Longer is better. Leave it open/exposed. Attempting to regulate the wicking of water in a tank is fruitile. Mods with hit timers are much more difficult to profile.

The readout of Joytech/Wismec/eLeaf mods tend to jump around.

I used an rda with a deep well and added water as need from a driipper bottle. If I get it working may be I'll make a video like the first two. i'm going to try some other devices and methods. The vtc mini is running the arctic fox firmware but I believe I was using the stock tcr values. The 70 F limit was interesting but now I'm wondering was it 70 F or 70 C? Tomorrow is another day. And that build would still pass the cotton burn test in the usual fashion.

 

[NU_FTW]

and in the absence of gravity, convection and other complicating effects are eliminated. So according to computer simulations, the piston effect should predominate if a near-critical fluid is warmed in space.

 

[GeorgeS]

I used an rda with a deep well and added water as need from a driipper bottle. If I get it working may be I'll make a video like the first two. i'm going to try some other devices and methods. The vtc mini is running the arctic fox firmware but I believe I was using the stock tcr values. The 70 F limit was interesting but now I'm wondering was it 70 F or 70 C? Tomorrow is another day. And that build would still pass the cotton burn test in the usual fashion.

You do realize that the stock firmware on all those devices have a real time temperature read out right?

It sounds like you may of water logged or flooded your coil. Hence why I use long tails hanging outside of the atomizer base so I can carefully dip the ends in a water source. If the wick is 'water logged' all that will happen is your atomizer base will start getting warm as all the radiated heat attempting to get the soggy water soaked wick even over 100F will be to much.

It is very easy to have TO MUCH water. What the wick will naturally soak up on its own is ideal.

 

[awsum140]

Yes, it is quite good. I was only kidding.

I'm not really afraid to make soup either (just to complete the loop).

I figured you'd have the wherewithal to make soup, even if it got hotter than the pot it was in Just yankin your chain.

 

[MacTechVpr]

I suspect it's quite simple: Liquid boils on the surface of the wire. Due to its viscosity and surface tension, this forms small bubbles, which burst into tiny droplets that are carried away by the airflow.

Oh, I can see it pretty clearly. But this doesn't appear to be the case here…as "it" seems to exude from every pore of every centimeter of this build. Although I do think there are simple explanations. Just sayin'.



Good luck.

p.s. The airstream at about 72 deg. here wasn't from a directed fan but a single duct 30' or more feet up and away in the lobby of my building.

 

[Rossum]

Oh, I can see it pretty clearly. But this doesn't appear to be the case here…as "it" seems to exude from every pore of every centimeter of this build. Although I do think there are simple explanations. Just sayin'.



Good luck.

p.s. The airstream at about 72 deg. here wasn't from a directed fan but a single duct 30' or more feet up and away in the lobby of my building.

Well, in that picture it looks to me like you're well beyond "just to the point where it starts to give off vapor."

 

[Ivp5man]

I use kanthal wire so how should I use TC mode with that? I use 28g with 8 wraps on 2.5 jig that gives me 1.6 ohms that I vape at 12w.

 

[MacTechVpr]

Well, in that picture it looks to me like you're well beyond "just to the point where it starts to give off vapor."

I may suck at math and physics ros but Felix got a few tricks in the bag. Point of the example being vaporization can happen generally. Of greater concern to my personal study and on this forum is to better understand where, when and how specifically. Of these the wire surfaces seem the least hospitable, if not undesirable.

G'luck.