How hot does e liquid actually get

[DougP]

Option D: All of the above?

Jokes aside this thread is actually very interesting...
It appears that the juice actually vaporises before the liquids boiling point.
So how does a vape device actually work and what actually happens to create the liquid to vaporise.
This is the question, it clearly can't be boiling to create vapor

Sent from my LM-G900 using Tapatalk

 

[Puff the Magic Dragon]

I dispute the science!

So do I!

Those bloody scientists claim that the earth is an oblate spheroid.

Everyone knows that the earth is flat!!!

 

[Dela Rey Steyn]

Here is a lekker spanner to throw around...

Ultrasonic Vaping Technology™ ?
Ultrasonic Vaping Technology™ is atomizing e-liquid into vapour by VIBRATION.
Our devices are equipped with a customized ultrasonic vaping chip,
which vibrates at a super-high frequency while working,
hits the surface of e-liquid molecules, makes them magnify, split,
and finally change from liquid to aerosol.

https://www.usonicig.com/technology/

wonder if you can get "spitback" from these?

 

[Grand Guru]

 

[Intuthu Kagesi]

 

[Intuthu Kagesi]

Here is a lekker spanner to throw around...

Ultrasonic Vaping Technology™ ?
Ultrasonic Vaping Technology™ is atomizing e-liquid into vapour by VIBRATION.
Our devices are equipped with a customized ultrasonic vaping chip,
which vibrates at a super-high frequency while working,
hits the surface of e-liquid molecules, makes them magnify, split,
and finally change from liquid to aerosol.

https://www.usonicig.com/technology/

wonder if you can get "spitback" from these?

I would love to try out one of these

 

[Grand Guru]

It's kind of the same technology used by the Innokin Z80 and the Sensis?

 

[Intuthu Kagesi]

It's kind of the same technology used by the Innokin Z80 and the Sensis?

I haven't tried any of those either ... are they available locally?

 

[Stranger]

Instant vs boiling point.

So the science says > boiling point. Does the eliguid not vaporise instantly when it makes contact with a hot surface IE the coil. So we have a set of numbers that state boiling point but we have no numbers that say vaporize point.

Both @DougP and @Intuthu Kagesi have valid points. To make a liquid boil we need to have volume and then apply heat, perhaps to make it vaporise we need tiny amounts mixed with air molecules applied to heat very quickly ???

Is this the question that Hon LIK had to figure out.

If we look closely at a coil, there is a tiny section of wire resisting the electron flow, producing heat and a tiny amount of e liquid touching that small portion multiplied by the many small sections of the coil.

In the very first e cigs there was one very tiny wire

 

[Grand Guru]

I haven't tried any of those either ... are they available locally?

Yes at All Day vapes... you can actually hear the buzzing of the coil vibration when you press the fire button

 

[Intuthu Kagesi]

Instant vs boiling point.

So the science says > boiling point. Does the eliguid not vaporise instantly when it makes contact with a hot surface IE the coil. So we have a set of numbers that state boiling point but we have no numbers that say vaporize point.

Both @DougP and @Intuthu Kagesi have valid points. To make a liquid boil we need to have volume and then apply heat, perhaps to make it vaporise we need tiny amounts mixed with air molecules applied to heat very quickly ???

Is this the question that Hon LIK had to figure out.

If we look closely at a coil, there is a tiny section of wire resisting the electron flow, producing heat and a tiny amount of e liquid touching that small portion multiplied by the many small sections of the coil.

In the very first e cigs there was one very tiny wire

So the science says > boiling point. Does the eliguid not vaporise instantly when it makes contact with a hot surface IE the coil. So we have a set of numbers that state boiling point but we have no numbers that say vaporize point
It's the same number ... per definition; "The boiling point of a substance is the temperature at which the vapour pressure of a liquid equals the pressure surrounding the liquid and the liquid changes into a vapor"

To make a liquid boil we need to have volume and then apply heat, perhaps to make it vaporise we need tiny amounts mixed with air molecules applied to heat very quickly ???
Nope ... Boiling point is the point of vaporisation, (see above) ... this is not to say that other particulates can't be joined in this vapour, such as Nicotine for example

If we look closely at a coil, there is a tiny section of wire resisting the electron flow, producing heat and a tiny amount of e liquid touching that small portion multiplied by the many small sections of the coil.
The coil may well get hotter than the boiling point of the eliquid at points, but only where it isn't in direct contact with the eliquid ... The vapour too can be superheated above the boiling point in question

 

[Stranger]

OK, sometimes when I use my Weber I pre heat it. If I pour water on the lid it does not boil, it gets hot and runs off. If I spit on the lid it vaporizes instantly. Point proven.

 

[Stranger]

but only where it isn't in direct contact with the eliquid ..

Yeah but no but

is that not the job of the wick, to pull the liquid to that point ?

 

[blujeenz]

Not that Im throwing my hat into the ring, I'm busy in the workshop on other things.
However, I did stick a K type thermocouple probe connected to a MT630 temp meter under the coil about 2 wraps in.


Its a 9 wrap SS #26 wire running at 33 w, measured 225 ºC after 4 sec, on top of the wire in the middle saw 342ºC and climbing at the 4 sec mark.
Pretty similar on the Pulse with the Citadel, changed to temp mode 180ºC, saw readings of 240ºC plus on top of the wire roundabout 3 sec.

...and a nice cuppa tea is 65ºC, for what its worth.

 

[Intuthu Kagesi]

Not that Im throwing my hat into the ring, I'm busy in the workshop on other things.
However, I did stick a K type thermocouple probe connected to a MT630 temp meter under the coil about 2 wraps in.
View attachment 240274

Its a 9 wrap SS #26 wire running at 33 w, measured 225 ºC after 4 sec, on top of the wire in the middle saw 342ºC and climbing at the 4 sec mark.
Pretty similar on the Pulse with the Citadel, changed to temp mode 180ºC, saw readings of 240ºC plus on top of the wire roundabout 3 sec.

...and a nice cuppa tea is 65ºC, for what its worth.

Thanks for that ... SCIENCE RULES!

The top of the coil not exposed to eliquid logically would be much hotter, and that you measure 225ºC leads me to believe you were running a 50:50 VG PG, (or a greater % of PG?)

 

[Stranger]

My mate on Instagram said .... rubbish

 

[Intuthu Kagesi]

My mate on Instagram said .... rubbish

Deal with it

 

[blujeenz]

Thanks for that ... SCIENCE RULES!

The top of the coil not exposed to eliquid logically would be much hotter, and that you measure 225ºC leads me to believe you were running a 50:50 VG PG, (or a greater % of PG?)

60/40 on the Dwarv and 70/30 on the Citadel.

 

[Resistance]

Here is a lekker spanner to throw around...

Ultrasonic Vaping Technology™ ?
Ultrasonic Vaping Technology™ is atomizing e-liquid into vapour by VIBRATION.
Our devices are equipped with a customized ultrasonic vaping chip,
which vibrates at a super-high frequency while working,
hits the surface of e-liquid molecules, makes them magnify, split,
and finally change from liquid to aerosol.

https://www.usonicig.com/technology/

wonder if you can get "spitback" from these?

I was just thinking of this device.
This time you can call it an aerosol,but then again it still vaporises the liquid. It doesn't suspend the eLiquid in something else.
Let's call it a Hybrid.

 

[Stranger]

Thanks @blujeenz

 

[Stranger]

In these early days, Lik’s invention was markedly different to the ones we’re now familiar with. Instead of a heating element, which is now used to heat the e-liquid and produce vapour for the user to inhale, Lik’s initial design made use of a piezoelectric ultrasound element. It was bigger and bulkier than the e-cigarette design vapers have become accustomed to today, but it was a significant start.

“In 2001 I devised a system on a large console, using food additives as solvents,” Lik told French scientific publication Sciences et Avenir in 2013. “At the time I was working on vaporization by ultrasound but the droplets formed were too big to resemble tobacco smoke. This technology is used for example in some household humidifiers; it consists of making a metallic diaphragm vibrate at an ultrasonic frequency in a liquid to create micro-droplets which then, upon contact with room-temperature air, form a sort of cold vapour.”

Read more: Different parts of a vape pen explained.

As the months passed, Lik’s idea was refined, and a smaller, more practical device that used a heating element was patented in China in 2003. In 2004, e-cigarettes hit the market for the first time through the Chinese company Ruyan, which Hon worked for. In 2005, Ruyan started exporting e-cigarettes outside of China, and in 2007 they entered into the US market.

 

[Intuthu Kagesi]

60/40 on the Dwarv and 70/30 on the Citadel.

Interesting ... Whilst it proves the point ... I think the readings could have been a little higher, (even taking into account stacked errors on both the thermocouple and meter), unless that juice has managed to absorb some water?... it is after all hygroscopic.

 

[Intuthu Kagesi]

Just thinking about it ... @Resistance ... Don't you add water to your juice? ... What % do you add to what base mix? ... and ... Is it noticeably cooler as a vape?

 

[Timwis]

So do I!

Those bloody scientists claim that the earth is an oblate spheroid.

Everyone knows that the earth is flat!!!

On the back of a giant turtle!

 

[Dela Rey Steyn]

On the back of a giant turtle!

Held up by four mighty elephants!