Vacuum?
- Thread starter Alien Traveler
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If so, vacuum in a burner should suck alcohol back to it, not to supply fuel for fire.
Heat rises.
Creating a very subtle vacuum.
Tapatyped
Vacuum has nothing to do with the fuel traveling thru a wick to the flame. Moving air causes low pressure which draws e-liquid into the atomizer. Even though there is low pressure inside the coil the tank is not air tight and does now create a vacuum. There might be a very slight lower pressure in the tank due to the e-Lqiud leaving the tank but that is immediately returned to atmospheric pressure because the tank is not air tight.
Now we could debate if there is the possibility of getting vapor lock like in a carburetor aspirated engine.
Now we could debate if there is the possibility of getting vapor lock like in a carburetor aspirated engine.
Except the wick doesnt create an air tight seal.
Otherwise my son's sippy cups wouldn't allow liquid out either hole.
Tapatyped
Sippy cups have air holes to allow air in when liquid is removed. At least from what I remember how they were constructed.
You hear the air rushing into it during and for a split second after sucking on it.
The vacuum isn't sustained. It's not a completely closed, air tight system.
Tapatyped
It depends on wicking. Some people does not bother to close juice control.
Yes, I am "plugging" holes. No dry burns, no leaking. And it is the best wicking for my style of vaping. I do not suboohm. But quite often I do DL draws for 10 seconds (until shut off time). Still no dry burns.
But I do agree that a bit of lower pressure can help with leaking.
Lower air pressure and moving air are not a vacuum. Vacuum is not achieved only lower pressure for milliseconds.
Exactly.
So, no vacuum for alcohol burner, only capillary action, and a very good one.
Exactly my point to AT.
So does his oil burner by design. The space between the wick and the glass rim.
Which I guess is moot since we're arguing semantics between the terms vacuum and negative pressure.
Though my point I guess is a less clinical version of the word vacuum. In that the negative pressure creates a suction - or a vacuum if you will - not necessarily a locked negative pressure or an absence of gasses "scientifically correct vacuum".
Tapatyped
The air you hear moving is suction and it is not creating a vacuum but at the e-Liquid ports it is creating LOWER Pressure. That is what is moving the e-Liquid.
The fuel travels up the wick because of capillary action and the fuel is being burned off so the wick provides more fuel. An Atomizer coil works more like a carburetor does with lower air pressure caused by moving air drawing in fuel or e-Liquid.
I'll leave these here...
an enclosed space from which matter, especially air, has been partially removed so that the matter or gas remaining in the space exerts less pressure than the atmosphere (opposed to plenum ).
(of a hollow container) partly exhausted of gas or air.
the definition of vacuum
We're arguing different definitions.
I sincerely apologize for maliciously using the term negative pressure when I clearly meant lower pressure. [emoji14]
Tapatyped
an enclosed space from which matter, especially air, has been partially removed so that the matter or gas remaining in the space exerts less pressure than the atmosphere (opposed to plenum ).
(of a hollow container) partly exhausted of gas or air.
the definition of vacuum
We're arguing different definitions.
I sincerely apologize for maliciously using the term negative pressure when I clearly meant lower pressure. [emoji14]
Tapatyped
Once the lower air pressure is gone atmospheric pressure balances again. A tank or atomizer is not air tight and cannot create a vacuum. What happens when you stop inhaling? Pressures equalize.
For the record, when my son sucks on a sippy cup, he most certainly is exerting negative pressure on the vessel.
The fact that it's an open ended container that never reaches negative pressure is an entirely different subject.
Tapatyped
The air you hear when you are inhaling is the pressure equalizing and although it does have a negative pressure momentarily it is not a vacuum.
The unfortunate part here is our language does not adhere to strict, clinical, singular definitions of long used words.
Which translates to both sides can be right while saying nearly polar opposites in text form.
But the fact remains, with some tanks, without a pressure differential forcing liquid to the wick, conventional wicking would never keep up well enough for most vapers regardless of wicking material.
And with many of those tanks, even environmental variables can wreak havoc making it very clear that conventional wicking is neither the end all, be all, nor the greater of the forces at play.
Tapatyped
Which translates to both sides can be right while saying nearly polar opposites in text form.
But the fact remains, with some tanks, without a pressure differential forcing liquid to the wick, conventional wicking would never keep up well enough for most vapers regardless of wicking material.
And with many of those tanks, even environmental variables can wreak havoc making it very clear that conventional wicking is neither the end all, be all, nor the greater of the forces at play.
Tapatyped
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