let's say 2 devices set at 30 watts .....

[flexsr]

Let's say one of the devices has a single coil 1.2 oh build .
device 2 has let's say a .5 ohm build in it.

You set hour app to 30 watts on both devices and each applies different voltages to achieve this 30 watt of power.

However, my question mor to do with practicality. What if any differences will you notice vaping wise ? From my experience they clearly don't vape the same which could have a lot to do with slight difference in airflow as well as difference in wick and the wetness of the wick and the list goes on. But if somehow could take those factors into account how would these vape ? The exact same ? I tend to think not but I don't know the reasons why.

Can someone give me your input or help me devise a better question to ask.

Many thanks.


Sent from my iPad using Tapatalk

 

[silenuz]

I believe you could get pretty close to the same experience, there's just SO many other variables aside from the 30 watts and the ohms.

For instance, just messing around with the 1.2 build. Using 26g kanthal to hit that mark you would wrap around 8-9 times on a 3mm ID and have a decent ramp-up with 221 mW/mm2 (steam-engine) which is a decent temp heat flux from my experience and what steam engine says.
The same ohms with 28g kanthal is 7-8 wraps on 2mm and more than doubles your heat flux on 30 watts, at 444 mW/mm2, which would be a pretty hot and dry vape, if not starting to burn juice.
30g kanthal doubles that again and would probably be near unvapeable IMO.

So in other words, I don't think there's a good answer to your question, other than there's a lot more involved than just watts and ohms.

 

[MattyTny]

The vape quality of two different resistances at the same wattage really depends on how you got to that resistance. The wire used and how the coil is made all plays into vape quality. Different gauges wrapped differently will act differently.

One this is certain and that is how the Ohm's law formula is applied. Take your example resistances of 1.2 and 0.5. Given the same voltage the lower resistance will pull more current(amps) from the battery and will drain the life quicker.

You pointed out wattage in your example and there's something to be said about wattage. Wattage is the end result of the resistance at a particular voltage. When you think about your device, look at it in terms of the resistance and voltage being applied to get that wattage. As you said, different resistances require different voltage to get the same wattage. That's why variable wattage devices are so popular. You can get a high wattage with a higher resistance coil by using more voltage and not draw as much current.

I have a feeling state o flux will post some good info for you soon.

 

[Bunnykiller]

you have 2 cars ( identical) and you run them both on the hiway at 60mph but one is in 2nd gear and the other in 3rd..... they both go 60 mph but the one in second gear will run out of gas sooner

 

[93gc40]

Well you found out that ohms wattage and volts don't determine Vape quality.. They are measurements of what does.
Play around on this site, you might learn some things, Steam Engine | free vaping calculators also look at some blogs by members StateOflux and Baditude and others

 

[SissySpike]

as it relates to Vape the low resistance .5 will take longer to heat up has more surface area and will make more vapor and flavor if proper air and juice are supplied.

So while you burned both coils at 30 watts if you gave them the same amount of juice and air the 1.2 ohm coil would be flooded and wimpy vapor producing with the same air and juice the .5 ohm coil works nice at
the .5 ohm coil would burn the wicks and dry hit with the same juice and air the 1.2 ohm coil works well at.


So really the only thing that is the same is the 30 watts all other variables Voltage, air flow, amount of juice. have to be different to to get satisfactory vapor from each resistance coil.

 

[flexsr]

Some of you pointed out the amperage and battery drain. That I really kinda knew before hand but great point for anyone else reading this thread.

I was more curious with the vape experience. I realize other factors do play into it like diameter and gauge of coil but was wondering if there were some overall main differences between coils vaped at the same wattage with different resistances as someone pointed out. But point well taken in that I guess that really can't be answered without knowing the amount of wraps and diameters to achieve said resistances. .

I have played around on the site in the past and that is an excellent website.

I will look for posts from the two screen names you mentioned. Baditude I recognize and has some excellent insights.

I do need to study heat flux etc as I am a completely ignorant when comes to that.

Thanks for listening and for the points everyone made.


Sent from my iPad using Tapatalk

 

[WonderDude32]

You may have discovered the answer by now but I'll post anyway. Heat in the coil will remain from a previous firing. Once the coil has been heated, the ohms reading will be lower with a following vape. This is due to the amount of energy required to reach the desired maximum. If you want to run 100 yards but stop at 50 and rest, the remaining 50 yards won't be as taxing as it would have been to run the entire distance from a dead stop.