Hi voltage without (hopefully) the meltdown

[EldarKinSlayer]

Actually it is the power (volts times amps). So a more powerful atty will have a lower resistance; the resistance determines how much current will flow for a given voltage.

Of course, there is still a limitation. Half the length of a standard coil will have half the resistance and twice the current will flow; but it will get too hot and burn out.

A thicker nichrome wire would handle more power ok but it would have both a greater heat capacity in itself and a greater surface area for heat transfer (loss); hence more power would be required to reach the same temperature than a simple scaling of resistance would suggest (it is not a linear relationship). But using a slightly bigger diameter wire with a slightly lower resistance could be a good idea; so long as the battery can put out sufficient current.

A better battery is better because it has a low internal resistance - can give more current; in other words the voltage is less divided between the atty and itself (less voltage drop).

Fuses are rated in amps because mains voltage is a constant.

So 4 volts 1.5 amps would give the same performance as a 6v 1 amp device.

 

[Laredo7mm]

So 4 volts 1.5 amps would give the same performance as a 6v 1 amp device.

Yes, that is correct. The 4V would need a 2.67 ohm resistance to draw the 1.5A and the 6V would need a 6 ohm resistance to draw 1A. Both would produce 6 watts of power.

 

[kinabaloo]

So 4 volts 1.5 amps would give the same performance as a 6v 1 amp device.

The power-in is 6w in each case.

The 4v one resistance would be about 2.7 ohms and the 6v one 6 ohms.

The 'performance' though does depend on various factors re heat transfer, and heat-up time etc. This depends on the wire length and thickness (resistance per inch and the material's heat capacity). In other words, how efficient it is and how fast it is in raising it's temperature; what is best in terms of physical sizes and layout, wicking etc., depending on factors like air flow, juice flow etc. As I mentioned earlier.

 

[kinabaloo]

Take the same atty and raise the voltage from 4v to 6v and the power-in will be 50% greater. This probably will not translate to 50% more vapor because the juice flow will not have been changed (though there is a little room for more of what is available being vaporised). The extra power will heat the airflow (a good thing) but also the casing (not so good) and itself (which could mean burnout).

Hence temperature controlled power would be the ideal.

The problem with increasing the power-in by much is that the juice flow in current attys is insufficient and cannot easily be boosted.

But two parallel attys would allow a doubling of both power-in and the juice flow

Now ... how to double the juice flow in a single atty tube .....

 

[EldarKinSlayer]

I use two PV's a 901 and a BSE 112. Really like the texture of the 901 vapor nice heat and great throat hit. Love the ease of draw and VOLUME of vapor off the 112. want some way to get both at once.