Well, after playing around with SE, I have some ideas. Thanks for that information,
@gimmelapdance. I just needed something that performs competently as a reference.
Not having much luck finding something quite like that it at 8.4v. Claptons are probably going to be necessary to get the mass and heat aligned. They help a lot when all coils generate 4 times the power. No matter how thin the wire or how high you build to make up for that, the balance is still just as far off.
I'm having trouble keeping a coil with enough mass-to-power under 10 wraps and 3mm, which I assume are reasonable max dimensions. Honestly, I'm just trying to picture some builds next to the one in that sweet spot and extrapolate something with comparable objective characteristics from it.
Right... ...so the benchmark will be a 1-ohm 28g coil firing at 3.2v which generates 10w. I'm assuming that
@LarryPer123 is running something pretty similar. Heat flux is 178 mW/mm². Capacity is 14.77 mJ/K. Very small, fast, and cool build.
First up is a twisted 34g clapton with a 38g or 36g outer. 8 full wraps @ 3mm calculates to roughly 3.3 ohms, delivering ~19w on the cricket. Heat flux is 206 mW/mm². Total heat capacity of the core is 12.06 mJ/K. The core itself will thus heat up a little quicker due to the slightly lower mass and greater heat energy, but once claptoned, the balance should be closer to the benchmark.
You could also do a single-core 30g clapton. 9 full wraps @ 3mm calculates to 3.1 ohms, delivering ~20w. Flux is a significantly higher 230 mW/mm², but the capacity goes up to 18.11 mJ/K... ...highest mass of the bunch, so the temperature will not necessarily be much higher in spite of the extra heat energy, especially when claptoned with 38g or 40g - the outer wrap should sufficiently spread-out the excess heat. The only problem is that this one might be a little too big.
Just a thought... ...maybe it would be better to capitalize on as much airflow and space around the coil as possible, perhaps by raising the coil or mounting vertically. The coils I've come up with should innately produce more flavor and vapor, but they also produce a bit more power and heat relative to their (larger) size. They could probably use less restricted airflow and extra space more than they could a heat/texture/flavor boost.
But I digress... ...kayfun coil positioning is beyond my experience. I just wonder if raising the coil or mounting vertically might be the way to go, here.
Also to consider here is that claptons have more efficient cooling because of how juice behaves around them. They will not heat-up as readily as a bare coil of the same mass with the same amount of heat energy traveling through it. They almost plateau sometimes. The 3mm diameter will also aid in juice distribution and heat dispersion. The math can't predict how things like this will impact performance, though. Just gotta pray on it.
So that positioning thing could go either way. *shrugs*
Shots in the dark from someone who exclusively uses RDA's at high wattage, of course. Whether or not they're
good builds, I have no idea, but I'm fairly sure they will at least work. Probably better to just use the dummy-cell.
EDIT: Forgot the kayfun uses full wraps, so the numbers will be slightly skewed. Shouldn't make a huge difference. It's all relative calculations anyway, so the comparisons should still stand.