OF
Well-Known Member
So you were serious, in your logic is it normal that in a ´conduction' vape a loose load gives you faster vapor than a normal load? If it is I apologize for the kidding - trolling accusation, seriously.
What I said was that @vapman proves by a fact, empirically, that VM is radiation.
I give you an other example: if it was a conduction vape why a tight load is worst extracted than a loose one or a normal one? IMO It is because in a tight load material is so compressed in the bowl that make shadows for radiation not allowing it to heat all over the load.
Apology accepted.
No, sorry, it doesn't prove that at all. In fact the maker agrees, radiation is not a significant way of heating in this case. NO RADIATION HEATING POSSIBLE. Either empirically (since the observation is incorrect) nor by traditional Thermodynamics theory. Radiation depends on a large temperature difference, always has, always will. The surface areas, emissivity and distance are the other major factors. But by definition when the temperature difference is zero (as when the load and pan are at the same, say 'resting', temperature) calories transferred either way by radiation is zero. Them's the rules.
It is conduction and a heavy pack gives more mass to heat and since conduction is also drawing heat from the heated material in contact with the hot metal this slows the timeline down, more total heat has to go in before vapor happens in the hottest places. Again, please consider the original topic was 'how do you get vapor very fast'. Faster than normal. As I said before. It has nothing to do with shadows, there's no 'light' (UV) to make shadows. That takes a lot more heat. As Rene said? You can have whatever opinion you want but post it here as fact and I think you should expect that to be challenged, IMO you should be ready to defend it. I think the goal here at FC should be accurate, reliable, and useful information.
Again, consider the MFLB case. While radiation helps early on in the cycle when the screen is very hot and the load cold, once things warm up it's conduction that does the work. Only herb contacting the screen 'works'. In cooking terms MFLB is fry pan, VM is a Dutch Oven?
I'm just repeating the stuff you deleted from my post you took exception to:
http://fuckcombustion.com/threads/vapman.94/page-200#post-892863
so I might be using the wrong terms and examples to get my point across. Let's try a different tact:
The goal is fastest possible vapor. Lower mass and dryer load make that happen faster given the same heat input which comes in by conduction as the metal heats up. Cutting the mass needing to be heated in half nearly cuts the time in half since the rate of heat entering the load is the same. A pot of water boils faster on the stove if there's less water in it, right? It takes one calorie to raise one gram of water one degree C, it takes two to heat two grams one degree. 3 for 3 grams and so on. The entire pot has to get to 100C (grams to be heated times number of degrees rise (100 minus the starting temperature) in calories) before boiling starts. If it needs more heat, it'll take more time.
Make sense?
OF