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opinions on wick
yes very interesting, i have read that about 9 times... Whats up with that in regards to this thread?- happydave
- Post #111
- Forum: Rebuildable Atomizer Systems
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opinions on wick
both 1 and 2 are valid points. i do not have any other testing material for cotton at this point so i cant say about about number 2. the whole deal here, is that under normal operation conditions. (meaning the temps we run our gear at). myself as well as my esteemed PHD chemist friend STRONGLY...- happydave
- Post #105
- Forum: Rebuildable Atomizer Systems
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opinions on wick
there are 2 types of "vaporization". evaporation and boiling. when you see the "boiling point" of say water. that is the temp that water STARTS to boil at. meaning that some, but not all of it is turning into a gas. evaporation is a process involving the atoms of a compound or elements...- happydave
- Post #104
- Forum: Rebuildable Atomizer Systems
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opinions on wick
i did change the wick out and did manage to get the coil to behave a bit. this is the same 7.3 ohm coil at 4.0 volts... 2.19 watts.- happydave
- Post #100
- Forum: Rebuildable Atomizer Systems
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opinions on wick
this is a 7.3 ohm Micro coil, please forgive the sloppy coil job because i can not get this coil to glow at all and that prevents me from getting it red lot and pushing the coils together... this is 7.3 ohms at 5.0 volts... 3.42 watts! (to be exact) the first number that appears on the mods...- happydave
- Post #99
- Forum: Rebuildable Atomizer Systems
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opinions on wick
you are aware that i responded to another post without quoting it... right? also "heat produced in an average RDA being around 1000F conservatively"... how did you come up with 1000 degrees fahrenheit?- happydave
- Post #97
- Forum: Rebuildable Atomizer Systems
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opinions on wick
"VG would need to be at 0.003157 atmosphere or about 0.04 PSI in order to boil at 65°C (roughly)" notice that i said (roughly) because this is not exact but rather an estimation. this calculator is not exact but it will give you a general idea.. Boiling Point Calculator- happydave
- Post #96
- Forum: Rebuildable Atomizer Systems
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opinions on wick
"An ecig coil doesn't have to heat the entire wick" well i did, to 66.2 degrees Celsius and it still made 0 amounts of vapor... i dont CARE what you do with your e-cig. you could use whatever you want for wick, why your still here giving me questions is BEYOND me. im not trying to cause a...- happydave
- Post #80
- Forum: Rebuildable Atomizer Systems
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opinions on wick
in this video you can actually watch e-liquid boil off and turn into vapor. keep your eyes on the surface of the coil. you can see bubbles form and disappear rapidly as they turn into vapor. this is a 2.3 ohm micro coil at 3.3 volts, 4.7 watts. (you would not really vape a build like this...- happydave
- Post #78
- Forum: Rebuildable Atomizer Systems
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opinions on wick
just in case anyone was wondering what 60 something degrees Celsius does to a silica wick loaded with VG. it made no vapor what so ever. i got the temp to stay under 70 degrees Celsius for a few minutes. and blowing on it only lowered the temperature.- happydave
- Post #77
- Forum: Rebuildable Atomizer Systems
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opinions on wick
this is how science works.... someones says, "i think it works this way" and that is a theory until its proven or disproved. if you suggest a theory and its wrong its nothing to get upset about. because even if your theory is wrong you have helped in the process of elimination, so you or others...- happydave
- Post #76
- Forum: Rebuildable Atomizer Systems
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opinions on wick
so here is how this goes. ..when you hit the power, the e-liquid boils. this sends tiny partials of VG gas into the atmosphere. PG and VG are both hygroscopic (meaning they absorb water). so these tiny little partials pick some water VAPOR and become larger. the larger the partials become the...- happydave
- Post #75
- Forum: Rebuildable Atomizer Systems
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opinions on wick
air pressure? so the boiling point of VG at 1 atmosphere or 14.7 PSI is 290°C according to the FDA the temp inside of the e-cig that they tested was 40 to 65°C lets say for example it was a constant 65°C VG would need to be at 0.003157 atmosphere or about 0.04 PSI in order to boil at 65°C...- happydave
- Post #73
- Forum: Rebuildable Atomizer Systems
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opinions on wick
please explain to me to the best of your ability why VG would not need to reach the boiling point of VG in order to produce vapor.- happydave
- Post #71
- Forum: Rebuildable Atomizer Systems
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opinions on wick
actually humans have known that asbestos is hazardous for almost 2000 years Asbestos - Wikipedia, the free encyclopedia- happydave
- Post #69
- Forum: Rebuildable Atomizer Systems
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opinions on wick
me personally? no. but there is quite a bit already out on the web. Let me google that for you this one looks pretty good http://link.springer.com/article/10.1007/s002040100266 THIS ONE IS GOLD http://www.solvay.com/en/binaries/Synthetic_amorphous_silica_GPS_rev0_sept12_RHD-139563.pdf- happydave
- Post #68
- Forum: Rebuildable Atomizer Systems
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opinions on wick
You can't compare silica fibers to asbestos fibers.- happydave
- Post #65
- Forum: Rebuildable Atomizer Systems
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opinions on wick
i was smoker for 10 years. but that does not mean i totally gave up on my health. vaping is a reduced harm alternative to tobacco. vaping does come with some risks. as doctors start to deal with the adverse health effects of vaping, its going to be important to understand exactly what these...- happydave
- Post #63
- Forum: Rebuildable Atomizer Systems
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opinions on wick
subohm rig is done. twisted 30 awg you can see the twists! dropper top for scale 2 strands of 2 mm silica 4 wraps around the silica strands. 0.8 ohms. the Rig! 18650 mech 17 mL batch going to use 2.5 mL of various dark flavor concentrates Lorann cotton candy 1.0 mL lorann blueberry 1.0...- happydave
- Post #58
- Forum: Rebuildable Atomizer Systems
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opinions on wick
another important consideration is the aluminium oxide layer that forms on the surface of the kanthal wire after its been heated. this layer is brittle and flakes off. i will see if i can get a close up of this layer. through the 30x loop you can see that a wire that has been dry burned is...- happydave
- Post #57
- Forum: Rebuildable Atomizer Systems