All my mods part1

[leprud]

Inductive heating? Well, power loss is not affordable..
However, Raidy told it's 35kHz at 150ms... Well, I doubt it requires less power, than standart kanthal/nicrome wire.

Anyway, that's %%%%%ng incredible

UPDate. I see another problem, with temperature. It heats with small impulses, to high temperatures, so at mesh/liquid point it can exceed 300 celsius..

 

[Dustydragon]

Nice very interesting !!=)

 

[pailpoe]

Good works raidy.

 

[HockerMagnum]

Just finished reading all 1303 posts, took me 3 days.

Who'da thunkit? An e-juice rail/tube gun.

 

[dsy5]

I have no time at the moment, but i show you a atty without wire.
It work with an inductive coil wich heats the mash directly. Give me some more weeks and i make a real usable atty. At the moment i'm working 26h/day on a new invention and have no second for my hobby.

I had the same idea Raidy, and tried to PM you with this a few weeks ago - but you have PM turned off. I did not want to release any of my details if I was correct in my assumptions that it was indeed induction heating..

I have not created a working prototype yet - I'm just doing some design work and it is interesting to note the frequencies you have chosen for the oscillation. I was looking into even higher freqs, perhaps around 1-2 MHz to keep the parts to a minimum size. Anyhow, keep up the good work. If I may ask, what is the inductive value of your coil in the lower picture?

 

[raidy]

Inductive heating is a realy very, very special subject. I depents on a hundret paramters. I used a 400er SS mesh with a steel needle from 1/2mm inside. picture 1 heats from 200kHz up to 1.5Mhz, picture 2 works from 10kHz up to 100kHz. The inductifity of the coil is not so importent, more importent is to get the exact frequency to have a full resonance. When i have free time i will work more on it and post the best values.
BUT THIS IS NOT MY NEW INVENTION ATTY. About my new one is "a sea of silence".

 

[theECB]

I'd like to part that sea and take a peak! Very excited and I wish you productive and fruitful work!

 

[Gummy Bear]

Where's Moses when you need him?

 

[dsy5]

Inductive heating is a realy very, very special subject. I depents on a hundret paramters. I used a 400er SS mesh with a steel needle from 1/2mm inside. picture 1 heats from 200kHz up to 1.5Mhz, picture 2 works from 10kHz up to 100kHz. The inductifity of the coil is not so importent, more importent is to get the exact frequency to have a full resonance. When i have free time i will work more on it and post the best values.
BUT THIS IS NOT MY NEW INVENTION ATTY. About my new one is "a sea of silence".

I must agree that induction heating is a specialty. It is necessary to have a tuned tank circuit to avoid power losses. That is why I inquired about your coil's value. A parallel tuned tank (using a capacitor) at resonant frequency can be calculated from the coil value and capacitor value. I am looking for a frequency which will allow for small component size. I was intrigued by the use of the needle as a secondary - I was thinking the steel mesh would be enough to create the heat - I would guess then that the 'skin effect' on the needle actually helps to heat the mesh. At the moment, I have not wound any coils for testing since I do not have any magnet wire available in a small gage. Perhaps an old wall wort or small transformer lying around may have some that I can use. It appears that the coil in your second photo has quite a few turns to it.

Your 'sea of silence' is fine with me - I'm sure your new invention will be superb. I didn't want to break out the induction idea without your knowledge out of respect for your work. Now that I know this is not your new atty, I will continue do some more work on the induction thing.

 

[FreakyStylie]

I just thought I'd make another post. I've been following along from the beginning . . . more silently though. I'm really enjoying this thread. Thanks so much raidy!

 

[Lee1111]

Is this what EE's do all day? I may be taking the wrong courses in school...

 

[nicotime]

Good work Raidy...this reminds me of the Wizard Stick heating element we played around with a while back.

 

[cracker75]

I just read this entire thread for my second time. Thanks Raidy for all your hard work.

 

[kinabaloo]

Good to see touch sensors and power FETs, PWM and temperture control via predefined power-time relationships in vogue as i also pushed these some time ago.

The whole vaporisation paradigm is probably best avoided - why vaporise the liquid to have it recondense (with VG degradation and deposit build up from flavorings and other additives) when there are ways to produce the mist without heating, or at least without vaporisation. Ultrasonic misting and the bubble jet alternative (alternative to ink jet, as in ink jet printers) offer an efficient methodology that would avoid the ptfalls of vaporising the liquid (even though these are far smaller than combustion).

As I have mentioned before, something like an inkjet technology offers the possibility of dial-up flavors, changed almost instantly, though would require a multi-chamber e-liquid store (rather like how colors are mixed from CMYK). This could be blended with steam or heated PG for throat-hit/flash.

 

[raidy]

Good to see touch sensors and power FETs, PWM and temperture control via predefined power-time relationships in vogue as i also pushed these some time ago.

The whole vaporisation paradigm is probably best avoided - why vaporise the liquid to have it recondense (with VG degradation and deposit build up from flavorings and other additives) when there are ways to produce the mist without heating, or at least without vaporisation. Ultrasonic misting and the bubble jet alternative (alternative to ink jet, as in ink jet printers) offer an efficient methodology that would avoid the ptfalls of vaporising the liquid (even though these are far smaller than combustion).

As I have mentioned before, something like an inkjet technology offers the possibility of dial-up flavors, changed almost instantly, though would require a multi-chamber e-liquid store (rather like how colors are mixed from CMYK). This could be blended with steam or heated PG for throat-hit/flash.

Often discussed before, but who can make this piezzo-atty? A normal worker can't make that, only a specialized industry company can do. And if it's realy working, i don't belive to much. Because the ultrasonic vapouring works with water as medium, PP and PG has a compete other structure. And last but not least - you need warm vapour. My test with a 20Watt ultrasonic element was unsuccsessfull.

 

[pailpoe]

Hello Raidy,

I have try ultrasonic with no success (frequency ?, density,...) . In my opinion, this solution is too complicate for the result expected.

 

[raidy]

sorry, most of text translated by google
As you know, I've just other things "around the ears" and let the development work grind something. But here and there comes over me but then again an idea that I need to try right now. This plagued me here tonight and already evaporated.

The hot air atty

The picture says it all.

Idea copyright by Raidy 1 / 2011
Luft=Air, Heizung=Heater, Sieb=screen, Dampf=vapor - or learn german

In a glass tube is located (right) a air heater, which heats the air considerably. In the middle is a stainless steel sieve impregnated with a little liquid.
Function:
If you turn on the heater, and (left) inhale , then the heated air is sucked through the liquid-mesh. This leads to an immediate evaporation of liquids.

Looks simple, is simple, but works good
Benefits of the evaporator:
1) No more Kanthal wire at the mesh. Kanthal always remains clean and should have an eternal life.
2) No extreme temperatures on the screen, which ensures it can never come to a "Burning". As long as liquid is in the screen, the max. temperature should not exceed the boiling point of the liquids.

Of course this is only a prototype V0.0001
The vapor tastes very clean and was not too bad for now.
He came to me compared to genisis rather steamy steps flashy. But it was only a prottype .
So much about this crazy idea. More time I did not grad.

What do you mean it about?

EDIT: This system could be even the tiniest building evaporator with temperature control.

 

[asdaq]

Looks interesting, do you have a second tube inside the 1st to wet the mesh? Or perpendicular? I like the rice cooker principle of not reaching past the boiling point, maybe a temp sensor to shut off when the temp goes higher than the boiling point? Or activate pump to feed more juice

edit: This would look grand in a steampunk setup, glowing coil supplying the light.

 

[l3oertjie]

This would look grand in a steampunk setup, glowing coil supplying the light.

.... Asdaq!!!! lol

 

[l3oertjie]

Raidy, I have lost faith (maybe prematurely) in the stainless steel wick since I get no "flash" with this setup.... I have used many different mesh types from #200 to #500. None seems to deliver that much sought after throat hit we are all after? Any suggestions?