Leg length and terminal connections

[derogg]

In building a chimney coil for a kayfun one leg of the coil is longer then the other. Does it matter which leg is connected to the positive or negative terminals? I have read that the shorter leg should go to the negative and I have read the longer leg should go to the positive. Does it matter and why? What is your experience? Thanks
- Dirk

 

[State O' Flux]

As the coil is directly above the positive block for the purpose of quality air flow, the "top" leg - which will always be the longer of the two legs - goes to the negative post.

Unless you make a negative post extension to eliminate the long leg.

 

[derogg]

Thanks for your reply. Why couldn't you flip that around(assuming you are not using an extention) and attach the long leg (top leg) to the positive? Your coil will still be centered over the air flow. I'm not arguing, just trying to figure out if there is some type of reason for doing one way or the other.
- Dirk

 

[State O' Flux]

Thanks for your reply. Why couldn't you flip that around(assuming you are not using an extention) and attach the long leg (top leg) to the positive? Your coil will still be centered over the air flow. I'm not arguing, just trying to figure out if there is some type of reason for doing one way or the other.
- Dirk

Although not a big deal if you keep the coil spaced above the block... there is a logic to it. There are some who like to "seat" the coil on the block - sort of extending the air screw with the coil... so that method of connection would be impossible without producing a dead short.

 

[derogg]

So if I understand you correctly, you have the coil sitting on the block? No gap? If that is the case I see your point. My question was from a purely academic stand point of wondering if there was any advantage of having the electricity flow through the coil one way or another. Thank you.

 

[State O' Flux]

So if I understand you correctly, you have the coil sitting on the block? No gap? If that is the case I see your point. My question was from a purely academic stand point of wondering if there was any advantage of having the electricity flow through the coil one way or another. Thank you.

To answer your last question first... in this low tech application, the electrons are not particular about direction. ;-)

Yes. Unlike a horizontal coil where you might have a gap of 1.5~2.5mm between coil and deck, with a vertical coil "on the deck" - using cotton or hemp fiber as the wick medium, in a "blanket" surrounding (and in contact with) the coil and extending down to the juice decks - you have air flowing only up the center of the coil.

To have a gap would offer no added benefit, because there is wicking medium blocking the air path - inversely, having the coil on the deck concentrates air flow, and one would presume... increases vapor transfer and intensity.

 

[derogg]

Thank you Sir. I appreciate your knowledge. Learn something new everyday
- Dirk

 

[State O' Flux]

Thank you Sir. I appreciate your knowledge. Learn something new everyday
- Dirk

No problemo. Information is meet to be shared.

~ You may find my "Big List O' Links" beneficial.