Results 1 to 4 of 4
Like Tree3Likes
  • 2 Post By Snidely_Whiplash
  • 1 Post By Fractal

Thread: Stainless Steel & Variable Voltage

  1. #1
    AVF Regular
    Join Date
    Aug 2014
    Location
    Sydney (or lurking in the shadows behind you)
    Posts
    2,165

    Stainless Steel & Variable Voltage

    If you hit a SS coil with a set voltage,
    the resistance starts at it's lowest,
    & climbs as you heat up the coil.

    Conversely the wattage falls as the resistance rises.

    So if you find the voltage you like to use this coil at when it's warm,
    the next time you pick it up after the coil has cooled,
    do you get a effective boost?

    Score:
    one for VV & zip for VW perhaps?
    Last edited by Snidely_Whiplash; 21-06-17 at 10:03 PM.
    studiovape and steve.c like this.
    .

    I Do Whatever I Want,
    Whenever I Want,
    And If It Doesn't Suit You,
    Go Start Your Own Empire
    .
    Anything I write on AVF is purely my opinion and should never be read as fact!
    (or I could just be wrong)
    Please read the AVF rules: http://forums.aussievapers.com/forum...ions-bans.html
    (or wait for Johnny Depp to do the movie)

  2. #2
    AVF Regular
    Join Date
    Aug 2013
    Location
    Central Coast, NSW
    Posts
    934
    I don't know if the effective wattage falling would really be that noticeable in the real world on a VV mod - the resistance increase on SS (316L in particular) is only very, very slight when it's heated.

    Given that a VV mod isn't actually using the measured resistance to automatically adjust it's output in any way - I think the end result would be much like vaping SS on a mech or DC/DC converter mod (like a Hexohm). Theoretically the resistance is fluctuating and a cold coil would theoretically hit a bit harder in the instant before it heats up - but since it's only very slight and very fast, it's not really that noticeable in the vape (much like the minor resistance fluctuations when using Kanthal with a "TC unstable" atty, really).

    The idea though is not completely out of left field!

    I have noticed that on some mods (namely ones that are good at detecting very tiny resistance changes, and continually update the resistance outside TC modes - like DNA boards) the resistance changes when heating SS when combined with an unstable atty and a half-arsed build can be enough to throw off proper VW calculation, and give you an inconsistent vape.
    steve.c likes this.
    These things.

    I have some things.
    I vape them.

  3. #3
    AVF Regular
    Join Date
    Sep 2013
    Location
    Sydney
    Posts
    4,042
    Quote Originally Posted by Fractal View Post
    I don't know if the effective wattage falling would really be that noticeable in the real world on a VV mod - the resistance increase on SS (316L in particular) is only very, very slight when it's heated.

    Given that a VV mod isn't actually using the measured resistance to automatically adjust it's output in any way - I think the end result would be much like vaping SS on a mech or DC/DC converter mod (like a Hexohm). Theoretically the resistance is fluctuating and a cold coil would theoretically hit a bit harder in the instant before it heats up - but since it's only very slight and very fast, it's not really that noticeable in the vape (much like the minor resistance fluctuations when using Kanthal with a "TC unstable" atty, really).

    The idea though is not completely out of left field!

    I have noticed that on some mods (namely ones that are good at detecting very tiny resistance changes, and continually update the resistance outside TC modes - like DNA boards) the resistance changes when heating SS when combined with an unstable atty and a half-arsed build can be enough to throw off proper VW calculation, and give you an inconsistent vape.
    Well said fractal😎👍👍

  4. #4
    AVF Regular
    Join Date
    Aug 2012
    Location
    Gympie Queensland
    Posts
    2,361
    Quote Originally Posted by Snidely_Whiplash View Post
    If you hit a SS coil with a set voltage,
    the resistance starts at it's lowest,
    & climbs as you heat up the coil.

    Conversely the wattage falls as the resistance rises.

    So if you find the voltage you like to use this coil at when it's warm,
    the next time you pick it up after the coil has cooled,
    do you get a effective boost?

    Score:
    one for VV & zip for VW perhaps?
    It does have a slightly useful effect on a mosfet mech however
    Vaping since July 2012.

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin® Version 4.2.4
Copyright © 2017 vBulletin Solutions, Inc. All rights reserved.
Search Engine Friendly URLs by vBSEO 3.6.0
All times are GMT +11. The time now is 11:51 AM.