1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

spark without battries

Discussion in 'Electronic Projects' started by ardnat, Nov 29, 2004.

Thread Status:
Not open for further replies.
  1. audioguru

    audioguru Well-Known Member Most Helpful Member

    Joined:
    Mar 16, 2004
    Messages:
    32,445
    Likes:
    937
    Location:
    Canada, of course!
    ONLINE
    Maybe in your country they use methane gas in lighters. It stinks too.
    I wonder which animal produced it. :lol:
     
  2. panic mode

    panic mode Well-Known Member

    Joined:
    Nov 8, 2003
    Messages:
    1,637
    Likes:
    38
    Location:
    mississauga
    propane doesn't have smell and so it's not detectable. this can be very dangerous. this is why the parfume is mixed with it (just to give it smell).
    and since it has to be cheap, it doesn't smell too nice :lol: :lol: :lol:
     
  3. audioguru

    audioguru Well-Known Member Most Helpful Member

    Joined:
    Mar 16, 2004
    Messages:
    32,445
    Likes:
    937
    Location:
    Canada, of course!
    ONLINE
    Luckily there aren't many diesel cars here. I wonder which chemical they add to diesel fuel to make it stink!
    They are putting corn alcohol in gasoline now to make it smell better. :wink:

    I think the butane gas in lighters is propane without the stinking stuff. :lol:
     
  4. dave

    Dave New Member

    Joined:
    Jan 12, 1997
    Messages:
    -
    Likes:
    0


     
  5. Karaethon

    Karaethon New Member

    Joined:
    Jan 21, 2006
    Messages:
    35
    Likes:
    0

    I dont know about the rest of the world but in the US they use Butane in lighters, butane is not propane, they are different gasses.

    Butane is CH3CH2CH2CH3
    Propane is CH3CH2CH3 or C3H8


    Butane: also called n-butane, is the unbranched alkane with four carbon atoms, CH3CH2CH2CH3. Butane is also used as a collective term for n-butane together with its only other isomer, iso-butane (also called i-butane, isobutane, or 2-methylpropane), CH3CH(CH3)2.

    Propane: a hydrocarbon fuel gas with the formula C3H8 that is used primarily as a bottled gas for heating and cooking. Being heavier than air, if propane is in a buried pipeline, it will require a separate pump to bring a sample into a gas detector's sensor chamber.

    About the Smell of Propane:
    By nature, propane is clear and contains no scent at all. For safety purposes propane companies add a substance known as ethyl mercaptan to the propane fuel. Ethyl mercaptan has a strong rotten egg, or skunk-like scent, which allows the consumer to smell it in the case of a leak. If you smell something similar near your appliances and your tank it is ALSO possible that you are low on fuel. Ethyl mercaptan is heavier than propane and sinks to the bottom of the tank so when the tank is low on fuel the ethyl mercaptan odorant will become even more noticeable.


    I couldnt find anything about Butane's smell.
    LINKS:
    About Butane
    About Propane




    Oh, and Finally, Desel Fuel (at least as far as I know) does not have any additives to make it smell so wonderful, and yes I mean wonderful( I love tractor trailer trucks, lol) Although here in the US they do add a red dye to it to sell it as heating oil.
     
  6. audioguru

    audioguru Well-Known Member Most Helpful Member

    Joined:
    Mar 16, 2004
    Messages:
    32,445
    Likes:
    937
    Location:
    Canada, of course!
    ONLINE
    Diesel fuel smells so wonderful that when you are behind a school bus and it zooms forward, the black cloud can also be tasted. Yummy!
     
  7. Karaethon

    Karaethon New Member

    Joined:
    Jan 21, 2006
    Messages:
    35
    Likes:
    0
    mmmm I love it. diesel rocks.
     
  8. Someone Electro

    Someone Electro New Member

    Joined:
    Sep 10, 2003
    Messages:
    2,579
    Likes:
    2
    Location:
    A boring village in Europe (slovene)
    Diesel stinks if you ask me.But i like the smell of petrol.Thats the only good thing about mowling the lawn.You get a nice smell of it when refiling the mowler.
     
  9. audioguru

    audioguru Well-Known Member Most Helpful Member

    Joined:
    Mar 16, 2004
    Messages:
    32,445
    Likes:
    937
    Location:
    Canada, of course!
    ONLINE
    Have you smelled the nice scent of grain alcohol (ethanol) in modern petrol?
     
  10. moody07747

    moody07747 Member

    Joined:
    May 16, 2005
    Messages:
    546
    Likes:
    0
    Location:
    NJ
    here, butane has a smell to it...not like sulfur though...i still hate it...filling my torches and all....

    but those little sparkers will light steel wool easily
     
  11. audioguru

    audioguru Well-Known Member Most Helpful Member

    Joined:
    Mar 16, 2004
    Messages:
    32,445
    Likes:
    937
    Location:
    Canada, of course!
    ONLINE
    What is the nice scent from a flint spark? Ozone?
     
  12. Someone Electro

    Someone Electro New Member

    Joined:
    Sep 10, 2003
    Messages:
    2,579
    Likes:
    2
    Location:
    A boring village in Europe (slovene)
    Its probobly metal in the air.

    I know that ozone smells much fresher.
     
  13. Peepsalot

    Peepsalot New Member

    Joined:
    Mar 15, 2006
    Messages:
    52
    Likes:
    0
    Location:
    Austin TX
    If you want a little bit more substantial spark, you can use a barbecue grill ignitor. You can buy replacements from a hardware store usually, or get one online. Should be around $5 or so. The sparks can be about 1 inch long if I remember correctly, and are good for making potato cannons.

    They all look about the same: long plastic housing, red button with black bezel. It uses the same piezo technology in a butane lighter, only on a bigger scale, and the force required to press the button is a bit more.

    Attached is a pic example.
     

    Attached Files:

  14. razielworthy

    razielworthy New Member

    Joined:
    Mar 27, 2006
    Messages:
    2
    Likes:
    0
    rude school

    That's so rude from the kids, you shall teach them not to heart each other.
     
  15. moody07747

    moody07747 Member

    Joined:
    May 16, 2005
    Messages:
    546
    Likes:
    0
    Location:
    NJ
    lol i find that one funny...these little sparkers are harmless....not nearly anything deadly in them
     
  16. Someone Electro

    Someone Electro New Member

    Joined:
    Sep 10, 2003
    Messages:
    2,579
    Likes:
    2
    Location:
    A boring village in Europe (slovene)
    Unles your in a room full of gasoline vapor.
     
  17. audioguru

    audioguru Well-Known Member Most Helpful Member

    Joined:
    Mar 16, 2004
    Messages:
    32,445
    Likes:
    937
    Location:
    Canada, of course!
    ONLINE
    :lol: :lol: Kaboom!
    Actually, nothing happens unless the air to gasoline ratio is about 14.5. If the mixture is too rich or is too lean then it won't burn.
     
  18. Peepsalot

    Peepsalot New Member

    Joined:
    Mar 15, 2006
    Messages:
    52
    Likes:
    0
    Location:
    Austin TX
    stoichiometric ratio for air to gasoline is actually 14.7 :wink:

    But yeah, 14.5 is definitely close enough. :D
     
  19. Hero999

    Hero999 Banned

    Joined:
    Apr 6, 2006
    Messages:
    14,902
    Likes:
    79
    Location:
    England
    How your piezo works:
    [​IMG]

    On the right there's a piece of piexo crystal connected to the electrodes.

    On the left there's a spring with a pin and a catch mechinism attached to the button.

    When you push the button the spring compresses first, then when it's fully depressed the catch releases firing the pin at the piezo crystal and all the mechanical energy is converted into a pulse of electrical energy powerfull enough to ignite gas and even kill some insects but too small to harm you.
     
  20. Someone Electro

    Someone Electro New Member

    Joined:
    Sep 10, 2003
    Messages:
    2,579
    Likes:
    2
    Location:
    A boring village in Europe (slovene)
    Killl a instect? Never tryed that.
     
  21. ardnat

    ardnat New Member

    Joined:
    Nov 29, 2004
    Messages:
    11
    Likes:
    0
    lol! Its been about 3 years since i last loged on! WOW! Well im glad to be back!
     
Thread Status:
Not open for further replies.

Share This Page