 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
notsew_evets(at)frontiern
Guest
|
 Posted: Wed Dec 31, 2008 9:36 am Post subject: Fuel lines and fuel pump |
 |
|
Again this year just as last and the years before: There are faux experts on these websites.
Some dont know...
Some dont even fly aircraft. They come on these sites because of the "wana be" syndrome.
Read everything and divide by two....
S.
[quote] ---
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
 |
Flydog1966(at)aol.com
Guest
|
| Posted: Wed Dec 31, 2008 9:54 am Post subject: Fuel lines and fuel pump |
|
|
In a message dated 12/31/2008 12:38:36 A.M. Eastern Standard Time, hills(at)sunflower.com writes:
| Quote: | | Electrical power from a 12 volt aircraft system is protected by a fuse, for wing tanks pumps, it is typically 5 amps. If the fuel pump hot wire was to ground, a tiny and cool spark would result, and be gone in about 50 msec as the fuse blows from the overload (assuming you have installed the correct fuses for your pump). It’s a bit complicated, but basically the number of electrons that can jump through the air with 12 Volts source applied simply don’t have enough energy (I.E. heat) associated with them to ignite gasoline |
I'm not saying it will, or will not ignite, but all this talk has given me the urge to set up a test experiment to see for myself. I'll let you know the results ifin I dont git kilt.
Flydog at
Mythbusters Lab
New year...new news. Be the first to know what is making headlines.
[quote][b]
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
Afterfxllc(at)aol.com
Guest
|
| Posted: Wed Dec 31, 2008 10:00 am Post subject: Fuel lines and fuel pump |
|
|
I was looking on u tube but I was thinking the same thing but the fact we are both worried about getting kilt should tell us both something huh.....LOL This is one of those hey ya'll watch this.... I can top that moments.
Jeff
New year...new news. Be thelcom00000026">headlines.
[quote][b]
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
paulrod36(at)msn.com
Guest
|
| Posted: Wed Dec 31, 2008 10:52 am Post subject: Fuel lines and fuel pump |
|
|
<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]--> OK, Roger, I believe you, but if it's OK with you, I'll just stand over there. Way over there. I've also been told that a lit cigarette just in your fingers, isn't actually hot enough to ignite gasoline fumes. But for religious reasons (I am a high priest of devout cowardice) I'd like to avoid any juxtaposition of thermal energy and flammables. "I would rather be safe a hundred times than die once."-------Mark Twain
Paul Rodriguez
[quote] ---
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
hills(at)sunflower.com
Guest
|
| Posted: Wed Dec 31, 2008 3:00 pm Post subject: Fuel lines and fuel pump |
|
|
Good idea, but don’t forget to record it, just in case it ends up qualifying for Americas funnies videos !!!!!
A few ccs of avgas, shaken in a plastic pop bottle, should be all you need,,,, include an alternate spark source just to verify that the fuel air mixture is ignitable.
(not that I am condoning this test of course….)
Roger
From: owner-zenith-list-server(at)matronics.com [mailto:owner-zenith-list-server(at)matronics.com] On Behalf Of Flydog1966(at)aol.com
Sent: Wednesday, December 31, 2008 11:54 AM
To: zenith-list(at)matronics.com
Subject: Re: Re: Fuel lines and fuel pump
In a message dated 12/31/2008 12:38:36 A.M. Eastern Standard Time, hills(at)sunflower.com writes:
| Quote: |
Electrical power from a 12 volt aircraft system is protected by a fuse, for wing tanks pumps, it is typically 5 amps. If the fuel pump hot wire was to ground, a tiny and cool spark would result, and be gone in about 50 msec as the fuse blows from the overload (assuming you have installed the correct fuses for your pump). It’s a bit complicated, but basically the number of electrons that can jump through the air with 12 Volts source applied simply don’t have enough energy (I.E. heat) associated with them to ignite gasoline |
I'm not saying it will, or will not ignite, but all this talk has given me the urge to set up a test experiment to see for myself. I'll let you know the results ifin I dont git kilt.
Flydog at
Mythbusters Lab
New year...new news. Be the first to know what is making
| Quote: | | http://www.matronics.com/contribution |
01234567890123
[quote][b]
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
hills(at)sunflower.com
Guest
|
| Posted: Wed Dec 31, 2008 3:05 pm Post subject: Fuel lines and fuel pump |
|
|
I think it was in Kit planes last month, some poor fellow burned his fabric covered plane just by cleaning it. Apparently, rubbing caused a hot enough static spark to start the old fabric a burning,,,, heartbreaking, but something to learn from…
Roger
From: owner-zenith-list-server(at)matronics.com [mailto:owner-zenith-list-server(at)matronics.com] On Behalf Of Afterfxllc(at)aol.com
Sent: Wednesday, December 31, 2008 10:02 AM
To: zenith-list(at)matronics.com
Subject: Re: Re: Fuel lines and fuel pump
I wasn't going to even reply to his last post. But now he will say that a static spark has over 10,000 volts and that's why it can ignite fumes. But from what I remember as a kid a spark is a spark is a spark when it comes to gas fumes but he has it (clear as mud) I think that's why they put blowers in marine engine compartments. (Because any spark can ignite the fumes)
BTW Roger read this:
Grain Dust Explosion Elements
For a grain dust explosion to occur, four basic physical
elements must be present:
1.fuel – very small particles of dry grain dust from wheat,
milo, oats, barley, wheat or oat flour, corn starch, etc.
Grain dust must be suspended in the air to create an
explosion, but layers of dust in confined space provide
explosive potential.
2. oxygen – adequate air supply with normal oxygen
levels.
3. confinement – a vertical elevator leg casing or housing,
an enclosed drag conveyor, a dust bin, a down spout, an
aeration duct, a basement tunnel, a bin deck gallery, a
bin, a silo, etc.
4. ignition source – an overheated bearing in an elevator
leg boot, head or conveyor; an elevator leg belt rubbing
against leg sidewall casing; an electrical arc from a nonexplosion
proof electrical device; an electrical short;
phosphine pellets or tablets exploding in a wet aeration
duct; static electricity; a cigarette lighter or lit cigarette;
a cutting torch; metal sparks from a grinder; metal to
metal sparks; a dropped tool; lightning, etc.
Additionally, low relative humidity weather con
In other words Roger the controls you site in your post are explosion proof.
And : (intrinsically safe) in your context basically means it won't shock a human being
Now it's clear as mud
Jeff
There was a very good video a few years ago showing a float plane pilot fueling his airplane using plastic gas cans.
[quote]
The static caused from the plastic can set off the vapors and the result was a disaster...
When fueling a plastic gas can at the local gas station, theres is a requirement that your plastic container be "on the ground" to eliminate static spark, which WILL ignite the vapors.
Factoid...
[quote]
---
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
hills(at)sunflower.com
Guest
|
| Posted: Wed Dec 31, 2008 3:13 pm Post subject: Fuel lines and fuel pump |
|
|
Speaking of high voltage, if you put strobes in your plane, get the kind that have the power supply near the wing tip and only run 12vdc through the wing. My plane does not, and instead has 600vdc from the strobe power supply running through the wing to the tip stobe. I won’t tell you how I found this out, but I was just glad nobody was around when I stuck my volt meter leads through the wire insulation….….. J
Roger
From: owner-zenith-list-server(at)matronics.com [mailto:owner-zenith-list-server(at)matronics.com] On Behalf Of paulrod36(at)msn.com
Sent: Wednesday, December 31, 2008 12:52 PM
To: zenith-list(at)matronics.com
Subject: Re: Re: Fuel lines and fuel pump
OK, Roger, I believe you, but if it's OK with you, I'll just stand over there. Way over there. I've also been told that a lit cigarette just in your fingers, isn't actually hot enough to ignite gasoline fumes. But for religious reasons (I am a high priest of devout cowardice) I'd like to avoid any juxtaposition of thermal energy and flammables. "I would rather be safe a hundred times than die once."-------Mark Twain
Paul Rodriguez
[quote]
---
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
hills(at)sunflower.com
Guest
|
| Posted: Wed Dec 31, 2008 3:16 pm Post subject: Fuel lines and fuel pump |
|
|
Ya, in case you didn’t guess, I designed electrical control systems for grain elevators and even controls for a rocket fuel plant some years back (talk about paranoid, I’m surprised they didn’t limit us to 3 vdc in that place,,,,
Roger
From: owner-zenith-list-server(at)matronics.com [mailto:owner-zenith-list-server(at)matronics.com] On Behalf Of Afterfxllc(at)aol.com
Sent: Wednesday, December 31, 2008 10:02 AM
To: zenith-list(at)matronics.com
Subject: Re: Re: Fuel lines and fuel pump
I wasn't going to even reply to his last post. But now he will say that a static spark has over 10,000 volts and that's why it can ignite fumes. But from what I remember as a kid a spark is a spark is a spark when it comes to gas fumes but he has it (clear as mud) I think that's why they put blowers in marine engine compartments. (Because any spark can ignite the fumes)
BTW Roger read this:
Grain Dust Explosion Elements
For a grain dust explosion to occur, four basic physical
elements must be present:
1.fuel – very small particles of dry grain dust from wheat,
milo, oats, barley, wheat or oat flour, corn starch, etc.
Grain dust must be suspended in the air to create an
explosion, but layers of dust in confined space provide
explosive potential.
2. oxygen – adequate air supply with normal oxygen
levels.
3. confinement – a vertical elevator leg casing or housing,
an enclosed drag conveyor, a dust bin, a down spout, an
aeration duct, a basement tunnel, a bin deck gallery, a
bin, a silo, etc.
4. ignition source – an overheated bearing in an elevator
leg boot, head or conveyor; an elevator leg belt rubbing
against leg sidewall casing; an electrical arc from a nonexplosion
proof electrical device; an electrical short;
phosphine pellets or tablets exploding in a wet aeration
duct; static electricity; a cigarette lighter or lit cigarette;
a cutting torch; metal sparks from a grinder; metal to
metal sparks; a dropped tool; lightning, etc.
Additionally, low relative humidity weather con
In other words Roger the controls you site in your post are explosion proof.
And : (intrinsically safe) in your context basically means it won't shock a human being
Now it's clear as mud
Jeff
There was a very good video a few years ago showing a float plane pilot fueling his airplane using plastic gas cans.
[quote]
The static caused from the plastic can set off the vapors and the result was a disaster...
When fueling a plastic gas can at the local gas station, theres is a requirement that your plastic container be "on the ground" to eliminate static spark, which WILL ignite the vapors.
Factoid...
[quote]
---
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
