Spark ?
Butt-Head
Joined: Apr 2004
Posts: 9,453
Likes: 2,936
From: Reed Point, MT
Simply put: The heat generated by compressing air.
Any time you compress anything, it creates heat. A diesel engine uses this heat to ignite a precisely metered amount of fuel -injected at precisely the right time- to cause combustion.
Glow plugs are only used when cold to help with the heat required to ignite the fuel. Glow plugs do not ignite the fuel.
Cody
Any time you compress anything, it creates heat. A diesel engine uses this heat to ignite a precisely metered amount of fuel -injected at precisely the right time- to cause combustion.
Glow plugs are only used when cold to help with the heat required to ignite the fuel. Glow plugs do not ignite the fuel.
Cody
Posting Guru
Joined: Oct 2000
Posts: 1,355
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From: Western NC
Posting Guru
Joined: May 2004
Posts: 1,358
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From: China Grove, TX
when we fill air tanks a the fire department, we fill them to 4500 PSI from anywhere between 0 and 4500.....and the tanks get HOT. if you filled them fast enough, they'd be WAY too hot to touch. poof, compression creates heat.
Junior User
Joined: Sep 2005
Posts: 56
Likes: 0
From: Houston, TX
Originally Posted by RedStroker6
when we fill air tanks a the fire department, we fill them to 4500 PSI from anywhere between 0 and 4500.....and the tanks get HOT. if you filled them fast enough, they'd be WAY too hot to touch. poof, compression creates heat.
Sorry for the distraction guys, indulge me...
Posting Guru
Joined: Aug 2004
Posts: 2,417
Likes: 4
From: Braham MN
Make that another fireman, 4200!!!! ours are only 2170 I wanna say. I dont exactly remember, but its not that high. good for about 12 minutes on the old guys to 17 for me.
Diesel Rod
Diesel Rod
Trending Topics
Junior User
Joined: Sep 2005
Posts: 56
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From: Houston, TX
You guys are using steel tanks, they are rated for 2,200 lbs. The new Scott airpacks are carbon fiber and are rated for 4,500 lbs. They'll last on average about 30 minutes. Our RIT pack is a one hour tank but it weighs a ton...
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Senior User
Joined: Jul 2005
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From: Woodburn, OR
It's called Heat of Adiabatic Compression.... It makes the diesel engine work and fills our air packs. We use MSA SCBA with 2216 carbon fiber cylinders. I think the whole pack weighs less than 8 lbs. When I first started we used steel cylinders that were over 20 lbs just for the cylinder and the pack was about 15lbs.
Senior User
Joined: Jul 2005
Posts: 463
Likes: 2
From: Woodburn, OR
Could not edit my last post... Heres what I wanted to say.
It's called Heat of Adiabatic Compression.... It makes the diesel engine work and makes our SCBA cylinders hot when they are fill fast. We use MSA SCBA with 2216 carbon fiber cylinders. I think the whole pack weighs less than 8 lbs. When I first started we used steel cylinders that were over 20 lbs just for the cylinder and the pack was about 15lbs.
It's called Heat of Adiabatic Compression.... It makes the diesel engine work and makes our SCBA cylinders hot when they are fill fast. We use MSA SCBA with 2216 carbon fiber cylinders. I think the whole pack weighs less than 8 lbs. When I first started we used steel cylinders that were over 20 lbs just for the cylinder and the pack was about 15lbs.
