steam cannon?

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Postby Navigator7 » Thu Dec 28, 2006 4:45 pm

<blockquote id="quote"><font size="1" face="tahoma,verdana,arial" id="quote">quote:<hr height="1" noshade id="quote">Originally posted by spudproof
[br]use a butterfly-valve and between the tank and valve have a pipe so you wold get the heat little away from the chamber it cold be silly
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

[grammar nazi] (':evil:')[/grammer nazi]

Try again?
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Postby spuzi14 » Thu Dec 28, 2006 11:16 pm

Isn't Spudproof foreign?
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Postby Navigator7 » Thu Dec 28, 2006 11:24 pm

Not unless he has free health care.
Not unless he has free dental
Free food
Free room and board
Can bring a company to it's knees by claiming some PC conditioned claim


What foreign got to do with it?
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Postby SpudStuff » Fri Dec 29, 2006 2:39 am

I thought they said it "ended up" at 1/2 miles. That would include roll distance whick I would think would be quite a bit with a big heavy ball like that.
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Postby Navigator7 » Fri Dec 29, 2006 1:47 pm

<blockquote id="quote"><font size="1" face="tahoma,verdana,arial" id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Spudman07
[br]Yeah, they used a huge butterfly valve (I saw the episode last night). That cannon has great potential. They were worried about the valve failing from the heat, so they wrapped it in a wet towel. If you could somehow insulate the steam chamber extremely well, you should be able to make this thing happen.
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

I don't recall any steam rated butterfly valves out there. There are few products that work better for steam than machined steel, cast iron or brass..
I might have said somewhere UHMW is suitable but I mistyped. Teflon is.

I've built several steam engines and teflon rings are customary.

I don't see why a chamber sealing or barrel sealing design won't work with steam.
The components must be tough.
And you need a automatic condensate drain which can be easily made with brass, a ball bearing and a drill press or lathe..
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Postby MisterSteve124 » Fri Dec 29, 2006 11:52 pm

Just get a pressure rated valve why would it matted if its not steam rated
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Postby Zorrowannabe9 » Fri Dec 29, 2006 11:58 pm

Ive got some steam rated fiberglass pipe for sale in a few months. It's 6" diameter fiberglass tubing with 2" of hard polyeurethane foam which is encased in a PVC shell...Not sure how well it would do for the heating process, but just a lil head up if your interested.
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Postby Navigator7 » Sat Dec 30, 2006 12:16 am

<blockquote id="quote"><font size="1" face="tahoma,verdana,arial" id="quote">quote:<hr height="1" noshade id="quote">Originally posted by MisterSteve124
[br]Just get a pressure rated valve why would it matted if its not steam rated
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">
Great question.
Huge issue.
Heat matters.

Non steam rated valves simply leak.
Pipe will burst.
I think PVC is rated at 70ºf.
If not, shoot me.
Go up in temp and go down in rating.

There are tons of ratings...all for good reason.
This country has done steam....been there done that.
Steam was at it's apex when the diesel came along.
The only thing that has improved since the age of steam is reliable alarms and sensors.

If you don't believe me...steam the outside of a PVC pipe.
Or buy a pressure rated PVC valve and run steam through it.
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Postby userjjb » Sat Dec 30, 2006 2:37 am

<blockquote id="quote"><font size="1" face="tahoma,verdana,arial" id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Navigator7
The only thing that has improved since the age of steam is reliable alarms and sensors.<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">I should think metallurgy and materials science have advanced. With our greater understanding of physics and the advent of computational models, I (the non-expert) should think we're a little better off.

Steam is still as dangerous as it was in the industrial age, but steam <b>power</b> surely must be safer.
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Postby An Apple Pie » Sat Dec 30, 2006 9:46 pm

He said that it stopped at around a mile. He estimated that it actually flew about 1000ft.
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