[TheForge] heavy metal math/c frame press ERRATA

Wed Nov 26 11:39:01 2003

-----Original Message-----
From: [email protected] =
[mailto:[email protected]]
On Behalf Of John Husvar
Sent: Wednesday, November 26, 2003 10:22 AM
To: [email protected]
Subject: Re: [TheForge] heavy metal math/c frame press ERRATA

John Husvar wrote:=20
> Not enough info, but if you're talking about two 50 HP compressors'
> output into 24" diameter pipe of much length -- could be a big Oops!
> KaBOOM! :)

Blowers.  Radial axis fans as I remember.  I've got to go back out there
today, will look.

> If not compressors, what kind of blowers? Usually fans or squirrelcage
> blowers will just stop moving air when the pressures on both sides=20
> equalize. Seems like they'd equalize way before reaching the yield =
point=20
> of the pipe material.`

Air has mass<G>.  Every fireman will tell you horror stories of someone =
who
turned off the fire hydrant too fast<G>.  Air has less mass than water, =
but
when flowing quickly, gosh<G>.

I mean when the pressure in the pipe exceeds the fan's air moving=20
ability. Still seems that'd occur way before the pressure in the pipe=20
reached yield.

IMHO, the pipes were insufficient for the pressure, but I haven't looked
deeply into it. Someone else did, after the failure.=20

Just curious, not arguing.

Understand, no argument felt on this end<G>.

=20
>> By the way, if you have a 48X or faster cd player in your computer,=20
>> don't sit with your eyes level with the player.  I had a bad disc in=20
>> mine, it broke while spinning, and exploded, literally, taking the=20
>> front off the player in the computer.  I have pictures.  I did NOT=20
>> see that one coming<G>.
>>
>=20
> I've heard of that, but thought it might be an urban legend. Guess =
not. :)

Got pictures, I was on the phone, it spun up, made fluttering sounds, =
then
WHAM.  I still haven't found the front cover of the little tray that =
slides
in and out.  CD just disentigrated.

All the best.=20