Paper doesn't catch fire at 451F.. it does start to turn brown. (Sorry Ray..) (I cook bacon on a rack over paper in a 450 degree oven.. and I doubt the temperature control is that tight)
Flammability is an issue.. paper is rougher than most plastics, so a spark can lodge or a small fiber could catch. You could fireproof the paper pretty easily with a variety of treatments. Jim Lux +1(818)354-2075 > -----Original Message----- > From: David Mathog [mailto:mat...@caltech.edu] > Sent: Wednesday, August 31, 2011 12:15 PM > To: Lux, Jim (337C); beowulf@beowulf.org > Subject: RE: [Beowulf] materials for air shroud? > > > Cardboard? Card stock? Masking tape? White glue? (that's what I > > usually use for cooling ducts.. easy to cut, glue, tape..) It's no > > more flammable than plastic, and it doesn't melt and get soft. > > That never crossed my mind. > > You sure about the flammability? I believe it for the ignition due to > temperature (Fahrenheit 451 and all that). However, I have a gut > feeling (but no data) that sparks are fairly likely to ignite cardboard, > and less likely to ignite a solid plastic sheet (polyethylene or > polypropylene, for instance). Not that I'm expecting sparks, but that > is a real possibility when a power supply fails. Maybe even a brief > flame. Of course paper won't hold up well compared to plastic if it > gets wet. Moisture resistance is not important here though - if the > insides of the computer are dripping, air shroud failure is the least of > my worries. > > Thanks, > > David Mathog > mat...@caltech.edu > Manager, Sequence Analysis Facility, Biology Division, Caltech _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
