Building contents from NFPA 13, Chapter 5: .Quantity. .Combustibility. .Heat Release Rate.
What Edition? It doesn't matter in our lifetimes so far-- it says the same thing cycle after cycle. We designers don't need numbers for these things to do our job and like Bill Brooks says, "13 is a rule book not a how to book". Good thing most of the other chapters have numbers for rules. After scratching my head for several years I have some personally satisfying numbers for Quantity and Heat Release Rate, and after doing Tim's Christmas Trees I am getting there on Combustibility. :) Brad ;) Casterline :) On Sep 7, 2016 6:49 PM, "Brad Casterline" <[email protected]> wrote: > Just to be clear, I ADDED the cigarettes, to simulate Bruce's embers. > > And Roland, anytime you want to declare 'dead horse', I will oblige. > On Sep 7, 2016 6:23 PM, "Brad Casterline" <[email protected]> wrote: > >> I put about a thousand lit cigarettes in, on, and around the trees. >> Apparently it is harder to light fairly fresh vegetation than say, a >> cardboard case of styrofoam coffee cups in the office break room. >> On Sep 7, 2016 2:25 AM, "Brad Casterline" <[email protected]> wrote: >> >>> My pleasure Bruce, thank you for the feedback. >>> >>> I looked at quite a bit of literaure on 'moisture content of fresh cut >>> Christmas Trees'. It looked liked 114% was common. The NIST input file I >>> used was showing 112.3, so I left it alone. In fact I did not change >>> anything about the trees. >>> >>> The ember question is excellent! >>> I will make some embers and let them fly all over the place. They will >>> be like the 'ignitor' particles shown in the partial input file except >>> STATIC=.FALSE. >>> >>> Thanks again, >>> >>> Brad >>> On Sep 6, 2016 11:23 PM, "Bruce Verhei" <[email protected]> wrote: >>> >>>> Brad >>>> >>>> Thank for the rational analysis. How did you arrive how much water the >>>> trees had on board? They start off quite dry and take up quite a bit of >>>> water the first day or two. >>>> >>>> Experience says that trees throw off embers and are ignited by same, >>>> especially if being pre-heated. I would be leery of a convection and >>>> radiant heat model covering this adequately. >>>> >>>> Best >>>> >>>> Bruce Verhei >>>> >>>> On Sep 6, 2016, at 07:01, Brad Casterline <[email protected]> >>>> wrote: >>>> >>>> https://www.dropbox.com/s/jri62zfn4zvulia/Tim%27s%20Trees.pdf?dl=0 >>>> >>>> >>>> >>>> For what it is worth! >>>> >>>> >>>> >>>> Thanks for the excellent sprinkler challenge Tim!!! >>>> >>>> >>>> >>>> *Brad Casterline, NICET IV* >>>> >>>> *Fire Protection Division* >>>> >>>> >>>> >>>> *FSC, Inc.* >>>> >>>> P: 913-722-3473 >>>> >>>> [email protected] >>>> >>>> www.fsc-inc.com >>>> >>>> >>>> >>>> *Engineering Solutions for the Built Environment* >>>> >>>> >>>> >>>> _______________________________________________ >>>> Sprinklerforum mailing list >>>> [email protected] >>>> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-f >>>> iresprinkler.org >>>> >>>> >>>> _______________________________________________ >>>> Sprinklerforum mailing list >>>> [email protected] >>>> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-f >>>> iresprinkler.org >>>> >>>>
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