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 >>> >>>
_______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
