Dave: Here are some links. I think it unlikely that you are the "only guy..."
That cliche is used so often it is a dog that just won't hunt. http://www.nfpa.org/assets/files//PDF/Research/Research_Plan.PDF Here is one you mentioned: http://www.nfpa.org/publicJournalDetail.asp?categoryID=1584&itemID=38656&src=NFPAJournal Yours, Bruce V. -------------- Original message ---------------------- From: "Dave Phelan" <[EMAIL PROTECTED]> > Good evening all, > > Im looking for some field experiences or even fire losses / saves where > sprinkler protected warehousing also contains ceiling fans known as HV/LS or > high-volume / low speed. These fans can span 24 feet in diameter and > produce downdrafts of +300,000 cubic feet / minute. > > I was inspecting an ESFR system in a high pile warehouse and noticed the > fans and took an interest in them for their potential impact on sprinkler > operation or performance. I've done some phone calls back and forth with > the manufacturer and sales people, even an engineer or two. So far there is > just two sides of the story: > > I see this large downward airflow as being a potential delay or impairment > to initial head operation and therefore an AHJ problem. The other side sees > this as not a problem because they have mustered an NFPA 'approval' since > they allegedly do not violate the obstruction rules. There also is an > article in this months NFPA journal on these fans and some preliminary > testing. > > Naturally the manufacturer is quick to point out these fans are installed > 'everywhere' and Im the only guy raising his concerns .... so since they are > everywhere I'd like to hear about other people's experiences with them. > > Thanks group. > > Dave P. > An AHJ in NJ > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
