Your scenario, which sounds like exposure protection, is likely not going to be achieved using closed sprinklers and should instead be using deluge. Why not provide a fixed water spray exposure system using open spray nozzles in accordance with NFPA 15, FM 4-1N,...or API RP 2030 Sections 7.2.2 and 7.3.12 alleviating the need for dry sprinklers altogether? Since the title of this thread says ethanol unloading, does this project fall under the purview of API? API RP 2030 (and other documentation) has quite a bit of information about fixed water spray in the petrochemical industry. Does the owner have their own specific guidelines/standards that must be followed over and above locally-adopted codes and standards? In my experience, most do.
Good luck, Ryan L. Hinson, PE*, SET** \ Burns & McDonnell Senior Fire Protection Engineer O 952-656-3662 \ M 763-688-4045 \ F 952-229-2923 [email protected] \ burnsmcd.com 8201 Norman Center Drive, Suite 500 \ Minneapolis-St. Paul, MN 55437 *Registered in: LA, MD, MN, PA, TX, & UT **NICET IV - Water-Based Systems Layout -----Original Message----- From: Sprinklerforum <[email protected]> On Behalf Of Ben Young via Sprinklerforum Sent: Wednesday, September 2, 2020 12:59 PM To: 321 via Sprinklerforum <[email protected]> Cc: Ben Young <[email protected]> Subject: Ethanol unloading exposure protection Does anyone know where I can find some criteria (preferably in FM Global data sheets) on how to provide exposure protection on the exterior of a building wall using dry sidewall heads? I have an insurance company telling me to do this but they didn't give me a basis of design. Trying to stay away from foam since to my knowledge there are no dry sidewalls listed for discharge devices and I don't want to deal with containment. Benjamin Young _______________________________________________ Sprinklerforum mailing list [email protected] https://nam05.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.firesprinkler.org%2Flistinfo.cgi%2Fsprinklerforum-firesprinkler.org&data=02%7C01%7Crhinson%40burnsmcd.com%7C35d040c9d95c46ae338008d84f69e711%7Cbfbb9a2b6d994e78b3c795005d555c8b%7C0%7C0%7C637346663552988633&sdata=sC0dq%2BKJDyrxp%2F0MJbKHP9JrTsK8YWDXbZq0xvX5PPw%3D&reserved=0 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
