ALL THINGS FIRE PROTECTION | SUBSCRIBE NOW
|
Does anyone have any experience with determining an appropriate design criteria for protecting rectangular hay bales stacked to about 20 ft. in a 25-30 ft. metal purlin building?
Posted anonymously for discussion. Discuss This | Submit Your Question | Subscribe
6 Comments
David J. Branson
11/6/2019 10:25:49 am
We have dealt with similar high piled storage of baled cotton motes, compressed cotton bales, wood, etc. The required sprinkler system measures depend heavily on AHJ, codes & ordinances, warehouse location & configuration, pile spacing and other criteria.
Paul Pinigis
11/6/2019 10:27:27 am
Well, they would be a class III commodity in a solid pile to 20 ft. , so table 22.2 in the 2019 edition gives you some options.
Jessica L.
11/6/2019 10:28:26 am
About 10 years ago I designed a system for a hay barn. I discussed it with NFPA because there weren't any design guidelines for that storage commodity. They "unofficially" advised me to use Ordinary Hazard Group 2 density. The building was standalone, unoccupied, and used only for hay bale storage. 11/6/2019 11:04:16 am
With 20-ft high storage it would not be OH2. OH2 is for Class I-III to no higher than 12-ft, and Class IV no higher than 10-ft. I think Class III is your driving commodity, so finding the design curve for protection of high-piled Class II Commodity will govern. See 2016 NFPA 13 Chapter 14.2 for a design curve, and remember your combined hose allowance is 500-gpm Leave a Reply. |
Free SignupSubscribe and learn something new each day:
CommunityThank You to Our Top
February '21 Contributors!
Your PostThe ToolkitSprinkler Designer or Engineer?
Get all of our tools, including the Sprinkler Database, Friction Loss Calculator, Fire Pump Analyzer and more: 
Filters
All
Archives
April 2021
Daily
Daily discussions are open-ended fire protection, fire alarm, and life safety questions submitted anonymously for the benefit of sharing expertise and learning from other perspectives. Anyone can submit a question here:
Exam Prep
2020 PE Prep Guide
(Available Now!) 
PE Prep Series
(Available Now!) 2020 PE Prep Series
Current Leaderboard (Click to enlarge) 
PE Problems
Visit July-October for daily Fire Protection PE Exam sample questions.
Solutions are posted the day after posting. Comment with your solutions, questions or clarifications. Please note that questions posted are unofficial and in accordance with NCEES rules are intended to be similar to actual exam questions, not actual exam questions themselves. |
RSS Feed
