Ahh but we are intermixing reality and assigned methodology. With all the averaging to define the K-factor, applying rectangles to circular discharge patterns, differences in losses in fittings, etc etc etc despite using a very precise calculation equation, we still are making a rough estimate that works very well at ensuring fire control.
Just like the cut-sheet shows, the nominal K-factor is used. Roland Roland Huggins, PE - VP Engineering American Fire Sprinkler Assn. --- Fire Sprinklers Saves Lives Dallas, TX http://www.firesprinkler.org On Aug 15, 2013, at 6:47 AM, Steve Leyton <[email protected]> wrote: > I would check with the manufacturer of the specific sprinkler you are > proposing to install. Dry sprinklers have internal moving parts and the > designs aren't necessarily the same between different ones; if there's a > measurable added friction loss in the barrel from flow over and through the > various tube and spring assemblies, I'd wager they've got the net K or > pressure loss available. > > Steve Leyton _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
