So what fire model did you use that will provide any degree off accuracy on 
fire control?


Roland Huggins, PE - Senior VP Engineering
American Fire Sprinkler Assn.    
Dallas, TX
http://www.firesprinkler.org <http://www.firesprinkler.org/>

Fire Sprinklers Saves Lives




> On Aug 9, 2017, at 4:36 PM, bcasterl...@fsc-inc.com wrote:
> 
> 
> Quoting bcasterl...@fsc-inc.com:
>  Make that 46% increase.
> If we started with 2500 and reduced to 2000 for using 286F (SR) because of 
> the reasoning, "fewer heads would go off", we would have to go the other 
> direction for QR. 2500x1.3=3250.
>  I did a quick activation comparison with 286F SR vs 200F QR. I used a 5100 
> kW t^2 ULTRA FAST design fire. In the same time 24 SR activated, 35 QR 
> activated.
> 
> Brad
> 
> 
>> If I used QR in EH I would inrease the operating area 30% of my own accord 
>> for the same reason we do that for dry- - -
>> "More heads would go off".
>> 
>> Brad
>> -
>> Quoting "Kyle.Montgomery" <kmontgom...@aerofire.com>:
>> 
>>> NFPA 13 section 11.2.3.2.2.2 states that QR sprinklers shall not be 
>>> permitted for use in extra hazard occupancies.
>>> 
>>> Section 12.6.6 states that the use of QR sprinklers shall be permitted when 
>>> listed for such use.
>>> 
>>> So, if I have a storage occupancy where the appropriate design criteria 
>>> table directs me to use an Extra Hazard design curve, can I use QR 
>>> sprinklers (assuming they are listed for storage use)?
>>> 
>>> I believe the answer would be “yes”, but looking for some feedback.
>>> 
>>> Thanks.
>>> 
>>> -Kyle M
>> 
>> 
>> 
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> 
> 
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