sprinkler flow rate

[khaled eltaweel]

For vertical opening if sprinklers spaced 1.8m with draft stop the minimum sprinkler flow is ?
For room have area 48m2 and classified as ordinary gr1 and have 4 sprinkler the flow required is?

 

[skdesigner]

Are you trying to give us a pop quiz?

I'm a half-decent tech. Some might even say the 'top'. Now throw out some hard questions, not these lay-ups.

 

[khaled eltaweel]

this is not a pop quiz ... really i do not know the answer .... appreciate your assistance if you explained the answer from NFPA ... thanks skdesigner

 

[skdesigner]

Are you taking a test? And posting the questions here in hopes we'll answer them for you?

 

[khaled eltaweel]

Exactly. I'm planning to take CWBSP NFPA Exam . And those questions as examples... appreciate your guidance to support me understanding how to get the answers. Thanks in advance

 

[khaled eltaweel]

any help skdesigner to get the answer for those questions ?

 

[skdesigner]

For the first question, NFPA 13 requires that water curtain sprinklers discharge a minimum of 3 gpm/lineal foot (37L/Min / lineal meter), so 6' x 3 gpm/ft = 18 gpm (68.13L) minimum flow per sprinkler.

For the second question, either you're not posting the entire question, or there is a diagram accompanying the text that provides additional information. How the sprinklers are spaced in the room, and whether the area/density or room design method is being used, will have an effect on the aggregate flow rate.

 

[khaled eltaweel]

Appreciate your response skdesiner
for second questions the distance between sprinklers is 15 ft and density / area method being used ... hope to help solve this question