Hi Nick its me again. I watched your videos and it had me interested to study NFPA-13 because of your video. I have a question please, so once you had identified or drawn the design area, does it mean the flow rate per sprinkler head is equal to the sprinkler system water demand or requirement (design area multiplied by density) divided by the number of sprinkler heads enclosed in the actual area you just drawn or work out?
Nick, since pipe closer to water source has higher flow, can I/we install lower K rating head? This way water doesn't squirt everywhere when activate. thk
When performing hydraulic analysis of sprinkler systems with inside fire hose stations, i.e., fire hose cabinets, should you include the fire hose cabinets in the analysis (50 gpm each for a total of 100gpm) or not include it and just add the 100gpm in the sprinkler demand in the last step?
doing hydraulic calculations helps us determine whether or not the system thats been designed for a given structure will work properly in the event of a fire. so we calculate the most remote or the most demanding area of that system, because if that area works then the rest of the system should work
thanks for this video. this video is very helpful. .. can ask a question?. the remote area is the basis to size the pipe riser? or the whole number of sprinkler of the building by hydraulic calculation?
It can be used to size the pipe riser if you are starting a new system in a new building on a new building site. But most times, in my experience anyways, youll be starting from am existing riser. What the remote area does is determine, if in the worst case scenario, that the system that you have designed will function properly upon activation. It will aid you in sizing pipe or figuring out where you have to make changes as well
Hi Nick, can i ask a question?, how you determine the remote area or most demand area of the building, if the building had a floor have no partition and the floor area is all about 7k sq. ft?. (ordinary 1 hazard) can i use my remote area is 1500 sq.ft or 7k sq. ft? thanks
you can. the size of the remote area has no direct correlation with the size of the system. the only determining factors would be hazard and structure. so youre only taking into account the density and ceiling height if the ceiling height is low enough that you area able to use a remote area reduction and that your hazard is low enough to use a reduction
Okay, after getting the remote area we are to solve the head loss, no? Do we have to solve all the head loss in the entire building or just from the tank to the remote area? hope my question makes sense.
Just for head loss in the remote area. As far as the tank thing, i personally havent had much experience with tanks and someone can correct me if im wrong, but i believe youre only calculating through the pipe directly from the water source and your remote area
Hi Nick. I watched your videos and it had me interested to study NFPA-13 because of your video. I have a question please, so once you had identified or drawn the design area, does it mean the flow rate per sprinkler head is equal to the: (design area multiplied by density) divided by (the number of sprinkler heads enclosed in the design area you just drawn)?
it would be the coverage of the sprinkler head, not the area. so it would be the density of the calculation multiplied by the coverage of the sprinkler head. i suppose you could divide it by the number of sprinkler in your area to get a general idea, but it may not be accurate as the coverage per head may change based on your layout potentially being atypical in design
Thats either going to be the furthest(or technically most remote) area away from the riser. But it can also be the most hydraulically demanding area, like an area thats a higher hazard or an area using extended coverage sprinkler heads
This guy is a genius at explaining this! He makes it so simple! 👍🏼
“Gonna get like 3 views” lol. Got a lot more than that!! This is helping me with school. Thank you!! :)
Post more!! He’s a great instructor
Thank you for this!!! Hydraulics make a little more sense. Would love to see more.
Great video. Thanks for posting it
Legendary video son!!
Please have him explain more!!!! This was helpful!
Hi Nick its me again. I watched your videos and it had me interested to study NFPA-13 because of your video. I have a question please, so once you had identified or drawn the design area, does it mean the flow rate per sprinkler head is equal to the sprinkler system water demand or requirement (design area multiplied by density) divided by the number of sprinkler heads enclosed in the actual area you just drawn or work out?
Nick, since pipe closer to water source has higher flow, can I/we install lower K rating head? This way water doesn't squirt everywhere when activate. thk
When performing hydraulic analysis of sprinkler systems with inside fire hose stations, i.e., fire hose cabinets, should you include the fire hose cabinets in the analysis (50 gpm each for a total of 100gpm) or not include it and just add the 100gpm in the sprinkler demand in the last step?
thank you for this video
why do we need to know first the remote are?
doing hydraulic calculations helps us determine whether or not the system thats been designed for a given structure will work properly in the event of a fire. so we calculate the most remote or the most demanding area of that system, because if that area works then the rest of the system should work
Sir Nick i hope you will make another video on how to design fire pumps . thann you again for this educational video
fire pumps is probably the next most likely video
Where exactly in the code was it that indicates you need to choose the sprinkler closer to the mains when including sprinklers?
can i ask again?, how to calculate the hydraulic for the grid system for sprinkler system ?
thanks for this video. this video is very helpful.
.. can ask a question?. the remote area is the basis to size the pipe riser? or the whole number of sprinkler of the building by hydraulic calculation?
It can be used to size the pipe riser if you are starting a new system in a new building on a new building site. But most times, in my experience anyways, youll be starting from am existing riser. What the remote area does is determine, if in the worst case scenario, that the system that you have designed will function properly upon activation. It will aid you in sizing pipe or figuring out where you have to make changes as well
thank you for your comment.
can ask something again? how to calculate the area be used in most remote area ? thanks
Hi Nick, can i ask a question?, how you determine the remote area or most demand area of the building, if the building had a floor have no partition and the floor area is all about 7k sq. ft?. (ordinary 1 hazard)
can i use my remote area is 1500 sq.ft or 7k sq. ft? thanks
you can. the size of the remote area has no direct correlation with the size of the system. the only determining factors would be hazard and structure. so youre only taking into account the density and ceiling height if the ceiling height is low enough that you area able to use a remote area reduction and that your hazard is low enough to use a reduction
@@I_WasHere, there is a reduction relative to the ceiling height??😮 can you send me the reference sir?
Okay, after getting the remote area we are to solve the head loss, no? Do we have to solve all the head loss in the entire building or just from the tank to the remote area?
hope my question makes sense.
Just for head loss in the remote area. As far as the tank thing, i personally havent had much experience with tanks and someone can correct me if im wrong, but i believe youre only calculating through the pipe directly from the water source and your remote area
Thank you so much for the reply.My classmate thinks that we need to calculate the head loss for the entire building. God bless
but how do you transfer that area to autosprink?? because when you place a remote area in AutoSprink it defines the shape and you can't change it....
You're using the wrong remote area tool then. Use the boundary.
Hi Nick. I watched your videos and it had me interested to study NFPA-13 because of your video. I have a question please, so once you had identified or drawn the design area, does it mean the flow rate per sprinkler head is equal to the:
(design area multiplied by density) divided by (the number of sprinkler heads enclosed in the design area you just drawn)?
it would be the coverage of the sprinkler head, not the area. so it would be the density of the calculation multiplied by the coverage of the sprinkler head. i suppose you could divide it by the number of sprinkler in your area to get a general idea, but it may not be accurate as the coverage per head may change based on your layout potentially being atypical in design
thanks a ton
by the way how to decide most demanding area
Thats either going to be the furthest(or technically most remote) area away from the riser. But it can also be the most hydraulically demanding area, like an area thats a higher hazard or an area using extended coverage sprinkler heads