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LAMPIRAN JAWABAN A NO. 5

PROYEK : PUSAT PERBELANJAAN & FASILITASNYA - JAKARTA

BAGIAN : PEMADAM KEBAKARAN

PERIHAL : PERHITUNGAN ORIFICE PLATE

REV. / TANGGAL : 0 / 10 DESEMBER 2014

DIBUAT OLEH : PT. METAKOM CPRANATA

d = J14/(1+(((385.57*I14*I14*H14*((J14)^4))/(K14^2))))^0.25

d = D/((1+(385.57*K*K*h*D^4)/Q^2))^0.25

NoFloor

hk

D Q d

( ft ) ( inchi ) ( Gpm ) ( inchi )

1 Lt. LG (- 9.00 ) 133.0 0.61 2.5 250 1.3185

2 Lt. GF1 ( - 4.50 ) 118.0 0.61 2.5 250 1.3552

3 Lt. GF2 (+/- 0.00 ) 103.0 0.61 2.5 250 1.3976

4 Lt. UG (+ 5.00 ) 86.4 0.61 2.5 250 1.4538

5 Lt. 1 (+ 9.50 ) 71.4 0.61 2.5 250 1.5157LOW ZONE

6 Lt. 2 (+ 14.00 ) 56.4 0.61 2.5 250 1.5936

7 Lt. 3 (+ 18.50 ) 41.4 0.61 2.5 250 1.6967

8 Lt. 5 (+ 23.00 ) 26.4 0.61 2.5 250 1.8452

9 Lt. 6 (+ 27.50 ) 11.4 0.61 2.5 250 2.0954

10 Lt. P1 (+ 32.00 ) 91.1 0.61 2.5 250 1.4368

11 Lt. P2 (+ 35.40 ) 79.8 0.61 2.5 250 1.4795

12 Lt. P3 (+ 38.80 ) 68.4 0.61 2.5 250 1.5296

13 Lt. P4 (+ 42.20 ) 57.1 0.61 2.5 250 1.5894

14 Lt. 7 (+ 45.60 ) 46.6 0.61 2.5 250 1.6571HIGH ZONE

15 Lt. 8 (+ 49.10 ) 35.0 0.61 2.5 250 1.7531

16 Lt. 9 (+ 52.60 ) 23.3 0.61 2.5 250 1.8856

17 Lt. 10 (+ 56.10 ) 11.7 0.61 2.5 250 2.0906

18 Lt. Atap (+ 59.60 ) 0.0 0.61 2.5 250 2.5000

REMARKS :

Q : Flow (GPM).

d : Dia. of orifice or nozzle opening (inchi).

h : Head at orifice (ft).

D : Dia. Of pipe in which orifice is placed (inchi).

k : Discharge coefficient.