ALIRAN PIPA 3 RESERVOIR Gurawan Djati W
Problem Aliran 3 Reservoir +100 m +90m f2=0.022 D2=0.08 m L2 = 100 m Q2
Q1 f1=0.02 D1=0.1 m L1 = 120 m Jika seperti disamping pers. Kontinuitas
Q1 + Q2 = Q3
T Q3 f3=0.018 D3=0.12 m L3 = 150 m
+80m
Ataukah arah aliran sprt ini? +100 m +90m f2=0.022 D2=0.08 m L2 = 100 m Q2
Q1 f1=0.02 D1=0.1 m L1 = 120 m Jika seperti disamping pers. Kontinuitas
Q1 = Q2 + Q3 MANA YANG BENAR?????
T Q3 f3=0.018 D3=0.12 m L3 = 150 m
+80m
Jika garis energi sprt ini? +100 m
Q1 f1=0.02 D1=0.1 m T L1 = 120 m
Jika seperti disamping pers. Kontinuitas
Q1 = Q2 + Q3
Q1
hf2
+90m
f2=0.022 D2=0.08 m L2 = 100 Q2 m hf3 Q3
+80m
f3=0.018 D3=0.12 m L3 = 150 m
Q2 Q3
100 T g 2 D15 8 f1 L1
hf1
T 90 g 2 D2 5 8 f 2 L2
T 80 g 2 D35 8 f 3 L3
T didapat dg trial & error!!, shg nilai kiri sama dg kanan ruas
Trik dan Trip supaya tidak sesat!!
Dicoba T = 90, shg Q2 = 0.0 Bandingkan Q1 dg Q3, jika Q3> Q1, berarti Q3 perlu dikecilkan (memperkecil T) sehingga T perlu dikecilkan….dan pers, kontinuitas BERUBAH menjadi Q1 + Q2 = Q3 Q1
Q2 Q3
100 T g 2 D15 8 f1 L1
90 T g 2 D2 5 8 f 2 L2
T 80 g 2 D35 8 f 3 L3
T didapat dg trial & error!!, shg nilai kiri sama dg kanan ruas
T = 88.2 m Q1 = 0.024394 m3/dt Q2 = 0.005696 m3/dt Q3 = 0.030242 Error = 0.0153%