3. Given a four-pipe series system as shown below. The total pressure drop is PA-Pe =100 KPa (25P). The pipe data are Pipe 1 2 3 D1,L1 L(m) 200 100 150 120

D2,L2 Leg D D D(cm) =1 16 12 10 14 D3, L3 D4, L4 (mm) 0.3 0.25 The fluid is water (9 = 10 m/s). Calculate the flow rate Q (m/hr). Neglect minor loss. 0.2 0.15 B

3. Given a four-pipe series system as shown below. The total pressure drop is PAPB=100 kPa(25P). The pipe data are The fluid is water (=106m2/s). Calculate the flow rate Q(m3/hr). Neglect minor loss. Deq5Leq=i=1nDi5Li