Question

40. There is a pressure loss of300 kN/m2 when water is pumped through pipeline A at a rate of 2 m/s and there is a pressure loss of 250 kN/m2 when w pressure loss which will occur when 1.5 m3/s of water are pumped connected (i) in series, (i) in parallel, assuming that junction losses may be neglected. In the latter case calculate the volume rate of flow through each pipe. (10 marks) m2 when water is pumped through pipeline A at a rate of 2 m3/s and there is ater is pumped at a rate of 1.4 m'/s through pipeline B. Calculate the though pipes A and B jointly if they are

Answer 1

Pipe A Pipe. om,Darcy weisbach equation, hore h- head loss(m). fa trichien factor 8 gravitienal acc D cfiameter f pipe 2 S0 AS nothing is given abnt-Pipe specimen ie,[math diameter, o ascuming Both pipe hare simillo(equal ) length ond diameter aund alto friction fachor to handy crs method Klno for, pipe A, ARA VA Co, 300 q.g 2L 9.gl kA=Censtat.B9 assumg 2,

Simittan 2 2 s, 250e 4 12. 55 0) bipe, y Pipe, A an both pipe is omecteel msei eo voil be soum avulhead los uoill Homce 2. Crr h(5+1251.5 m 2. l b) (0 an Commeted in parallel. Then hecol lose both pipes tohon dtischa.ge thrmah pipe. e d1. 8 Pipe. A is akme wilt be Q is given 1.C㎡ rtn

2. 2L 2. 2 2. 12s 81) pe A Corry dicchvde tp: О.eag-k 0.819 Head loss im barellel will be 7