desen gaze a-b

TRONSON A-B Pierderea de presiune fiind liniara rezulta ĺ ǻP = Pinitial - Pfinal Pierderea de presiune unitara pe traseul cel mai defavorizat (A-B-D-F) P'= ǻP/L=(1,7-0,5)/(5+4+7)=1.2/16=0.075 bar/m (1) PA=1.7 Bar ; PB = PA- p' x LAB = 1.7-0.075 x 5= 1.325 Bar ; LAB = 5 Km; QBD = 650+420+500+330=1900 mc/h PA - PB =1.7-1.325=0.375 Bar ĺ (N)DE ĺ DAB = (200-225) mm ĺ DBD = 225 mm (1)PAreal - (2)PBreal =0.375 Bar ĺ PBreal = 1.7-0.375 = 1.325 Bar ĺ PDreal =1.325 Bar (1)PB = 1.7 Bar (2)PD =0.375 Bar 5 Km 1950 225 ĺ 12) : PA - PB =0.375 Bar

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TRONSON A-BPierderea de presiune fiind liniara rezulta P = Pinitial - PfinalPierderea de presiune unitara pe traseul cel mai defavorizat (A-B-D-F)P'= P/L=(1,7-0,5)/(5+4+7)=1.2/16=0.075 bar/m(1) PA=1.7 Bar ; PB = PA- p' x LAB = 1.7-0.075 x 5= 1.325 Bar ; LAB = 5 Km; QBD = 650+420+500+330=1900 mc/hPA - PB =1.7-1.325=0.375 Bar (N)DE DAB = (200-225) mm DBD = 225 mm

(1)PAreal - (2)PBreal =0.375 Bar PBreal = 1.7-0.375 = 1.325 Bar PDreal =1.325 Bar

(1)PB = 1.7 Bar

(2)PD =0.375 Bar

5 Km

1950

225

2) : PA - PB =0.375 Bar