Question

Tulu mela (PLUD 4151) Assignment Single A (ar U ) inaris M Page 2 of 2 3) Figure bellow shows a pump delivering 840 L/min of crude oil (sg = 0.85) from an underground storage drum to the first stage of a processing system. (a) If the total energy loss in the system is 5 N·m/N of oil flowing, calculate the added head by the pump to the system. (b) If the energy loss in the suction pipe is 2 N.m/N of oil flowing, calculate the pressure at the pump inlet. [1 mark] v 90 [shme.oj sedui mm-001 od ni 9:57 wolt omulov bos vincl eierw ED+ O mmot poiwo lolorit la s o l vot noited Air at 825 kPa git 1.5 m Suction pipe- DN 65 Brollib 22 ali osobno Schedule 40 serwone wollen vile olay oli notleboronism ali brifl moteve best onlogg

Answer 1

ANSWER

Given data

A pump delivering = 840L/min

crude oil sg = 0.85

  
Fox ON 65 Schedule 40 ppe. Internal Diameter = 62-4mm. Apply Bemouli's Eduation between point 0 % a) fi + + 3,9-cup = pt pt pt 299 +(Lv), ning + +0-up = 895x100 + d +(3+10 +1.5) x9:8) +. (529-81) 1000 X0-85 -Wp= 9+0.588+ 49.05 -wp= +1019.638 wp-1019.638 1032 7: 638 92 x 1 Kg Wp = 1019.638 no mass lup = –1019.638 Nm kg wp =-1019-638 J/K9. flow rate :- m = P& 3 = 0-85 X1000 X 840 ( mo* IDLÝ m= bakgls Powey delivered by Pump P= po wp 6 ) P= 11,91019.638 P= la 133.69W

1b) velocity at Point 2, Q=A2V.. 840 poinX Impex Stone = I 20-06278 v2 12 colo V2 = 4.534 m/s Apply Bernoulis Equation between point © ¢ © to n = 219 = Php on + z3g+ (11) 3. $t the nato e valoroast 452+ (2x9:9)+( = Pai + 16.378578 +29.43 + 19.62 s post 59.32 8578 =0 > P= -59-328578 X 850 --50.429Kpo