Question

Q2 A 200 mm diameter cast iron pipe with wall thickness of 15 mm is carrying water when the outlet is suddenly closed. Calculate the maximmum discharge if the pressure rise is not to exceed 180 kN/m2 (a) assuming the pipe is rigid; (b) allowing for hoop stress but not longitudinal stress in the pipe wall; (c) assuming the pipe to have expansion joints throughout its length. (K-2.1 × 109 N/m 2, E 100x 109 N/m2)

Answer 1

wates Hoo roblem) pipe Rigid.) all kinetic enerşy O \Waten wlbe Converited nto C.-Velocity-Oh Sound-un medi nm ーーーープ PO So here PPm oookgi К 2.LXLO g 2.1XIO9 (@ox103 0.124 m). 3.gx/D-3M//s -3,9 LPS a)

Nous All et kinetic ene sin enegy stor) CAL) 2 LK walkY Stain n e Storedd5 2 E 2-t IN.E max

XlS 4 rs Cc

(Be-fore closes) frain enera tored stain energy sto ut 2E IS EL レ.

in tha Cove et 寸- + D l S Iooxlos