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LABORATORY STUDY TO REDUCE FRICTION IN PIPES BY POLYMERIC ADDITIVES | ||
| AL-TAQANI | ||
| Article 1, Volume 21, Issue 4, 2008, Pages 0-0 | ||
| Abstract | ||
| The aim of this research was to study the effect of polymeric additives to water on friction factor change in a turbulent pipe flow. Experiment was done using the polyacrylamide ( PAM ) as polymeric additive to show the effect of addition of ( PAM ) with low concentrations (0.005,0.013 , 0.025%) on the friction factor (λ) . The results showed that the addition of (PAM) will reduced (λ) with a range of 6.51 to 37.95% comparable with the friction factor (λ) for water befor addition in a turbulent flow . Also studied the effect of addition ( PAM ) with high concentrations between( 0.03 – 0.06% ) on the reduction percent of (λ) . The results showed increasing the effect of the addition ( PAM ) on the reduction percent of (λ) with arrange of 21.32 to 44.62% and decreasing the effect of addition ( PAM ) on (λ) when exceeded the optimum values of PAM concentrations (0.03-0.042%) at several Reynold's numbers . A relations have been obtained between Reynold's numbers and (λ) and between the concentrations ( C%) with reduction percent of (λ) . | ||
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