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THE EFFECT OF PIPE ORGANIC SILICON COATING ON THE HYDRAULIC RESISTANCE IN HYDRAULIC SYSTEMS | ||
| AL-TAQANI | ||
| Article 1, Volume 19, Issue 2, 2006, Pages 0-0 | ||
| Abstract | ||
| The aim of this research is to study the effect of organic silicon coating on the hydraulic resistance or coefficient of friction ( גּ ) in pipes . The coatings were made by dispersing mixture of oxides and silicates into the organic silicon and also to increase the durability and longevity of pipes . During several experiments on four types of this coating mathematical relations have been obtained to calculate the coefficient of friction ( גּ ) after addition of new correction coefficient (Ψ) to the plasies equation for turbulent flow , ( Ψ ) depends on the compositions of the coating and it was clearly observed that this coating deareases (גּ ) in a range between 20.5% and 41. 3 % compared with the pipes without any coating Relations have been obtained between Reynold's number and ( גּ ) and Eu number and with correction coefficieat (Ψ) . Water was used as Newtonian liquid and aqueous solution of polyvinylchlovide PVC as Non-Newtonian liquid. | ||
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