Aluminum Powder and Zwitrionic Surfactants as Drag Reducing Agents in Pipe Lines | Science Publications

American Journal of Applied Sciences

Tania S. Hadi¹  Hayder A.A. Bari¹  Rosli B.M. Yunus¹ 

关键词: Drag reduction;    zwitterionic surfactants;    flow improving;    pumping power saving;   

DOI  :  10.3844/ajassp.2010.1310.1316

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: One of the most power consuming sector in the industry is the liquidtransportation through pipelines due to the turbulent mode the liquids are transported with. Dragreducing agents were used as a solution for the pumping power losses in pipelines. One of the inportantdrag reducing agents suggested to improve the flow in pipelines are the suspended powders.Approach: In the present study, aluminum powders and zwitrionic surfactant ((3-(Decyldimethyleammonio)propanesulfonate inner salt and 3-(n-n Dimethylpalmityl-ammonio propanesulfonate) wereinvestigated as drag reducing agent in aqueous media. The effect of additive concentration, Reynoldsnumber and the testing section length are the main variables investigated. All the experimental workwas carried in a build up experimental rig that consist of a closed loop experimental piping system.Results: The experimental results showed that, the percentage drag reduction Dr (%) increases byincreasing the additive concentration and Reynolds number with maximum percentage drag reductionup to 50% with only 500 ppm addition concentration. Conclusion: The effect of testing section lengthwas not so clear due to the way of introducing the additive to the main flow, that the additive is mixedin the main tank and not injected.

【 授权许可】

Unknown