performance of polyacrylamide as drag reduction in canada

performance of polyacrylamide as drag reduction in canada
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  • Can polyacrylamide be a drag reducer?
  • A very simple cationic monomer and a cationic hydrophobically associating polyacrylamide were synthesized, and the polymer was to function as a drag reducer. The structures of monomer and polymer were characterized by IR and NMR, and the drag-reducing rate, below and above the critical association concentration, (CAC) was tested.
  • What is the optimum drag reducer concentration for modified polyacrylamide?
  • The modified polyacrylamide is a typical hydrophobically associating polymer, reaching a CAC at a mass concentration of about 0.25% (by weight). It is found from the friction test that the optimum concentration of the drag reducer is about 0.05% in fresh water, and the highest drag-reducing rate reaches as high as 72%.
  • Is polymer a drag reducer?
  • At a low concentration, the polymer solution with low viscosity (so-called slick water) has excellent drag reduction performance. Plus, the residue amount after gel breaking is also very small. Therefore, polymer is the very drag reducer that kills two birds with one stone, and this paper next discusses polymer.
  • Does polyacrylamide drag reducing agent affect friction factor and heat transfer coefficient?
  • Varnaseri M, Peyghambarzadeh SM (2025) The effect of polyacrylamide drag-reducing agent on friction factor and heat transfer coefficient in laminar, transition and turbulent flow regimes in circular pipes with different diameters. Int J Heat Mass Transfer 154:119815