SCI和EI收录∣中国化工学会会刊

›› 2015, Vol. 23 ›› Issue (3): 471-475.DOI: 10.1016/j.cjche.2014.11.023

• 流体力学与传递现象 • 上一篇    下一篇

An experimental study of drag reduction by nanofluids in slug two-phase flow of air and water through horizontal pipes

A. R. Pouranfard, D. Mowla, F. Esmaeilzadeh   

  1. Environmental Research Center in Petroleum and Petrochemical Industries, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
  • 收稿日期:2013-06-09 修回日期:2013-10-31 出版日期:2015-03-28 发布日期:2015-04-03
  • 通讯作者: D. Mowla
  • 基金资助:
    Supported by the Shiraz University.

An experimental study of drag reduction by nanofluids in slug two-phase flow of air and water through horizontal pipes

A. R. Pouranfard, D. Mowla, F. Esmaeilzadeh   

  1. Environmental Research Center in Petroleum and Petrochemical Industries, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran
  • Received:2013-06-09 Revised:2013-10-31 Online:2015-03-28 Published:2015-04-03
  • Supported by:
    Supported by the Shiraz University.

摘要: This study investigates the effect of injecting nanofluids containing nano-SiO2 as drag reducing agents (DRA) at different concentrations on the pressure drop of air-water flow through horizontal pipe. The test fluid used in this study was air-water with nano-SiO2 particles at 0.1%-1% mass concentration. The test sections of the experimental set-up were five pipes of the same length of 9 m with ID from 0.0127m-0.03175m (0.5 to 1.25 in). Air-water flow was run in slug flow regime under different volumetric flow rates. The results of drag reduction (η%) indicated that the addition of DRA could be efficient up to some dosage. Drag reduction performed much better for smaller pipe diameters than it did for larger ones. For various nanosilica concentrations, the maximum drag reduction was about 66.8% for 0.75% mass concentration of nanosilica.

关键词: Nanofluid, Drag reduction, Turbulent two-phase flow, Horizontal pipeline

Abstract: This study investigates the effect of injecting nanofluids containing nano-SiO2 as drag reducing agents (DRA) at different concentrations on the pressure drop of air-water flow through horizontal pipe. The test fluid used in this study was air-water with nano-SiO2 particles at 0.1%-1% mass concentration. The test sections of the experimental set-up were five pipes of the same length of 9 m with ID from 0.0127m-0.03175m (0.5 to 1.25 in). Air-water flow was run in slug flow regime under different volumetric flow rates. The results of drag reduction (η%) indicated that the addition of DRA could be efficient up to some dosage. Drag reduction performed much better for smaller pipe diameters than it did for larger ones. For various nanosilica concentrations, the maximum drag reduction was about 66.8% for 0.75% mass concentration of nanosilica.

Key words: Nanofluid, Drag reduction, Turbulent two-phase flow, Horizontal pipeline