Flow Characteristics in Vertical Upward Gas-Liquid Two-Phase Flow with Surfactant Additives <BR>-1st Report, Pressure Drop Reduction -
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- SAWAI Toru
- 近畿大学生物理工学部
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- OHMASA Mitsushi
- 近畿大学生物理工学部
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- HIROKAWA Noriyasu
- 近畿大学生物理工学部
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- KAJI Masuo
- 近畿大学生物理工学部
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- FUJII Masao
- 近畿大学生物理工学部
Bibliographic Information
- Other Title
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- 界面活性剤添加垂直上昇気液二相流における流動特性<BR>-第1報,圧力損失低減 -
- 界面活性剤添加垂直上昇気液二相流における流動特性(第1報)圧力損失低減
- カイメン カッセイザイ テンカ スイチョク ジョウショウキエキ ニソウリュウ ニ オケル リュウドウ トクセイ ダイ1ポウ アツリョク ソンシツ テイゲン
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Description
To investigate the effect of surfactant additives on the pressure drop and the liquid holdup in vertical upward two-phase flow, experimental studies were conducted for two types of surfactants: one was n-hexadecyltrimethylammonium chloride mixed with a counter-ion sodium salicylate (CTAC) acted as a foaming agent and the other was sodium oleate (SO) acted as a non-foaming agent. The surface tension was reduced to 50% of water by the addition of each surfactant. The pressure drop reduction (PDR) was achieved up to 90% by the addition of CTAC at low liquid volumetric flux conditions. The addition of CTAC caused the reduction in liquid holdup in the range of the gas volumetric fluxes between 0.2 and 10 m/s. The PDR was mainly caused by the reduction in the gravitational pressure gradient due to the formation of the liquid phase containing fine bubbles. When SO was added, the PDR of 5-10% was obtained. The main cause of PDR was the reduction in the frictional pressure gradient.
Journal
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- Journal of the Japanese Society for Experimental Mechanics
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Journal of the Japanese Society for Experimental Mechanics 10 (1), 23-30, 2010
The Japanese Society for Experimental Mechanics
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Details 詳細情報について
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- CRID
- 1390282680165667840
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- NII Article ID
- 10026406213
- 130004489728
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- NII Book ID
- AA11822914
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- ISSN
- 18844219
- 13464930
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- NDL BIB ID
- 10632096
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed