Drag reduction due to nonionic-type surfactants in turbulent pipe flow of ethylene glycol aqueous solution
The drag-reducing effects of two nonionic-type surfactants, oleyl-N, N-dimethylamine N-oxide (ODMAO) and octadecyl-N, N-bis(2-hydroxyethyl)amine N-oxide (C18BAO), in ethylene glycol (EG) aqueous solution were comprehensively investigated at various surfactant concentrations of up to 2000 ppm by weig...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2022-05-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0088652 |
| _version_ | 1818534342387826688 |
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| author | Shinji Tamano Keijiro Taga Taku Watanabe Yuki Matsui Yohei Morinishi Toru Yamada |
| author_facet | Shinji Tamano Keijiro Taga Taku Watanabe Yuki Matsui Yohei Morinishi Toru Yamada |
| author_sort | Shinji Tamano |
| collection | DOAJ |
| description | The drag-reducing effects of two nonionic-type surfactants, oleyl-N, N-dimethylamine N-oxide (ODMAO) and octadecyl-N, N-bis(2-hydroxyethyl)amine N-oxide (C18BAO), in ethylene glycol (EG) aqueous solution were comprehensively investigated at various surfactant concentrations of up to 2000 ppm by weight at various solution temperatures ranging from −5 to 80 °C in turbulent pipe flows. In EG aqueous solution (30% by weight), the mixture of ODMAO with salicylic acid with a molar ratio of 0.2 could effectively reduce the turbulent drag in the low-temperature range (up to 40 °C), whereas the effect of C18BAO was more notable at a temperature higher than 40 °C. Furthermore, the mixture of ODMAO and C18BAO in EG aqueous solution exhibited a high drag reduction ratio of more than 60% in a considerably wider range of solution temperatures (from 20 to 60 °C), while the drag reduction performance deteriorated below 0 °C and beyond 60 °C. |
| first_indexed | 2024-12-11T18:10:25Z |
| format | Article |
| id | doaj.art-14788e205cf14722b3c202befaa9a56b |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-11T18:10:25Z |
| publishDate | 2022-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-14788e205cf14722b3c202befaa9a56b2022-12-22T00:55:35ZengAIP Publishing LLCAIP Advances2158-32262022-05-01125055109055109-1210.1063/5.0088652Drag reduction due to nonionic-type surfactants in turbulent pipe flow of ethylene glycol aqueous solutionShinji Tamano0Keijiro Taga1Taku Watanabe2Yuki Matsui3Yohei Morinishi4Toru Yamada5Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, JapanGraduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, JapanGraduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, JapanGraduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, JapanGraduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, JapanGraduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, JapanThe drag-reducing effects of two nonionic-type surfactants, oleyl-N, N-dimethylamine N-oxide (ODMAO) and octadecyl-N, N-bis(2-hydroxyethyl)amine N-oxide (C18BAO), in ethylene glycol (EG) aqueous solution were comprehensively investigated at various surfactant concentrations of up to 2000 ppm by weight at various solution temperatures ranging from −5 to 80 °C in turbulent pipe flows. In EG aqueous solution (30% by weight), the mixture of ODMAO with salicylic acid with a molar ratio of 0.2 could effectively reduce the turbulent drag in the low-temperature range (up to 40 °C), whereas the effect of C18BAO was more notable at a temperature higher than 40 °C. Furthermore, the mixture of ODMAO and C18BAO in EG aqueous solution exhibited a high drag reduction ratio of more than 60% in a considerably wider range of solution temperatures (from 20 to 60 °C), while the drag reduction performance deteriorated below 0 °C and beyond 60 °C.http://dx.doi.org/10.1063/5.0088652 |
| spellingShingle | Shinji Tamano Keijiro Taga Taku Watanabe Yuki Matsui Yohei Morinishi Toru Yamada Drag reduction due to nonionic-type surfactants in turbulent pipe flow of ethylene glycol aqueous solution AIP Advances |
| title | Drag reduction due to nonionic-type surfactants in turbulent pipe flow of ethylene glycol aqueous solution |
| title_full | Drag reduction due to nonionic-type surfactants in turbulent pipe flow of ethylene glycol aqueous solution |
| title_fullStr | Drag reduction due to nonionic-type surfactants in turbulent pipe flow of ethylene glycol aqueous solution |
| title_full_unstemmed | Drag reduction due to nonionic-type surfactants in turbulent pipe flow of ethylene glycol aqueous solution |
| title_short | Drag reduction due to nonionic-type surfactants in turbulent pipe flow of ethylene glycol aqueous solution |
| title_sort | drag reduction due to nonionic type surfactants in turbulent pipe flow of ethylene glycol aqueous solution |
| url | http://dx.doi.org/10.1063/5.0088652 |
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