The Influence of Impurities in a Water Solution with Drag Reducing Surfactants on the Flow Drag-Reduction and a Recovering Method of Its Decreased Drag Reduction Effect.
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- NAKATA Toru
- Oppama Research Laboratories, Toho Chemical Industry Co. , Ltd.
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- SATO Kenji
- Oppama Research Laboratories, Toho Chemical Industry Co. , Ltd.
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- INABA Hideo
- Department of Mechanical Engineering, Okayama University
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- HORIBE Akihiko
- Department of Mechanical Engineering, Okayama University
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- HARUKI Naoto
- Department of Mechanical Engineering, Okayama University
Bibliographic Information
- Other Title
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- 界面活性剤による管内流動抵抗低減効果に及ぼす水中成分の影響および効果減少回復法
- カイメン カッセイザイ ニ ヨル カン ナイ リュウドウ テイコウ テイゲン コウカ ニ オヨボス スイチュウ セイブン ノ エイキョウ オヨビ コウカ ゲンショウ カイフクホウ
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Description
The drag reduction of a water flow with new drag reducing surfactants (amine oxide type nonionic surfactants, mixtures of amine oxide type nonionic surfactants and betaine type amphoteric surfactants) which were selected as environmentally acceptable drag reducing additives was investigated experimentally. <br> Addition of amine oxide type nonionic surfactants to hot or cold water can reduce flow drag in a turbulent pipe flow. The present research investigated how various ionic components dissolved in water affected this drag reducing effect. <br> It was found that ionic impurities contained in the water affected the pipe flow drag reducing effect by amine oxide type nonionic surfactants. Moreover, it was clarified that the decrease in the pipe flow drag reducing effect was recovered by adding a mixture of amine oxide type nonionic surfactants and betaine type amphoteric surfactant to the water with ionic impurities.
Journal
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- Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers
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Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers 21 (1), 33-43, 2004
Japan Society of Refrigerating and Air Conditioning Engineers
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Details 詳細情報について
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- CRID
- 1390001204665834496
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- NII Article ID
- 130004566017
- 10012932852
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- NII Book ID
- AA11125910
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- ISSN
- 2185789X
- 13444905
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- NDL BIB ID
- 6915797
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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