Application of a Drag Reduction Phenomenon Caused by Surfactant Solutions

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Takashi Saeki¹ 

[1] Department of Environmental Science and Engineering, Graduate School of Science and Engineering, Yamaguchi University

关键词: Air Conditioning System;    Cooling Operation;    Drag Reduction;    Heat Transfer;    Analogy;   

DOI  :  10.1252/jcej.13we086

来源: Maruzen Company Ltd

【 摘 要 】

References(14)Cited-By(1)In 1994, the first commercial application of surfactant drag reduction was conducted in Japan for the air conditioning system in the Shunan Regional Industry Promotion Center building. A commercially available drag-reducing additive (LSP-01) based on the mixture of a cationic surfactant, a counter ion, and corrosion inhibitors was developed based on the results of the project. Since 1995, LSP-01 has been used at more than 180 sites in building air conditioning systems throughout Japan. The drag-reducing technique was adopted recently for an air conditioning system in a skyscraper in Tokyo. Here, I measured the drag reduction and heat transfer characteristics during the cooling operation of a heat exchanger for a surfactant and a counter ion system, Ethoquad O/12 and NaSal. The analogy between the momentum and heat transfer for the drag-reducing flow is also discussed.

【 授权许可】

Unknown