界面活性剤水溶液流れの伝熱促進(熱輸送・伝熱促進,熱工学部門一般講演)

概要

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In surfactant solution (TTAB+NaSal), the pipe friction factor and heat transfer coefficients were investigated. The straight circular tube of D=5.05 mm in diameter and L=2900 mm in total length was used. In the drag reduction flow, in order to break micelle structures and to promote heat transfer, the "micelle breaker" was installed in the upper stream of the testsection. As a result of the experiments, in surfactant solution (lOOOppm), compared with the case of water, the friction factor decreased 74% in Re=21000, and NuPr^<-1/3> decreased 78%. However, installation of the micelle breaker increased NuPr^<-1/3> by 2.6 times compared with the case where it does not install. Although the effect of drag reduction disappeared by micelle breaker, it was mostly recovered in the measurement section.
社団法人日本機械学会の論文
2004-09-04