대한설비공학회:학술대회논문집 (Proceedings of the SAREK Conference)

대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

고분자물질 및 계면활성제의 유동마찰 저감 특성 비교 연구

A Comparison Study on Flow-Friction Characteristic of Polymer Solution and Surfactant as Drag Reduction Additive

  • 하재순 (전주대학교 대학원) ;
  • 유재성 (전주대학교 대학원) ;
  • 김성수 (전주대학교 기계자동차공학과) ;
  • 조성환 (전주대학교 기계자동차공학과) ;
  • 윤석만 (한국지역난방공사 기술연구) ;
  • 엄재식 (한국지역난방공사 기술연구)
  • Ha, Jae-Sun (Graduate student, Jeonju University) ;
  • Ryu, Jae-Sung (Graduate student, Jeonju University) ;
  • Kim, Seong-Su (Department of Mechanical and Automotive Engineering, Jeonju University) ;
  • Cho, Sung-Hwan (Department of Mechanical and Automotive Engineering, Jeonju University) ;
  • Yoon, Seok-Mann (Disstrict Heating Technology Research Institute, Korea District Heating Corp) ;
  • Eom, Jae-Sik (Disstrict Heating Technology Research Institute, Korea District Heating Corp)
  • 발행 : 2009.06.25
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초록

The drag reduction(DR) for Betaine+Amin and Xantan Gum as kinds of surfactant and Polyacrylamide as kinds of polymer solution according to the fluid velocity, temperature and surfactant concentration were compared experimentally. For this study, two kinds of experimental apparatus for short time and long time measurement were established. Each experimental appratus was equipped with hot water storage tanks, pumps, testing pipe network, flowmeter, two pressure gauges and data logging system was built for them. Results showed that Betaine+Amin and Xanthan Gum as kinds of surfactant had appeared optimal DR around 200-500 ppm and their DR tended to be decreased when flow velocity increased but Polyacrylamide as kinds of polymer solution showed the opposite trend to be increased when flow velocity increased. The both of them showed above 40% DR in the case of better condition by the short term measurement. But Polyacrylamide as kinds of polymer solution showed more degradation than Betaine+Amin and Xanthan Gum as kinds of surfactant by the long term measurement. As a result, Betaine+Amin and Xanthan Gum as kinds of surfactant showed better materials to use to the district heating system.

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