Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Droplet Size and Thermal conductivity Measurements of Binary Nanoemulsion

이성분 나노에멀전의 입도 및 열전도도 측정

  • Cho, Chang-Hwan (Department of Mechanical Engineering graduate school, Kyung Hee University) ;
  • Sul, Hea-Youn (Department of Mechanical Engineering graduate school, Kyung Hee University) ;
  • Jung, Jung-Yeul (School of Mechanical and Industrial Systems Engineering, Kyung Hee University) ;
  • Kang, Yong-Tae (School of Mechanical and Industrial Systems Engineering, Kyung Hee University)
  • 조창환 (경희대학교 기계공학과) ;
  • 설혜연 (경희대학교 기계공학과) ;
  • 정정열 (경희대학교 기계산업시스템공학부) ;
  • 강용태 (경희대학교 기계산업시스템공학부)
  • Published : 2009.06.25
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Abstract

Binary nanoemulsions which are defined as the, oil-droplet suspensions in binary solution ($H_2O$/LiBr), are developed to enhance the heat and mass transfer performance of absorption refrigeration systems. In this study, a novel two-step method is proposed to prepare the stable oil-in-binary solution (O/S) emulsion. Polymer is used as a steric stabilizer to stabilize the oil-droplets in a strong electrolyte ($H_2O$/LiBr). It is found that the thermal conductivity of the binary nanoemulsion is inversely proportional to the emulsion size while the concentrations of oil and $H_2O$/LiBr are less dominant for the thermal conductivity of binary nanoemulsions.

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