Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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An Experimental Study on Bubbles Growth on Microheater

마이크로 히터에서의 기포 생성에 관한 실험적 연구

  • 고승현 (한국과학기술연구원 열유동제어센터) ;
  • 김신규 (한국과학기술연구원 열유동제어센터) ;
  • 김호영 (한국과학기술연구원 열유동제어센터) ;
  • 장영수 (한국과학기술연구원 열유동제어센터) ;
  • 이윤표 (한국과학기술연구원 열유동제어센터)
  • Published : 2003.04.23
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Abstract

Bubble growth on microheater has been experimentally investigated in this study. The experiment was performed using platinum micro heaters having dimensions of $100{\times}10{\times}0.2{\mu}m^3$ with constant heat flux. A high speed video camera was used to observe bubble growth at 250 frames per second. Microheater temperature was measured at the rate of 300Hz with a data acquisition system. When heater temperature was $139^{\circ}C$ a bubble was nucleated in the liquid FC-72. The temperature profiles and the high speed camera images were combined to explain heat transfer and bubble growth on microheater.

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