Solar Energy (태양에너지)

The Korean Solar Energy Society (한국태양에너지학회)
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Experimental Study to Nozzle of Vortex Tube

보텍스튜브의 노즐에 대한 실험적 연구

  • Riu, K.J. (Department of Mechanical Engineering, Kyung-Pook National University) ;
  • Bang, C.H. (Graduate School, Kyung-Pook National University)
  • 유갑종 (경북대학교 공과대학 기계공학부) ;
  • 방창훈 (경북대학교 대학원 기계공학부)
  • Published : 1999.12.30
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Abstract

The phenomena of energy separation through the vortex tube was investigated experimentally, to see the effect of nozzle area ratio and partial admission rate on the energy separation and cooling capacity. The experiment was tarried out with various nozzle area ratios from 0.031 to 0.232 and partial admission rate from 0.176 to 0.956 by varying input pressure($0.2{\si\m}0.5$ MPa) and cold air mass fraction($y=0.1{\sim}1.0$). From the experimental result, we found the optimum nozzle area ratio and the effective partial admission rate for the available use and best cooling performance in given operation condition. While the maximum drop of cold air temperature was observed at around y=0.3 and $S_n=0.155$, the maximum cooling capacity was observed at around y=0.6 and $S_n=0.094$.

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