Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Analysis of Temperature Distribution of Solid and Gas in the Rotary Cooler

회전냉각기에서 고체와 가스의 온도분포해석

  • 이만승 (대전대학교 공과대학 신소재공학과) ;
  • 최주석 (대전대학교 공과대학 기계공학과) ;
  • 전철근 (대전대학교 공과대학 기계공학과)
  • Published : 2002.06.01
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Abstract

Heat transfer occurring in the rotary cooler was analyzed by applying a one-dimensional steady state. The temperature of inlet gas and the measured temperature of outlet gas were used as boundary conditions. Axial temperature distribution of solid, gas and wall were calculated by solving two differential equations and two algebraic equations under the constraint of two point boundary conditions and operating conditions. The temperatures of outer wall calculated in this study were in good agreement with those measured from running rotary cooler.

회전냉각기에서 일어나는 정상상태 열전달을 1차원으로 해석하였다 회전냉각기로 입력되고 배출되는 공기온도를 경계조건으로 삼았다. 경계 및 조업조건으로부터 2개의 상미분방정식과 2개의 대수방정식을 동시에 만족시키는 해를 계산하여 고체, 공기 벽의 온도분포를 구하였다. 본 연구에서 계산한 외벽온도는 실제 가동중인 회전냉각기에서 실측한 외벽온도와 서로 잘 일치하였다.

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References

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