Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Stability Analysis of Marangoni Convection for $NH_3\;-H_2O$ Absorption Process

전파이론을 통한 $NH_3\;-H_2O$ 흡수과정의 마란고니 대류 안정성 해석

  • 최창균 (서울대학교 응용화학부) ;
  • 김제익 (서울대학교 응용화학부) ;
  • 강용태 (경희대학교 기계산업시스템공학부)
  • Published : 2002.06.01
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Abstract

Convective instability driven by surface tension is analyzed in an initially quiescent water absorbing ammonia gas using the linear stability theory. The propagation theory is adapated to find the critical conditions of the onset of solutal Maragoni convection. In this theory, the solutal penetration depth is chosen as the length scale factor. The results show that the liquid layer becomes more stable with decreasing the Schmidt number It is interesting that for a smaller Biot number than 100, the system becomes stable with decreasing Bi but for a larger Bi, it becomes unstable with decreasing Bi.

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References

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