単管熱交換器の動特性と共振現象 : 第2報, 管壁と流体との熱容量比の影響

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  • Dynamic Response and Resonance Phenomena of a Single-Solid, Sinle-Fluid Heat Exchangers : Part II, Influence of the Wall-Fluid Heat-Capacity Ratio
  • タンカン ネツコウカンキ ノ ドウトクセイ ト キョウシン ゲンショウ 2

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This paper deals with the dynamic response of a single-solid, single-fluid heat exchanger to the sinusoidal disturbances, which are (i) uniformly distributed heat generation in the solid wall, (ii) uniformly distributed wall temperature, (iii) uniformly distributed heat generation in the flowing fluid, and (iv) fluid inlet temperature in the heat exchanger having a constant heat generation in the solid wall. Analytical results for both the transient-periodic and frequency responses are presented. These results include the response of the wall and fluid temperatures and the wall-fluid temperature difference. A phenomenon of resonance in the amplitude-ratio and phase-shift is disclosed. The influence of the wall-fluid heat-capacity ratio on the dynamic response and resonance phenomena is discussed in detail.

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