Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
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Velocity and Flow Friction Characteristic of Working Fluid in Stirling Engine Regenerator (I) - Velocity Characteristic of Working Fluid in Stirling Engine Regenerator -

스털링기관 재생기내의 작동유체 유속 및 마찰저항 특성(I) - 작동유체 유속 특성 -

  • Kim, T.H. (Dept. of Bio-industry Machinery Engineering, Kyungpook National University) ;
  • Choi, C.R. (Dept. of Bio-industry Machinery Engineering, Kyungpook National University)
  • Published : 2007.12.25
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Abstract

The power output of the stirling engine is influenced by the regenerator effectiveness. The regenerator effectiveness is influenced by heat transfer and flow friction loss of the regenerator matrix. In this paper, in order to provide basic data for the design of the regenerator matrix, characteristics of working fluid velocities were investigated by a packed method of matrix in the oscillating flow as the same condition of operation in a Stirling engine. As matrices, two different wire screens were used. The results are summarized as follows; 1. When a regenerator is not filled with any wire screen, working fluid velocity of the oscillating flow shows 1.3 times faster than that of one directional flow. 2. When a regenerator is filled with the wire screen of No.50, working fluid velocity of the oscillating flow reveals 2.5 times faster than that of one directional flow. 3. When a regenerator is filled with the wire screen of No. 100, working fluid velocity of the oscillating flow shows 2 times faster than that of one directional flow, regardless of the number of packed wire screens. 4. Working fluid velocity is decreased wire the increase in number of meshes and packed wire screens.

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References

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