Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Study on flow characteristics in entrained flow gasifier with high speed impinging jet

고속충돌노즐을 이용한 분류층 가스화기내의 유동특성에 관한 연구

  • Published : 1996.05.01
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Abstract

An entrained flow gasifier simulating the cold mode was tested to estimate its performance for coal gasification and flow characteristics with a developed high speed impinging jet nozzle. The burner was designed for high temperature and high pressure(HTHP) conditions, especially for IGCC(Integrated Coal Gasification Combined Cycle). In order to get proper size of droplets for high viscous liquid such as coal slurry, atomization was achieved by impacting slurry with high speed (over 150m/sec) secondary gas (oxygen/or air)/ Formed water droplets were ranged between 100.mu.m to 20.mu.m in their sizes. The flow characteristics in the gasifier was well understood in mixing between fuel and oxidizer. Both external and internal recirculation zones were closely investigated through experimentation with visualization and numerical solutions from FLUENT CODE.

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References

  1. The Effect of Injector Desing on the Performance of the Brigham Young University Sowa, W. A.
  2. Western States Conference The Sensitivity of Entrained Flow Coal Gasification Burners to Changes in Inlet Boundary Conditions Sowa, W. A.;Hadman, P. O.;Smoot, L. D.
  3. Western States Conference The Sensitivity of Entrained-Flow Coal Gasification Diffusion Burners to Changes in Geometry Sowa, W. A.;Hadman, P. O.;Smoot, L. D.
  4. A Computer Code for Swirling Turbulent Axisymmetric Recirculating Flows in Practical Isothermal Combustor Geometries Lilley, D. G;Rhode, D. L.
  5. Predictions and Measurements of Isothermal Flow-fields in Axisymmetric combustor Geometries Rhode, D. L.; Lilley, D. G
  6. An Engineering Assessment of Entrainment Gasification Larry, A. Bisset
  7. Coal Combustion and Gasification Smoot, L.D.;Smith, P. J.
  8. 대한기계학회 '95 춘계학술대회 논문집 v.2 난류 모델에 따른 분류층 가스화기내 유동장해석 연구 안달홍;김종진;박호영;이효진
  9. Fluent User’s Manual (Version 3.02) Fluent Inc.
  10. Atomization and Sprays Lefebre, A. H.
  11. 석탄가스화 운전특성 실험 및 오리 멀젼 가스화 연구 박태준;김재호;이효진(외)