Numerical simulations on flow and particle behaviors in the upper part of a syngas cooler for IGCC

IGCC 합성가스 냉각기 상부의 열유동 및 입자거동 특성에 대한 전산해석 연구

  • 박상빈 (성균관대학교 기계공학부) ;
  • 예인수 (성균관대학교 기계공학부) ;
  • 류창국 (성균관대학교 기계공학부) ;
  • 김봉근 (두산중공업 IGCC 개발팀)
  • Published : 2012.11.30

Abstract

The syngas produced from coal gasification is cooled down for gas cleaning by a syngas cooler that produces steam. Due to the presence of fly slag in the syngas, erosion, slagging and corrosion especially in the upper part of the syngas cooler may cause major operational problems. This study investigates the flow, heat transfer and particle behaviors in the syngas cooler of a 300MWe IGCC plant by using computational fluid dynamics. For various operational loads and geometry, the gas and particle flows directly impinged on the wall opposite to the syngas inlet, which may lead to erosion of the membrane wall. In the evaporate channels inside the syngas cololr, the particle flows were concentrated more on the outer channel where slagging becomes more serious. The heat transfer to the wall was mainly by convection which was larger on the side wall below the inlet level.

Acknowledgement

Grant : 한국형 300MW급 IGCC 실증 플랜트 기술개발사업

Supported by : 한국에너지기술평가원(KETEP)