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슬래깅 예측을 위한 전산해석 모델 개발 및 검증에 관한 연구

Title
슬래깅 예측을 위한 전산해석 모델 개발 및 검증에 관한 연구
Authors
장권우
Date Issued
2014
Publisher
포항공과대학교
Abstract
The slagging is the major problem of the power station during pulverized coal combustion. For an accurate ash deposit prediction, it is necessary to be preceded a numerical simulation of pulverized coal combustion. I used PC Coal LAB to gain constants for devolatilization model and char oxidation model, CBK/E model. In this study, UDF(User Define Function) based on FLUENT was developed to predict a ash deposit propensity. The ash deposit model was based on inertial impaction in the ash deposit mechanism. Experiment data from the Korea Electric Power Research Institute (KEPRI) pilot-scale furnace have been used to validate ash deposit model. In Models of ash viscosity, Kalmanovitch-Urbain model is shown a most appropriate model as a ash viscosity model in this study.
URI
http://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000001679422
http://oasis.postech.ac.kr/handle/2014.oak/2228
Article Type
Thesis
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