SCR 시스템의 효율적인 운영을 위한 Soot Blowing 방법에 대한 해석적 연구

Title
SCR 시스템의 효율적인 운영을 위한 Soot Blowing 방법에 대한 해석적 연구
Other Titles
Computational Study on the Soot Blowing Method for Enhancing the Performance of the SCR System
Author(s)
장혁상서문혁
Keywords
Soot blower; SCR(selective catalytic reduction); CFD(computational fluid dynamics); Catalyst regeneration; Turbulence
Issue Date
201209
Publisher
한국입자에어로졸학회
Citation
PARTICLE AND AEROSOL RESEARCH, v.8, no.3, pp.99 - 110
Abstract
In the SCR (selective catalytic reduction) system which is used for controlling the NOx emission from the Diesel engines, the soot deposited on the catalysis causes degradation of the system performance. Numerical study was done to evaluate the performance of soot blower which is proposed as a method for removing the soot on the catalysis. The spray conditions and the effect of the compressed air from the AIG (air inlet gun) were analyzed numerically to evaluate the overall effective method of the soot blowing. The characteristics of the final velocity distribution and velocity waves across the inlet section of the catalysis were evaluated with respect to the geometries of the AIG outlets and pressure conditions. An experimental model was used to validate the results of the numerical calculation that is used for finding the effective removal blowing momentum transfer quantities of soot the inlet section of the catalysis, and it is proposed that the required minimum blowing momentum transfer quantities are over than 0.499 khgh/m.teff. in the current study.
URI
http://hdl.handle.net/YU.REPOSITORY/27195
ISSN
1738-8716
Appears in Collections:
공과대학 > 환경공학과 > Articles
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