Cement production processes release various odor elements including acetaldehyde, hydrogen sulfide, formaldehyde and toluene etc. A three-dimensional numerical simulation using a commercial code of Computational Fluid Dynamics (CFD) was used to estimate the concentration profiles and dispersion distance around the local residential area. The calcination furnace, one of the main emission sources in the cement manufacturing process, discharged the odorous gases of H₂S, HCHO, CH₃CHO and C6H5CH₃at levels of up to 3.15 ppb, 5.1 ppm, 6.65 ppm and 0.74 ppm of H₂S, HCHO, CH₃CHO and C6H5CH₃respectively. This study found that as for the emission concentration of 1ppm for H₂S and CH₃CHO, the landing distance of the threshold value for each gas was extended in summer seasons at a low velocity. Low temperature of the flue gas at a high velocity also led to long dispersion.

Abstract
 1. 서 론
 2. 연구방법
  2.1 Fluent 모델
  2.2 전산모사를 위한 모델링
  2.3 악취물질 및 공간확산 수치해석
 3. 연구결과 및 고찰
  3.1 기상조건에 따른 악취물질의 거동
  3.2 배출가스 조건에 따른 악취물질의 거동
 4. 결 론
 References

• 박미정(경희대학교 환경응용과학과) | Mi Jung Park (Kyung Hee University, Department of Applied Environmental Science)
• 박영구(강원대학교 환경공학과) | Young Koo Park (Kangwon National University, Department of Environmental Engineering)
• 조영민(경희대학교 환경응용과학과) | Young Min Jo (Kyung Hee University, Department of Applied Environmental Science) Corresponding author