저탄장 시설에 설치된 방풍벽 높이에 따른 비산탄진 확산특성에 관한 수치해석Numerical Investigation on Influence of Windbreak Wall Height on Dust Scattering Characteristics
- Authors
- 정찬호; 이진운; 신동환; 김명민; 이성혁
- Issue Date
- 2014
- Publisher
- 한국액체미립화학회
- Keywords
- Windbreak wall; Coal storage pile; Computational fluid dynamics; Scattering dust; 방풍력; 저탄장; 전산유체해석; 비산분진
- Citation
- 한국액체미립화 학회지, v.19, no.3, pp 136 - 141
- Pages
- 6
- Journal Title
- 한국액체미립화 학회지
- Volume
- 19
- Number
- 3
- Start Page
- 136
- End Page
- 141
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/13108
- DOI
- 10.15435/JILASSKR.2014.19.3.136
- ISSN
- 1226-2277
- Abstract
- This study reports numerically the characteristics of dust scattering around the coal storage pile yards, substantially affected by the windbreak wall height. The dust scattering is closely associated with the frictional effect of wind flows as well as the pressure variation that consequently affect the dust particle behavior. In the present study, with the use of the commercial code of FLUENT, the distribution of wind velocity and pressure are predicted around coal storage pile yard for four different heights of the wind break wall. From the results, it was found that for the case 1 with the outer windbreak wall height of 3 m and inner windbreak wall height of 6 m, the amount of scattering dust for a year was estimated to be 1451 kg, whereas for the case 4 where a height of outer windbreak wall is 10 m and a height of inner windbreak wall is 16 m, the amount of scattering dust for a year was 358 kg. It shows that the dust scattering can be reduced by 75%, indicating important role of windbreak wall height on particle scattering. The numerical results would be useful in decision of the appropriate height of windbreak wall for decreasing the amount of scattering dust under various environmental conditions.
This study reports numerically the characteristics of dust scattering around the coal storage pile yards, substantially affected by the windbreak wall height. The dust scattering is closely associated with the frictional effect of wind flows as well as the pressure variation that consequently affect the dust particle behavior. In the present study, with the use of the commercial code of FLUENT, the distribution of wind velocity and pressure are predicted around coal storage pile yard for four different heights of the wind break wall. From the results, it was found that for the case 1 with the outer windbreak wall height of 3 m and inner windbreak wall height of 6 m, the amount of scattering dust for a year was estimated to be 1451 kg, whereas for the case 4 where a height of outer windbreak wall is 10 m and a height of inner windbreak wall is 16 m, the amount of scattering dust for a year was 358 kg. It shows that the dust scattering can be reduced by 75%, indicating important role of windbreak wall height on particle scattering. The numerical results would be useful in decision of the appropriate height of windbreak wall for decreasing the amount of scattering dust under various environmental conditions.
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