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논문 기본 정보

자료유형
학술대회자료
저자정보
Chen Xin (Hanyang University) Liu Jin (Hanyang University) Erfan Zal Nezhad (Hanyang University)
저널정보
대한기계학회 대한기계학회 춘추학술대회 대한기계학회 2016년도 학술대회
발행연도
2016.12
수록면
2,524 - 2,528 (5page)

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초록· 키워드

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In view of the increasingly serious problems of oily waste water treatment, this paper encompasse d development structure parametric and operating condition of defiling hydrocyclone by CFD simulation. The large eddy simulation was used to calculate the hydrocyclones of different structures. The main aim was to study the effects of different structure sizes and operating conditions on the performances of hydrocyclone. The results showed that in the straight pipe hydrocyclone and taper pipe hydrocyclone, the pressure and flowing radius were positively correlated. The pressure decreased with the reducing of the flowing radius, and the pressure reaches the lowest point at the central axis part. If tangential speed increased, the centrifugal force would be strengthened which can help oil drop move to the center part. Therefore, the separation efficiency was improved. On the contrary, the separation efficiency would decrease. However, it was not true that the bigger the tangential speed was, the better it was. If the tangential speed was too fast, the shear stress borne by the oil drop would increase which may cause the oil drop breakage and would aggravate the oil drop emulsification. This was not benefit to improve the separation efficiency. The oil and water separation effect of the taper pipe hydrocyclone was better than that of straight pipe hydrocyclone.

목차

Abstract
1. Introduction
2. The governing equations
3. Calculation model and boundary conditions
4. The discussions and analysis
5. Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2017-550-002052011