Structure Optimization of Cyclone Separator Based on CFD-DPM

doi:10.12096/j.2096-4528.pgt.20043

Abstract

Abstract:

The CFD-DPM (computational fluid dynamics-discrete particle model) and the response surface methodology has been performed to optimize the geometrical ratios of cyclone separator. The research results illustrate that the most significant geometrical parameter is the vortex finder diameter. Other four factors have significant effects on the cyclone performance viz., the inlet width, inlet height, the cyclone total height, and the vortex finder length. In addition, there were strong interactions between the effect of the inlet width and inlet height, inlet dimensions and the vortex finder diameter on the pressure drop. There were strong interactions between the effect of the vortex finder diameter and inlet height, the vortex finder length and the cyclone total height on the separation efficiency. Finally, a new set of geometrical ratios was obtained to achieve minimum pressure drop and maximum separation efficiency. When the value of a/D, b/D, D_x/D, H/D, S/D was 0.40, 0.26, 0.34, 6.28, 0.66, respectively, the minimum pressure drop was 2.32kPa and the maximum separation efficiency was 99.27%.

Key words: cyclone separator, geometrical parameters, separation efficiency, pressure drop, computational fluid dynamics (CFD)

CLC Number:

TK09
TM621

Li PENG, Zhansheng SHI, Fang DONG. Structure Optimization of Cyclone Separator Based on CFD-DPM[J]. Power Generation Technology, 2021, 42(3): 343-349.

Figures/Tables 11

References 28

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方差来源	压降
方差来源	平方和	自由度	均方差	F值	p值
X₁	672.212 9	1	672.212 9	54.671 31	< 0.000 1
X₂	678.300 7	1	678.300 7	55.166 44	< 0.000 1
X₃	1 818.758	1	1 818.758	147.920 3	< 0.000 1
X₄	17.690 24	1	17.690 24	1.438 753	0.240 0
X₅	0.158 723	1	0.158 723	0.012 909	0.910 3
X₁-X₂	293.975 9	1	293.975 9	23.909 16	< 0.000 1
X₁-X₃	665.374 3	1	665.374 3	54.115 13	< 0.000 1
X₁-X₄	1.204 433	1	1.204 433	0.097 957	0.756 5
X₁-X₅	0.011 277	1	0.011 277	0.000 917	0.976 0
X₂-X₃	698.967 4	1	698.967 4	56.847 27	< 0.000 1
X₂-X₄	0.371 875	1	0.371 875	0.030 245	0.863 1
X₂-X₅	0.001 622	1	0.001 622	0.000 132	0.990 9
X₃-X₄	16.389 57	1	16.389 57	1.332 969	0.257 7
X₃-X₅	0.107 307	1	0.107 307	0.008 727	0.926 2
X₄-X₅	0.030 965	1	0.030 965	0.002 518	0.960 3
X₁²	0.092 961	1	0.092 961	0.007 561	0.931 3
X₂²	0.056 972	1	0.056 972	0.004 634	0.946 2
X₃²	84.079 37	1	84.079 37	6.838 205	0.014 0
X₄²	0.133 192	1	0.133 192	0.010 833	0.917 8
X₅²	0.096 224	1	0.096 224	0.007 826	0.930 1
R²	0.941 8

方差来源	压降
方差来源	平方和	自由度	均方差	F值	p值
X₁	672.212 9	1	672.212 9	54.671 31	< 0.000 1
X₂	678.300 7	1	678.300 7	55.166 44	< 0.000 1
X₃	1 818.758	1	1 818.758	147.920 3	< 0.000 1
X₄	17.690 24	1	17.690 24	1.438 753	0.240 0
X₅	0.158 723	1	0.158 723	0.012 909	0.910 3
X₁-X₂	293.975 9	1	293.975 9	23.909 16	< 0.000 1
X₁-X₃	665.374 3	1	665.374 3	54.115 13	< 0.000 1
X₁-X₄	1.204 433	1	1.204 433	0.097 957	0.756 5
X₁-X₅	0.011 277	1	0.011 277	0.000 917	0.976 0
X₂-X₃	698.967 4	1	698.967 4	56.847 27	< 0.000 1
X₂-X₄	0.371 875	1	0.371 875	0.030 245	0.863 1
X₂-X₅	0.001 622	1	0.001 622	0.000 132	0.990 9
X₃-X₄	16.389 57	1	16.389 57	1.332 969	0.257 7
X₃-X₅	0.107 307	1	0.107 307	0.008 727	0.926 2
X₄-X₅	0.030 965	1	0.030 965	0.002 518	0.960 3
X₁²	0.092 961	1	0.092 961	0.007 561	0.931 3
X₂²	0.056 972	1	0.056 972	0.004 634	0.946 2
X₃²	84.079 37	1	84.079 37	6.838 205	0.014 0
X₄²	0.133 192	1	0.133 192	0.010 833	0.917 8
X₅²	0.096 224	1	0.096 224	0.007 826	0.930 1
R²	0.941 8

方差来源	分离效率
方差来源	平方和	自由度	均方差	F值	p值
X₁	143.685 2	1	143.685 2	10.253	0.003 3
X₂	1 183.933	1	1 183.933	84.482 42	< 0.000 1
X₃	12 889	1	12 889	919.726 2	< 0.000 1
X₄	1 371.283	1	1 371.283	97.851 24	< 0.000 1
X₅	2 149.359	1	2 149.359	153.372 8	< 0.000 1
X₁-X₂	259.129 9	1	259.129 9	18.490 84	0.000 2
X₁-X₃	182.393 9	1	182.393 9	13.015 16	0.001 1
X₁-X₄	84.059 79	1	84.059 79	5.998 291	0.020 6
X₁-X₅	11.041 43	1	11.041 43	0.787 888	0.382 0
X₂-X₃	799.229	1	799.229	57.030 93	< 0.000 1
X₂-X₄	200.280 2	1	200.280 2	14.291 48	0.000 7
X₂-X₅	4.042 441	1	4.042 441	0.288 458	0.595 3
X₃-X₄	787.197 1	1	787.197 1	56.172 37	< 0.000 1
X₃-X₅	719.664	1	719.664	51.353 38	< 0.000 1
X₄-X₅	516.370 8	1	516.370 8	36.846 89	< 0.000 1
X₁²	0.454 944	1	0.454 944	0.032 464	0.858 3
X₂²	104.954 7	1	104.954 7	7.489 298	0.010 5
X₃²	17.108 32	1	17.108 32	1.220 806	0.278 3
X₄²	22.067 05	1	22.067 05	1.574 648	0.219 6
X₅²	2.411 547	1	2.411 547	0.172 082	0.681 3
R²	0.932 7

方差来源	分离效率
方差来源	平方和	自由度	均方差	F值	p值
X₁	143.685 2	1	143.685 2	10.253	0.003 3
X₂	1 183.933	1	1 183.933	84.482 42	< 0.000 1
X₃	12 889	1	12 889	919.726 2	< 0.000 1
X₄	1 371.283	1	1 371.283	97.851 24	< 0.000 1
X₅	2 149.359	1	2 149.359	153.372 8	< 0.000 1
X₁-X₂	259.129 9	1	259.129 9	18.490 84	0.000 2
X₁-X₃	182.393 9	1	182.393 9	13.015 16	0.001 1
X₁-X₄	84.059 79	1	84.059 79	5.998 291	0.020 6
X₁-X₅	11.041 43	1	11.041 43	0.787 888	0.382 0
X₂-X₃	799.229	1	799.229	57.030 93	< 0.000 1
X₂-X₄	200.280 2	1	200.280 2	14.291 48	0.000 7
X₂-X₅	4.042 441	1	4.042 441	0.288 458	0.595 3
X₃-X₄	787.197 1	1	787.197 1	56.172 37	< 0.000 1
X₃-X₅	719.664	1	719.664	51.353 38	< 0.000 1
X₄-X₅	516.370 8	1	516.370 8	36.846 89	< 0.000 1
X₁²	0.454 944	1	0.454 944	0.032 464	0.858 3
X₂²	104.954 7	1	104.954 7	7.489 298	0.010 5
X₃²	17.108 32	1	17.108 32	1.220 806	0.278 3
X₄²	22.067 05	1	22.067 05	1.574 648	0.219 6
X₅²	2.411 547	1	2.411 547	0.172 082	0.681 3
R²	0.932 7

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