CIESC Journal ›› 2020, Vol. 71 ›› Issue (3): 974-982.DOI: 10.11949/0438-1157.20190867
• Fluid dynamics and transport phenomena • Previous Articles Next Articles
Dong SUN,Haifeng LU,Jiakun CAO,Yuting WU,Xiaolei GUO,Xin GONG()
Received:
2019-07-31
Revised:
2019-10-10
Online:
2020-03-05
Published:
2020-03-05
Contact:
Xin GONG
通讯作者:
龚欣
基金资助:
CLC Number:
Dong SUN, Haifeng LU, Jiakun CAO, Yuting WU, Xiaolei GUO, Xin GONG. Solid flow rate prediction in hoppers with complicated flow channels[J]. CIESC Journal, 2020, 71(3): 974-982.
孙栋, 陆海峰, 曹嘉琨, 吴雨婷, 郭晓镭, 龚欣. 复杂流道结构料仓的下料流率预测[J]. 化工学报, 2020, 71(3): 974-982.
Material | d32/μm | d43/μm | Span | ρb/(kg·m-3) | AOR/(°) | AIF/(°) |
---|---|---|---|---|---|---|
glass bead-a | 47.22 | 49.43 | 0.56 | 1410 | 28.8 | 19.8 |
glass bead-b | 62.76 | 65.13 | 0.51 | 1404 | 28.3 | 21.2 |
glass bead-c | 75.84 | 120.14 | 0.90 | 1353 | 34.6 | 32.7 |
lignite | 115.63 | 134.12 | 0.88 | 621 | 36.7 | 28.7 |
pvc | 116.36 | 128.61 | 0.73 | 567 | 34.0 | 26.5 |
Table 1 Physical properties of experimental materials
Material | d32/μm | d43/μm | Span | ρb/(kg·m-3) | AOR/(°) | AIF/(°) |
---|---|---|---|---|---|---|
glass bead-a | 47.22 | 49.43 | 0.56 | 1410 | 28.8 | 19.8 |
glass bead-b | 62.76 | 65.13 | 0.51 | 1404 | 28.3 | 21.2 |
glass bead-c | 75.84 | 120.14 | 0.90 | 1353 | 34.6 | 32.7 |
lignite | 115.63 | 134.12 | 0.88 | 621 | 36.7 | 28.7 |
pvc | 116.36 | 128.61 | 0.73 | 567 | 34.0 | 26.5 |
Material | No-In /(g·s-1) | Con-In/ (g·s-1) | Ucon-In /(g·s-1) |
---|---|---|---|
glass bead-a | 45.0 | 53.2 | 52.1 |
glass bead-b | 46.7 | 54.2 | 48.4 |
glass bead-c | 38.8 | 48.7 | 43.0 |
lignite | 13.8 | 21.7 | 18.1 |
pvc | 13.7 | 16.7 | 15.1 |
Table 2 Experimental value of discharge rate
Material | No-In /(g·s-1) | Con-In/ (g·s-1) | Ucon-In /(g·s-1) |
---|---|---|---|
glass bead-a | 45.0 | 53.2 | 52.1 |
glass bead-b | 46.7 | 54.2 | 48.4 |
glass bead-c | 38.8 | 48.7 | 43.0 |
lignite | 13.8 | 21.7 | 18.1 |
pvc | 13.7 | 16.7 | 15.1 |
Material | Experiments/(g·s-1) | Eq. (1)/(g·s-1) | Eq. (3)/(g·s-1) | |RE| of Eq. (1)/% | |RE| of Eq. (3)/% |
---|---|---|---|---|---|
glass bead-a | 45.0 | 52.9 | 45.3 | 14.9 | 0.7 |
glass bead-b | 46.7 | 52.6 | 44.3 | 11.2 | 5.4 |
glass bead-c | 38.8 | 49.7 | 34.7 | 21.9 | 11.7 |
lignite | 13.8 | 22.9 | 17.3 | 39.7 | 20.6 |
pvc | 13.7 | 20.9 | 16.4 | 34.4 | 16.5 |
Table 3 Deviation between experimental value and theoretical value under No-In mode
Material | Experiments/(g·s-1) | Eq. (1)/(g·s-1) | Eq. (3)/(g·s-1) | |RE| of Eq. (1)/% | |RE| of Eq. (3)/% |
---|---|---|---|---|---|
glass bead-a | 45.0 | 52.9 | 45.3 | 14.9 | 0.7 |
glass bead-b | 46.7 | 52.6 | 44.3 | 11.2 | 5.4 |
glass bead-c | 38.8 | 49.7 | 34.7 | 21.9 | 11.7 |
lignite | 13.8 | 22.9 | 17.3 | 39.7 | 20.6 |
pvc | 13.7 | 20.9 | 16.4 | 34.4 | 16.5 |
Material | Experiments/(g·s-1) | Eq. (10)/(g·s-1) | |RE| of Eq. (10) |
---|---|---|---|
glass bead-a | 53.2 | 61 | 12.80% |
glass bead-b | 54.2 | 59.6 | 9.10% |
glass bead-c | 48.7 | 46.7 | 4.20% |
lignite | 21.7 | 23.3 | 6.80% |
pvc | 16.7 | 22 | 24.10% |
Table 4 Deviation between experimental value and theoretical value under Con-In mode
Material | Experiments/(g·s-1) | Eq. (10)/(g·s-1) | |RE| of Eq. (10) |
---|---|---|---|
glass bead-a | 53.2 | 61 | 12.80% |
glass bead-b | 54.2 | 59.6 | 9.10% |
glass bead-c | 48.7 | 46.7 | 4.20% |
lignite | 21.7 | 23.3 | 6.80% |
pvc | 16.7 | 22 | 24.10% |
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