Abstract
This paper presents the results of an experimental study for a method of increasing the efficiency of electrostatic precipitators for the collection of fly ash particles of submicron size. An alternating electric field was used to induce agglomeration of bipolarly charged particles (bipolar AC-agglomeration). A bench-scale AC-agglomeration test apparatus with bipolar corona charger was constructed. Test aerosol was generated from vegetable oil. The total mass loading was 0.2 gm−3 (5 × 106 particles cm−3), mass median diameter was 0.5 μm. Count median diameter was 0.2 μm, and geometrical standard deviation was 1.8. Residence time in the agglomerator was 4.8 s and the agglomerator field was 5.0 kV cm−1 (rms). Systematic experiments were conducted to investigate the agglomeration efficiency of the system. The percentage decrease in number concentration of 0.1–1.0 μm sized particles was found to be between 17 and 19%.
| Original language | English |
|---|---|
| Pages (from-to) | 303 - 315 |
| Number of pages | 13 |
| Journal | Journal of Electrostatics |
| Volume | 38 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1996 |
| MoE publication type | A1 Journal article-refereed |
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Bipolar charged aerosol agglomeration with alternating electric field in laminar gas flow. / Laitinen, Antero (Corresponding Author); Hautanen, Jukka; Keskinen, Jorma; Kauppinen, Esko; Jokiniemi, Jorma; Lehtinen, Kari.
In: Journal of Electrostatics, Vol. 38, No. 4, 1996, p. 303 - 315.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Bipolar charged aerosol agglomeration with alternating electric field in laminar gas flow
AU - Laitinen, Antero
AU - Hautanen, Jukka
AU - Keskinen, Jorma
AU - Kauppinen, Esko
AU - Jokiniemi, Jorma
AU - Lehtinen, Kari
PY - 1996
Y1 - 1996
N2 - This paper presents the results of an experimental study for a method of increasing the efficiency of electrostatic precipitators for the collection of fly ash particles of submicron size. An alternating electric field was used to induce agglomeration of bipolarly charged particles (bipolar AC-agglomeration). A bench-scale AC-agglomeration test apparatus with bipolar corona charger was constructed. Test aerosol was generated from vegetable oil. The total mass loading was 0.2 gm−3 (5 × 106 particles cm−3), mass median diameter was 0.5 μm. Count median diameter was 0.2 μm, and geometrical standard deviation was 1.8. Residence time in the agglomerator was 4.8 s and the agglomerator field was 5.0 kV cm−1 (rms). Systematic experiments were conducted to investigate the agglomeration efficiency of the system. The percentage decrease in number concentration of 0.1–1.0 μm sized particles was found to be between 17 and 19%.
AB - This paper presents the results of an experimental study for a method of increasing the efficiency of electrostatic precipitators for the collection of fly ash particles of submicron size. An alternating electric field was used to induce agglomeration of bipolarly charged particles (bipolar AC-agglomeration). A bench-scale AC-agglomeration test apparatus with bipolar corona charger was constructed. Test aerosol was generated from vegetable oil. The total mass loading was 0.2 gm−3 (5 × 106 particles cm−3), mass median diameter was 0.5 μm. Count median diameter was 0.2 μm, and geometrical standard deviation was 1.8. Residence time in the agglomerator was 4.8 s and the agglomerator field was 5.0 kV cm−1 (rms). Systematic experiments were conducted to investigate the agglomeration efficiency of the system. The percentage decrease in number concentration of 0.1–1.0 μm sized particles was found to be between 17 and 19%.
U2 - 10.1016/S0304-3886(96)00038-1
DO - 10.1016/S0304-3886(96)00038-1
M3 - Article
VL - 38
SP - 303
EP - 315
JO - Journal of Electrostatics
JF - Journal of Electrostatics
SN - 0304-3886
IS - 4
ER -