J. Inst. Electrostat. Jpn.

, 30, 2 (2006) 89 94㕒㔚ᬀᲫ㔚ᭂ䉕↪䈇䈢㔚᳇㓸䈛䉖ⵝ⟎䈮䈍䈔䉎ࠨࡉࡒࠢࡠࡦ☸ሶߩ᝝㓸ലᨐᚑ ᄺ␵  Ahmed ALY*㧘 ᧘ ᚑ⪇  㜞ፉ ๺ೣ 㧘᩵ㅴม  㧘᳓㊁ᓆ 㧔2005 ᐕ 8 ᦬ 4 ᣣฃઃ㧧2006 ᐕ 3 ᦬ 7 ᣣฃℂ㧕Fine Particles Collection Using an Electrostatic Precipitator Equipped withElectrostatic Flocking Electrodes as Collecting Plates
Bong-Jo SUNG*, Ahmed ALY*, Sung-Hwa LEE***, Kazunori TAKASHIMA*,Shinji KATSURA*,**and Akira MIZUNO*1(Received August 4, 2005; Accepted March 7, 2006)

In recent, special environmental concern is directed towards controlling the emission of fine particles (from 0.1 to1.0 ঙ) . These fine particles possibly cause serious health hazard because of heavy metals and toxic compounds
adsorbed on the particles. To improve the collection efficiency of fine particles, electrostatic flocking technique has
been employed in this study. This technique is based on increasing surface area of the collecting electrode and on
producing gradient force at the tip of fibers to suppress reentrainment. In this article, an experimental study wasperformed to evaluate the effect of fine fiber on the collection efficiency of fine particles using the ESP withelectrostatic flocking electrodes as collecting plates. The ESP achieved collection efficiency over 94%, which was
higher than that of the flat plate electrode for fine particles (0.3 0.5 ঙ in diameter) with a short residence time (0.06s). We confirmed that fine particles agglomerated at the tip of the flocking fibers. These results indicate that the newtype ESP examined in this study is effective to improve removal performance of fine particles.
૕ౝ䈮ข䉍ㄟ䉁䉏䉎䈖䈫䈪ᷓೞ䈭ஜᐽ਄䈱໧㗴䉕䉅䈢䉌䈜䈖䈫䈏 ߪߓ߼ߦᜰ៰䈘䉏䈩䈇䉎 㪈㪄㪊㪀㪅 ᓥ䈦䈩㪃 ⓨ᳇ਛ䈮ᶋㆆ䈚䈩䈇䉎䈖䉏䉌䈱ᓸᄢ᳇ਛ䈮䈲᭽䇱䈭☸ᓘ䈱ᓸ☸ሶ䈏ᶋㆆ䈚䈩䈇䉎㪅 䈠䈱ਛ䈪䉅㪃☸ሶ䉕ᓢ෰䈜䉎䈖䈫䈏㕖Ᏹ䈮㊀ⷐ䈪䈅䉎㪅㩷 䈖䉏䉌䈱ᓸ☸ሶ䈱㒰☸ᓘ䈏 㪈 ঙએਅ䈱ᓸ☸ሶ䈲๭ๆེ䉕ㅢ䈚䈩⢖⢩䈮ઃ⌕䈜䉎น෰ᛛⴚ䈫䈚䈩㪃 㔚᳇㓸䈛䉖ⵝ⟎㩿㪜㫃㪼㪺㫋㫉㫆㫊㫋㪸㫋㫀㪺㩷 㪧㫉㪼㪺㫀㫇㫀㫋㪸㫋㫆㫉㪑㪜㪪㪧㪀㪃⢻ᕈ䈏㜞䈒㪃 ੱ૕䈮䈫䈦䈩᦭ኂᕈ䈏ᄢ䈐䈇䈫䈘䉏䈩䈇䉎㪅 䉁䈢㪃Ḩᑼ䉴䉪䊤䊋䊷㪃㩷 䊋䉫䊐䉞䊦䉺䈭䈬䈏↪䈇䉌䉏䈩䈇䉎㪅㩷 䈠䈱ਛ䈪☸ሶ⴫㕙䈮ๆ⌕䈚䈢㊀㊄ዻ䈭䉌䈶䈮᦭ኂ‛⾰䈏๭ๆ䈮䉋䈦䈩䉅㪃 㔚᳇㓸䈛䉖ⵝ⟎䈲㪃 ઁ䈱㒰෰ᛛⴚ䈫Ყ䈼㪃 ૐ䈇࿶ജ៊ᄬ䈪㜞ല₸䈱㓸䈛䉖䈏น⢻䈪䈅䉍㪃 ᄢኈ㊂䈱Ꮏ႐ឃ䉧䉴䈱ᵺൻ㪃 ૑ࠠ࡯ࡢ࡯࠼䋺㔚᳇㓸䈛䉖ⵝ⟎㪃 㕒㔚ᬀᲫ㔚ᭂ㪃 䉰䊑䊚䉪䊨䊮☸
ሶ㪃 䉫䊧䊷䊂䉞䉣䊮䊃ജ㪃 ౣ㘧ᢔ㩷㪁⼾ᯅᛛⴚ⑼ቇᄢቇ䉣䉮䊨䉳䊷Ꮏቇ♽䋨㪋㪋㪈㪄㪏㪌㪏㪇 ᗲ⍮⋵⼾ᯅᏒᄤષ↸㔕㓴䊱ਐ 㪈㪄㪈䋩㩷㪛㪼㫇㫋㪅㩷 㪜㪺㫆㫃㫆㪾㫀㪺㪸㫃 㪜㫅㪾㪅㪃㩷 㪫㫆㫐㫆㪿㪸㫊㪿㫀㩷 㪬㫅㫀㫍㪼㫉㫊㫀㫋㫐㫆㪽 㪫㪼㪺㪿㫅㫆㫃㫆㪾㫐㪃㩷㪈㪄㪈 㪫㪼㫄㫇㪸㫂㫌㪄㪺㪿㫆㪃㩷㪫㫆㫐㫆㪿㪸㫊㪿㫀 㪋㪋㪈㪄㪏㪌㪏㪇㩷㪡㪸㫇㪸㫅㪁㪁⟲㚍ᄢቇᎿቇㇱ↢‛ൻቇᎿቇ⑼䋨㪊㪎㪍㪄㪏㪌㪈㪌 ⟲㚍⋵᩿↢Ꮢᄤ␹↸ 㪈㪄㪌㪄㪈䋩㪛㪼㫇㫋㪅 㪙㫀㫆㫃㫆㪾㫀㪺㪸㫃㩷㪸㫅㪻㩷㪚㪿㪼㫄㫀㪺㪸㫃㩷㪜㫅㪾㪅㪃㩷㪞㫌㫅㫄㪸㩷㪬㫅㫀㫍㪼㫉㫊㫀㫋㫐㪃㩷㪢㫀㫉㫐㫌㪃㩷㪫㪼㫅㫁㫀㫅㪄㪺㪿㫆㩷㪈㪄㪌㪄㪈㪃㩷㪊㪎㪍㪄㪏㪌㪈㪏㪃㩷㪡㪸㫇㪸㫅㩷㪁㪁㪁㪣㪞 㔚ሶ㪩㪼㫊㪼㪸㫉㪺㪿 㪣㪸㪹㫆㫉㪸㫋㫆㫉㫐㪃㩷 㪛㫀㪾㫀㫋㪸㫃 㪘㫇㫇㫃㫀㪸㫅㪺㪼 㪚㫆㫄㫇㪸㫅㫐㪃 㪣㪞㩷㪜㫃㪼㪺㫋㫉㫆㫅㫀㪺㫊㪃 㪊㪐㪈㪄㪉㪃㩷 㪞㪸㪼㫌㫄㫁㪼㫆㫅㪾㪄㪻㫆㫅㪾㪃㩷 㪚㪿㪸㫅㪾㫎㫆㫅 㪚㫀㫋㫐㪃㩷㪞㫐㪼㫆㫅㪾㫅㪸㫄㪃㩷㪍㪋㪈㪄㪎㪈㪈㪃㪢㫆㫉㪼㪸㩷㪈㫄㫀㫑㫌㫅㫆㪗㪼㪺㫆㪅㫋㫌㫋㪅㪸㪺㪅㫁㫇ዬⓨ㑆䈱ⓨ᳇ᵺൻ䈭䈬㪃 ቶౝⓨ᳇ᵺൻ䈎䉌↥ᬺᣉ⸳䈱឵᳇ⵝ⟎䉁䈪᏷ᐢ䈒೑↪䈘䉏䈩䈇䉎㪅 ৻⥸䈮㔚᳇㓸䈛䉖ⵝ⟎䈲 㪐㪐㩼એ਄䈱㜞䈇㓸䈛䉖₸䉕᦭䈚䈩䈇䉎䈏㪃 ☸ᓘ⚂ 㪇㪅㪈㫣㪈㪅㪇 ঙ䈱☸ሶ䈮ኻ䈚䈩㓸䈛䉖₸䈏ૐ䈒䈭䉎㗔ၞ䋨㫇㪼㫅㪼㫋㫉㪸㫋㫀㫆㫅 㫎㫀㫅㪻㫆㫎䋩䈏ሽ࿷䈜䉎㪉㪃㪌㪄㪍㪀㪅㩷 䈖䈱㓸䈛䉖₸ૐਅ䈲㪃㩷 䉰䊑䊚䉪䊨䊮☸ሶ䈱⩄㔚₸䈏ૐਅ䈚☸ሶ䈱㔚᳇⊛⒖േᐲ䈏ᷫዋ䈜䉎䈢䉄䈪䈅䉎 㪉㪃㪋㪄㪍㪀㪅㩷 䉁䈢㪃㩷 ☸ሶ䈱⷗䈎䈔਄䈱㔚᳇ᛶ᛫₸䈏ዊ䈘䈇႐ว䈲㓸䈛䉖㔚ᭂ䈎䉌䈱ౣ㘧ᢔ䈮䉋䉎㓸䈛䉖₸䈱ૐਅ䉅໧㗴䈫䈭䉎㪅㩷 ౣ㘧ᢔ⃻⽎䈲㓸䈛䉖㔚ᭂ਄䈮ઃ⌕䈚䈢☸ሶ䈏᳇ᵹ䈭䈬䈱ᓇ㗀䈪ౣ䈶䉧䉴ਛ䈮㘧ᢔ䈜䉎⃻⽎䈪䈅䉎㪅 㔚᳇㓸䈛䉖ⵝ⟎䈮䈍䈔䉎䈖䈱䉋䈉䈭໧㗴ὐ䉕స᦯䈜䉎䈢䉄䈮㪃 ᓸ☸ሶಝ㓸ⵝ⟎䉕↪䈇䈢䉰䊑䊚䉪䊨䊮☸ሶ䈱㓸䈛90 (32)3022006䉖₸䈱ะ਄ 㪌㪄㪍㪀㪃㩷 䉧䉴ਛ䈮᳓ಽ䈭䈬䈱ᷝട೷䉕ട䈋䈩ౣ㘧ᢔ䉕㒐ᱛ䈜䉎䈖䈫䈭䈬㪃 ᄙ䈒䈱⎇ⓥ䈏ⴕ䉒䉏䈩䈇䉎 㪎㪄㪏㪀㪅 ᧄ⎇ⓥ䈪䈲
Metal Mesh plate㔚᳇㓸䈛䉖ⵝ⟎䈮䈍䈔䉎䉰䊑䊚䉪䊨䊮☸ሶ䈱㓸䈛䉖₸䉕ะ਄䈜䉎䈢䉄䈮એਅ䈱ੑ䈧䈱ὐ䈮⌕⋡䈚䈢㪅 㩿㪈㪀㓸䈛䉖㔚ᭂ⴫㕙䈮䊌䉟䊦䉕㕒㔚ᬀᲫ䈜䉎䈖䈫䈪䊌䉟䊦వ┵ㇱ䈮㔚⇇䈏㓸ਛ䈜䉎䈢䉄㪃㓸䈛䉖䈘䉏䈢ᓸ☸ሶ䈏䉫䊧䊷䊂䉞䉣䊮䊃ജ䈮䉋䈦䈩᛼䈘䈋䈧䈔䉌䉏㪃 ౣ㘧ᢔ䉕⿠䈖䈚䈮䈒䈒䈭䉎น⢻ᕈ䈏䈅䉎㪅㩷 㩿㪉㪀䉁䈢㪃 㓸䈛䉖㔚

Nylon Pile

ᭂ䈱㕙Ⓧ䈏Ⴧട䈜䉎䈖䈫䉇㪃 䈠䈱⴫㕙䈮ᒻᚑ䈘䉏䉎ᓸ⚦䈭ⓨ㑆

Aluminum plate䈱ਛ䈪䈱ⓨ᳇䈱ᵹ䉏䈏Ⓩ䉇䈎䈮䈭䉎䈢䉄㪃㩷 ᓸ☸ሶ䉕ᯏ᪾⊛䈮଻ᜬ䈚䉇䈜䈒䈭䉎น⢻ᕈ䈏䈅䉎㪅 䈖䈱㔚᳇㓸䈛䉖ⵝ⟎䉕↪䈇䈩
Fig.1 A schematic illustration of the preparation of㔚࿶㪄㔚ᵹ․ᕈ㪃 䉰䊑䊚䉪䊨䊮☸ሶ䈱㓸䈛䉖ᕈ⢻෸䈶㓸䈛䉖䈘䉏electrostatic flocking electrode.

䈢☸ሶ䈱⁁ᘒ䉁䈢䈲᳇ᵹਛ䈮䈍䈔䉎☸ሶ᜼േ䉕ታ㛎⊛䈮ᬌ⸛䈚䈢㪅㩷 ታ

Metal mesh after electrostatic
flocking using nylon fibers㛎 㕒㔚ᬀᲫߩේℂᐔ᧼㔚ᭂ㑆䈮⋥ᵹ㔚࿶䉕ශട䈜䉎䈫㔚ᭂ㑆䈮㔚⇇䈏ᒻᚑ䈘䉏㪃 㔚ᭂ਄䈮⟎䈎䉏䈢❫⛽⁁䈱⺃㔚૕䊌䉟䊦䈲㔚⇇ਛ䈪ಽᭂ

Metal mesh before electrostaticflocking䈚㪃 䈠䈱ਔ┵䈮ಽᭂ㔚⩄䉕↢䈝䉎㪅㩷 ಽᭂ䈱⚿ᨐ㪃⺃㔚૕䊌䉟䊦䈲㔚⇇ᣇะ䈮㈩ะ䈜䉎㪅 䈘䉌䈮⺃ዉᏪ㔚䈘䉏㪃 ኻะ㔚ᭂ䈱ᣇะ

Fig.2 A photograph of electrostatic flocking electrode.

䈻䉪䊷䊨䊮ജ䈏૞↪䈜䉎㪅 㕒㔚ᬀᲫ䈲䈖䉏䉌䈱ജ䉕೑↪䈚䈩ၮ⋚䈮ု⋥䈮❫⛽䉕ᬀᲫ䈜䉎䉅䈱䈪䈅䉎㪅 ଀䈋䈳㪃 ਅㇱ㔚ᭂ਄䈮䈱㊄ዻ✂㩿㪉㪇 䊜䉾䉲䊠㪃 ෘ䈘 㪈㫄㫄㪀෸䈶䉝䊦䊚䊆䉡䊛᧼䈪䈅䉎㪅 㔚⟎䈎䉏䈢䊅䉟䊨䊮䊌䉟䊦䈮⽶䈱㔚⩄䉕ਈ䈋䉎䈫㪃 䊅䉟䊨䊮䊌䉟䊦ᭂ㑆〒㔌䈲 㪊㪌㫄㫄 䈮⸳ቯ䈚䈢㪅 㕖ዉ㔚ᕈ䈱วᚑ᮸⢽ធ⌕೷䉕䈮䉪䊷䊨䊮ജ䈏૞↪䈚䈩ធ࿾㔚ᭂ䈪䈅䉎ၮ᧚䈻ะ䈎䈦䈩㘧⠍䉕ဋ৻䈮ႣᏓ䈚䈢㊄ዻ✂䉕਄ㇱ㔚ᭂ䈮࿕ቯ䈚㪃㩷 䊅䉟䊨䊮䊌䉟䊦䉕㐿ᆎ䈜䉎㪅㩷 ၮ᧚਄䈮䈅䉌䈎䈛䉄ធ⌕೷䉕⭯䈒ဋ৻䈮ႣᏓ䈚䈩䈍ਅㇱ㔚ᭂ਄䈮⟎䈇䈢㪅 䈭䈍㪃 䊌䉟䊦䈱㘧⠍ᕈ෸䈶ዉ㔚ᕈઃਈ䈔䈳㪃 䈠䈖䈮೔㆐䈚䈢䊌䉟䊦䈲ၮ᧚⴫㕙䈮ု⋥䈮࿕ቯ䈘䉏䉎㪅䈱䈢䉄䈮ᧄ⎇ⓥ䈪䈲૕Ⓧᛶ᛫₸ 㪈㪇㪏㩷 㷧㫄 એਅ䈱䊅䉟䊨䊮䊌䉟䊦䉕↪䈇䈢㪅㩷 䊅䉟䊨䊮䊌䉟䊦䈱⋥ᓘ䈲⚂ 㪉㪇 ঙ㪃㩷 㐳䈘 㪈㫄㫄 䈪䈅䉎㪅 㕒㔚ᬀᲫ㔚ᭂ⵾૞⋥ ᵹ 㔚 Ḯ ⵝ ⟎ 㩿㪟㪅㪭 㪩㪜㪞㪬㪣㪘㪫㪜㪛㩷 㪛㪅㪚㩷 㪧㪦㪮㪜㪩㩷 㪪㪬㪧㪧㪣㪰㩷㕒㔚ᬀᲫ㓸䈛䉖㔚ᭂ䈱⵾૞䈮↪䈇䈢ⵝ⟎䈱᭎⇛䉕 㪝㫀㪾㪅㪈 䈮㪤㪦㪛㪜㪣㪄㪌㪇㪉㪃㩷 㪧㫌㫃㫊㪼㩷 㪜㫃㪼㪺㫋㫉㫆㫅㫀㪺㩷 㪜㫅㪾㫀㫅㪼㪼㫉㫀㫅㪾㩷 㪚㫆㪅㩷 㪣㫋㪻㪀䉕↪䈇䈩␜䈜㪅㩷 ਄ㇱ㔚ᭂ䈫ਅㇱ㔚ᭂ䈲䈠䉏䈡䉏 㪍㪇㫄㫄㬍㪈㪉㪇㫄㫄 䈱ᄢ䈐䈘㪈㪇㫂㪭 䈱⽶ᭂᕈ㔚࿶䉕 㪊㪇 ⑽㑆ශട䈚䈩䊅䉟䊨䊮䊌䉟䊦䉕㘧⠍䈘Particle generator
Heating dryer
Dust counter

Sampling probe

Flow meter

Straw pipes

Nebuilizer

InAir flow

TestedOutESPStraighten part

BlowerFig. 3 Experimental set up for collection efficiency.

91 (33)

䈞㊄ዻ✂䈮ᬀᲫ䈚㪃 䈖䈱㊄ዻ✂䉕㓸䈛䉖㔚ᭂ䈫䈚䈢㪅 䈖䈱㓸䈛䉖㓸䈛䉖㔚ᭂ䈮䈧䈇䈩ශട㔚࿶䈫䉮䊨䊅᡼㔚㔚ᵹ䈫䈱㑐ଥ䉕㔚ᵹ㔚ᭂ䈱౮⌀䉕 㪝㫀㪾㪅 㪉 䈮␜䈜㪅⸘㩿㪛㫀㪾㫀㫋㪸㫃 㪤㫌㫃㫋㫀㫄㪼㫋㪼㫉㩷㪠㪮㪘㪫㪪㪬 㪭㪦㪘㪚㩷㪏㪍㪃㩷㪠㪮㪘㪫㪪㪬㪜㫃㪼㪺㫋㫉㫀㪺 㪚㫆㪅㪃㩷㪣㫋㪻㪀䉕↪䈇䈩᷹ቯ䈚䈢㪅㩷 ታ㛎ⵝ⟎᭎ⷐ㩷㪝㫀㪾㪅㪊 䈮ታ㛎䉲䉴䊁䊛䈱᭎⇛࿑䉕␜䈜㪅 ⵝ⟎䈲ㅍ㘑ㇱ㪃 ᢛᵹ ࠨࡉࡒࠢࡠࡦ☸ሶߩ㓸ߓࠎᕈ⢻᷹ቯㇱ䋨ሹ䈱⋥ᓘ 㪊㫄㫄㪃 㐳䈘 㪈㪇㫄㫄 䈱䉴䊃䊧䊷䊅䊷䋩㪃 䊈䊑䊤䉟䉱䊷䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䈫㕒㔚ᬀᲫ㔚ᭂ䉕↪䈇䈢㔚᳇㓸䈛䉖ⵝ䋨䉥䊛䊨䊮⵾㪃㩷 㪥㪜㪄㪚㪙㩿䉮䊮䊒䊧䉾䉰䊷ᑼ㪀䋩䈍䉋䈶ടᾲⵝ⟎䉕↪

⟎䈮䉋䉎䉰䊑䊚䉪䊨䊮☸ሶ䈱㓸䈛䉖ᕈ⢻䈱Ყセ䉕 㪝㫀㪾㪅㪊 䈮␜䈜ታ䈇䈢☸ሶ⊒↢ㇱ㪃 ታ㛎↪㔚᳇㓸䈛䉖ⵝ⟎㪃 ☸ᓘ೎䈱୘ᢙỚᐲ㛎䉲䉴䊁䊛䈪ⴕ䈦䈢㪅 ᢛᵹㇱ౉䉍ญ䈮䈍䈇䈩Ⱟశ☸ሶ䉇䉺䊋䉮䉕᷹ቯ䈜䉎䉻䉴䊃䉦䉡䊮䉺䋨䉻䊮⑼ቇ㪃 㪏㪉㪄㪈㪏㪇㪇䋩䈪᭴ᚑ䈘䉏䈩䈇ᾍ䉕᳇ᵹ䈮ᷙว䈚䈩㔚᳇㓸䈛䉖ⵝ⟎䈮ଏ⛎䈚䈢㪅 㓸䈛䉖₸䈲㪃䉎㪅 䉻䉪䊃䈱ᢿ㕙Ⓧ䈲 㪐 ঞ䈪䈅䉎㪅 ㅍ㘑ㇱ䈎䉌䉪䊥䊷䊮䊦䊷䊛ౝ㔚᳇㓸䈛䉖ⵝ⟎ㅢㆊ೨ᓟ䈱☸ሶ୘ᢙỚᐲ䉕䉻䉴䊃䉦䉡䊮䉺䈮䉋䉍䈱ቶ᳇䈫ታ㛎↪ᓸ☸ሶ䉕䉻䉪䊃ౝ䈮ଏ⛎䈚㪃㩷 ᢛᵹㇱ䉕ㅢㆊ䈘䈞᷹ቯ䈚㪃 㩿㪈㪀ᑼ䈮䉋䉍⸘▚䈚䈢㪅 䈢䈣䈚㪃 ☸ሶ୘ᢙỚᐲ䈮䈍䈔䉎᷹䈩৻᭽䈭ⓨ᳇䈱ᵹ䉏䉕૞䈦䈢㪅 䉻䉪䊃ౝㇱ䈱᳇ᵹㅦᐲ䈲ᵹㅦ⸘ቯ☸ᓘ䈲 㪇㪅㪊㫣㪇㪅㪌 ঙ䈫䈚䈢㪅䋨㪢㪘㪥㪦㪤㪘㪯 㪤㪦㪛㪜㪣 㪍㪊㪈㪈䋩䉕↪䈇䈩᷹ቯ䈚 㪈㫄㪆㫊㪃 㔚᳇㓸䈛䉖ᵹ಴஥ᓸ☸ሶỚᐲ㓸䈛䉖₸䋽 㩿䋱䋭㩷ⵝ⟎ౝㇱ䈪䈱ṛ⇐ᤨ㑆䉕 㪇㪅㪇㪍㫊 䈮⸳ቯ䈚䈢㪅 㪝㫀㪾㪅㪋 䈮䈲ෘ䈘 㪊㫄㫄㪀㬍㪈㪇㪇㩿㩼㪀㩷 㩿㪈㪀ᵹ౉஥ᓸ☸ሶỚᐲ䈱䉝䉪䊥䊦ᐔ᧼䉕↪䈇䈩⵾૞䈚䈢❑ 㪍㪇㫄㫄㪃㩷 ᮮ 㪊㪍㫄㫄㪃 㜞䈘 㪊㪍㫄㫄䈱㔚᳇㓸䈛䉖ⵝ⟎䈱⹦⚦䉕␜䈜㪅㩷 㔚᳇㓸䈛䉖ⵝ⟎䈱᡼㔚㔚ᭂ䈫䈚䈩䉴䊁䊮䊧䉴✢㩿⋥ᓘ 㪇㪅㪈㫄㫄㪀䉕↪䈇㪃 㓸䈛䉖㔚ᭂ䈮䈲䉝䊦䊚䉁䈢㪃㩷 Ⱟశᓸ☸ሶ䉕↪䈇䈩㓸䈛䉖㔚ᭂ਄䈮䉰䊑䊚䉪䊨䊮☸ሶ䈏䊆䉡䊛ᐔ᧼㩿䉝䊦䊚䊁䊷䊒㪀㔚ᭂ㩿㪘㫃㫌㫄㫀㫅㫌㫄 㪽㫃㪸㫋㩷 㫇㫃㪸㫋㪼㪃㩷 㪘㪅㪝㪅㪧㪅㩷㓸䈛䉖䈘䉏䉎᭽ሶ䉕ⷰኤ䈚䈢㪅 㔚ᭂ਄䈮㓸䈛䉖䈘䉏䈢Ⱟశᓸ☸

㪜㫃㪼㪺㫋㫉㫆㪻㪼㪀䈅䉎䈇䈲㕒㔚ᬀᲫ㔚ᭂ㩿㪜㫃㪼㪺㫋㫉㫆㫊㫋㪸㫋㫀㪺 㪽㫃㫆㪺㫂㫀㫅㪾㪃 㪜㪅㪝㪅㩷ሶ䉕ୟ┙ဳ⪭኿Ⱟశⷰኤⵝ⟎㩿㪠㪯㪄㪝㪣㪘㪃㪦㪣㪰㪤㪧㪬㪪㪀䈪ⷰኤ䈚䈢㪅㩷

Acryl plate of 3mm thickness ታ㛎⚿ᨐ෸߮ᬌ⸛ 㔚࿶̃ 㔚ᵹ․ᕈ

36mm60mm

㪝㫀㪾㪅㪌 䈮ᧄ⎇ⓥ䈪↪䈇䈢㕒㔚ᬀᲫ㔚ᭂ෸䈶䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䈱㔚࿶㵧㔚ᵹ․ᕈ䉕␜䈜㪅 䈭䈍㪃 ታ㛎䈲᷷ᐲ 㪊㪉㷄⋧ኻḨ

Airflow
36mm

H.V. (-dc)Stainless steel wireᐲ 㪍㪇㩼䈱᧦ઙ䈪ⴕ䈦䈢㪅 ⽶ᭂᕈ㔚࿶䉕ශട䈚䈢႐ว䈇䈝䉏䈱㔚(Diameter 0.1mm)ᭂ䉕↪䈇䈢႐ว䉅 㪌㪅㪌㫂㪭 䈎䉌䉮䊨䊅᡼㔚䈏㐿ᆎ䈚㪅 㪈㪊㫂㪭 એ਄䈪Ἣ⧎᡼㔚䈏⿠䈖䈦䈢㪅 䉮䊨䊅㔚ᵹ䈲䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䈮Ყ

E.E.Electrode orA.F.P.Electrod
Front View

350

Side View

300

Fig.4 Schematic diagram of tested ESP.

᧼㔚ᭂ䈱႐ว 㪈㪌㫄㫄㪃 㕒㔚ᬀᲫ㔚ᭂ䈲 㪈㪊㫄㫄 䈪䈅䉎㪅 ታ㛎䈮䈲䉰䊑䊚䉪䊨䊮☸ሶ䈫䈚䈩Ⱟశ☸ሶ 㩿㪝㫃㫌㫆㫉㪼㫊㪹㫉㫀㫋㪼 㪤㫌㫃㫋㪽㫃㫌㫆㫉㪼㫊㪺㪼㫅㫋⋥ᓘ 㪇㪅㪌 ঙ 㪤㫀㪺㫉㫆㫊㫇㪿㪼㫉㪼㫊㪀䈫䉺䊋䉮ᾍ䉕↪䈇䈢㪅 Ⱟశ☸ሶ䉕↪䈇䈢ታ㛎䈪䈲Ớᐲ 㪊㪅㪐㬍㪈㪇㪈㪈 ୘㪆㫄㪣 䈱Ⱟశ☸ሶ䉕⚐᳓䈪 㪋㪇㪇㪇 ୚䈮Ꮧ㉼䈚㪃㩷 䊈䊑䊤䉟䉱䊷䉕↪䈇䈩ྃ㔵㪃㩷 䈠䈱䊚䉴䊃䉕ੇ῎䈘䈞䉎䈖䈫䈮䉋䉍☸ሶ䉕᳇ᵹਛ䈮ዉ౉䈚䈢㪅㩷

Current(µA䯵250㪜㫃㪼㪺㫋㫉㫆㪻㪼㪀䉕↪䈇䈩Ყセ䉕ⴕ䈦䈢㪅 㔚ᭂ㑆〒㔌䈲䉝䊦䊚䊆䉡䊛ᐔ

200

E.F. Electrode
Gap=13mm
A.F.P. Electrode
Gap=15mm
A.F.P. Electrode
Gap=13mm

150
100
50
00 1 2 3 4 5 6 7 8 9 10 11 12 13 㔚࿶㔚ᵹ․ᕈ᷹ቯ

Applied Voltage(- kV)㪝㫀㪾㪅㪋 䈮␜䈜㔚᳇㓸䈛䉖ⵝ⟎䈮ኻ䈚䈩⽶ᭂᕈ㔚࿶䉕ශട䈚㪃ฦ
Fig. 5 Voltage-Current Characteristics.

92 (34)

30

22006

䈼䈩㕒㔚ᬀᲫ㔚ᭂ䈱ᣇ䈏䉒䈝䈎䈮㜞䈒䈭䈦䈢㪅㩷 䈖䉏䈲㕒㔚ᬀᲫ100㔚ᭂ䈱ᣇ䈏㔚ᭂ㑆〒㔌䈏ዊ䈘䈇䈢䉄㔚⇇ᒝᐲ䈏ᒝ䈒䈭䉍㪃㩷 䉮䊨䈱ᛶ᛫₸䈲ਇ᣿䈪䈅䉎䈏㪃 ቶ᷷䈪䈱ታ㛎䈪䈅䉍㪃 ⋧ኻḨᐲ䉅⚂㪍㪇㩼䈫㜞䈇䈢䉄㕒㔚ᬀᲫ㔚ᭂ䉕↪䈇䈢㔚᳇㓸䈛䉖ⵝ⟎䈮䈍䈇䈩䉅ㅒ㔚㔌䈮䉋䉎䉮䊨䊅㔚ᵹ䈱⇣ᏱჇട䈲↢䈛䈭䈎䈦䈢㪅 䈭䈍㪃䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䉕↪䈇䈩㔚ᭂ㑆〒㔌䉕 㪈㪊㫄㫄 䈫䈚䈢ታ㛎䈱⚿ᨐ䈎䉌㪃 䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䈫㕒㔚ᬀᲫ㔚ᭂ䈱㔚࿶䋭㔚ᵹ․ᕈ䈲䈾䈿ห╬䈣䈦䈢㪅㩷Collection efficiency(%)

䊅㔚ᵹ୯䈏㜞䈒䈭䈦䈢䈢䉄䈪䈅䉎㪅㩷 䊅䉟䊨䊮䊌䉟䊦䈍䉋䈶ធ⌕೷

90
80

E. F. Electrode (- 9kV)

A.F.P. Electrode(- 9kV)

70
60

 ࠨࡉࡒࠢࡠࡦ☸ሶߩ㓸ߓࠎᕈ⢻㓸䈛䉖₸䈍䉋䈶䉮䊨䊅᡼㔚㔚ᵹ䈫ශട㔚࿶䈫䈱㑐ଥ䉕࿑ 㪍 䈮␜䈜㪅 䈭䈍㪃 ᧄታ㛎䈮䈲Ⱟశᓸ☸ሶ䉕૶↪䈚䈢㪅 䈭䈍㪃 ✚୘ᢙ

50
010Ớᐲ䈱 㪐㪐㩼એ਄䈲☸ሶᓘ 㪇㪅㪊 ঙ䈎䉌 㪇㪅㪌 ঙ䉁䈪䈱☸ሶ䈪䈅䉍㪃䈠䈱ೋᦼ୘ᢙỚᐲ䈲⚂ 㪈㪅㪌㪎㬍㪈㪇㪋 ୘㪆㪣 䈪䈅䈦䈢㪅 䉮䊨䊅㔚ᵹ䈱ᄢ䈐䈭䈫䈖䉐䈪䈲䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䉋䉍㕒㔚ᬀᲫ㔚ᭂ䈱ᣇ䈏㓸䈛䉖₸䈲㜞䈒䈭䈦䈢㪅 㕒㔚ᬀᲫ㔚ᭂ䈱႐ว㪃 ශട㔚࿶䈏㪄㪐㪭 䈱ᤨ䈮㓸䈛䉖₸䈲 㪐㪋㩼એ਄䈪䈅䈦䈢㪅 䉁䈢㪃 ශട㔚࿶㪄㪐㫂㪭 䈮䈍䈇䈩㓸䈛䉖₸䈱⚻ᤨᄌൻ䉕⺞䈼䈢㪅㩷 䈠䈱⚿ᨐ䉕 㪝㫀㪾㪅㪎 䈮␜䈜㪅㩷㪈 ᤨ㑆⒟ᐲ䈪䈲㓸䈛䉖₸䈲 㪐㪌䋦⒟ᐲ䈪ᄌൻ䈞䈝㜞䈇㓸䈛䉖₸䉕⛽ᜬ䈜䉎䈖䈫䉕⏕⹺䈚䈢㪅 ৻ᣇ㪃 䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䈱႐ว㪃

2030

405060Operating Time(min)Fig.7 Time-lapse change of collection efficiency.
R.H., 60%; T, 32͠.
㓸䈛䉖₸䈲⚂ 㪏㪐䋦䈪䈅䈦䈢㪅 ᓥ䈦䈩㪃 㕒㔚ᬀᲫ㔚ᭂ䈱㔚᳇㓸䈛䉖ⵝ⟎䉕↪䈇䉎䈖䈫䈪䉰䊑䊚䉪䊨䊮☸ሶ䉕㜞䈇ല₸䈪㓸䈛䉖䈜䉎䈖䈫䈏䈪䈐䉎䈖䈫䈏ಽ䈎䈦䈢㪅 䈖䉏䈲㪃 㔚ᭂ⴫㕙䈮ᬀᲫ䈚䈢䊌䉟䊦䈮䉋䉎㪃 㓸䈛䉖⴫㕙Ⓧ䈱ะ਄䈫䉫䊧䊷䊂䉞䉣䊮䊃ജ䈮䉋䉎ౣ㘧ᢔᛥ೙䈪㪃 㓸䈛䉖₸䈏㜞䈒䈭䈦䈢䈫⠨䈋䉌䉏䉎㪅 ᓟㅀ䈱䉋䈉䈮㕒㔚ᬀᲫవ┵䈮㓸䈛䉖䈘䉏䈢ᓸ☸ሶ䈏ᄙ䈒ⷰኤ䈘䉏䉎䈖䈫䈲㪃 㕒㔚ᬀᲫవ┵ㇱ䈪䈱㔚⇇㓸ਛ䈮䉋䉎䉫䊧䊷䊂䉞䉣䊮䊃ജ䈪☸ሶ䈏

E.F. Electrode
A.F.P. ElectrodeE.F. Electrode C urrent
A.F.P. Electrode C urrent᛼䈘䈋ઃ䈔䉌䉏㪃 ౣ㘧ᢔ䈏ᛥ೙䈘䉏䈩䈇䉎䈫⠨䈋䉌䉏䉎㪅 䉁䈢వ┵ㇱ䈮㓸䈛䉖䈘䉏䉎䈢䉄㪃 ᓸ☸ሶ䈱ಝ㓸⢈ᄢൻ䉅ଦㅴ䈘䉏䉎䉅䈱䈫ᕁ䉒䉏䉎㪅㩷

80100

 㓸ߓࠎߐࠇߚᓸ☸ሶߩⷰኤ

8060
50

60

40

40

30
20

20
05678
9
Applied Voltage(- kV)

10㕒㔚ᬀᲫ㔚ᭂ䈫䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ਄䈮㓸䈛䉖䈘䉏䈢Ⱟశ

Current(µA)

Collection Efficiency(%)

70ᓸ☸ሶ䈱౮⌀䉕 㪝㫀㪾㪅 㪏 䈮␜䈜㪅 䈖䉏䉌䈱౮⌀䈲ශട㔚࿶㪄㪏㫂㪭䈪䋲ᤨ㑆㓸䈛䉖䉕ⴕ䈦䈢ᤨ䈱䉅䈱䈪䈅䉎㪅㩷 㪝㫀㪾㪅㪏㩿㪸㪀䈲᣿ⷞ㊁ᾖ᣿
䈫Ⱟశⷞ㊁䉕⚵䉂ว䉒䈞䈩ᓧ䉌䉏䈢౮⌀䈪䈅䉍㪃 㩿㪹㪀䈲ห৻⹜ᢱ䉕 㪋㪇 ୚䈱ኻ‛䊧䊮䉵䉕↪䈇䈩ᓧ䉌䉏䈢Ⱟశ௝䈪䈅䉎㪅 㩿㪺㪀䈲䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䉕 㪋㪇 ୚䈱ኻ‛䊧䊮䉵䉕↪䈇䈩ⷰኤ䈚䈢Ⱟశ௝

10䈪䈅䉎㪅 㪝㫀㪾㪅㪏㩿㪹㪀㪃㩿㪺㪀䈱Ყセ䈎䉌㪃 䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䈫Ყ䈼㪃0ᬀᲫ䊌䉟䊦వ┵ㇱ䈮䈲ᄢ䈐䈭☸ᓘ䈱☸ሶ䈏ሽ࿷䈜䉎䈖䈫䈏ಽ䈎䉎㪅 䈖䈱䈖䈫䈲 㪊㪅㪉 ▵䈮ㅀ䈼䈢䉋䈉䈮䊌䉟䊦వ┵䈪䈲㔚⇇ᒝᐲ䈏㜞䈇䈢䉄㪃 䉮䊨䊅᡼㔚䈪Ꮺ㔚䈚䈢ᓸ☸ሶ䈏వ┵䈮㓸䈛䉖䈘䉏䉇䈜䈒䈭䉍㪃 䈠䈱䈢䉄䊌䉟䊦వ┵䈪ಝ㓸⢈ᄢൻ䈚䈢䉅䈱䈫⠨䈋䉌䉏

Fig.6 Collection efficiency vs. applied voltage.
R.H., 60%; T, 32͠䉎㪅 䉁䈢㪃 䉫䊧䊷䊂䉞䉣䊮䊃ജ䈪㪃 㓸䈛䉖䈘䉏䈢ᓸ☸ሶ䈏᛼䈘䈋ઃ䈔䉌䉏㪃 ౣ㘧ᢔ䈏ᛥ೙䈘䉏䈢䈫⠨䈋䉌䉏䉎㪅 䈧䈑䈮㪃 䊋䉮ᾍ䉕↪䈇䈩㓸䈛䉖㔚ᭂ䈱㆑䈇䈏ᓸ☸ሶ䈱ᵹ䉏෸䈶㓸䈛䉖䈮෸䈿䈜

93 (35)

H.V. electrode

Smoke particle

Air Flow

Collecting electrode

50um
(a)

Electrostatic flocking fibers visualized(a) Electrostatic flocking electrodeby combination of light field andfluorescent imaging technique

H.V. electrode

Air Flow

Collecting electrode
Smoke particle

Agglomeratedparticles(b) Aluminum flat plate electrode50um

Fig. 9 Photographs of tobacco smoke particles trajectories
in ESP at dc -8kV.

(b) Fluorescent image of the tip of the䈮ኻ䈚䈩䉅㓸䈛䉖₸䈲䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䈫Ყ䈼㪃 㕒㔚ᬀᲫelectrostatic flocking fiber㔚ᭂ䈱ᣇ䈏㜞䈇㓸䈛䉖₸䉕␜䈚䈢㪅 㪝㫀㪾㪅㪐 䈲䉺䊋䉮䈱ᾍ䉕㔚᳇㓸䈛䉖ⵝ⟎ౝ䈮ዉ౉䈚㪃 䊧䊷䉱䊷䈮䉋䉎ᢔੂశ䈪㜞㔚࿶㔚ᭂ䈫㓸䈛䉖㔚ᭂ䈱㑆䈱ᾍ☸ሶ䉕นⷞൻ䈚䈩㪃 㔚᳇㓸䈛䉖䈱᭽ሶ䉕ⷰኤ䈚䈢⚿ᨐ䈪䈅䉎㪅㩷 㕒㔚ᬀᲫ㔚ᭂ䉕↪䈇䈢႐ว䋨㪝㫀㪾㪅㪐䋨㪸䋩䋩㪃 ᾍ☸
ሶ䈲ⵝ⟎ౝ䈮ዉ౉䈘䉏䉎䈫⋥䈤䈮㓸䈛䉖㔚ᭂ਄䈮㓸䈛䉖䈘䉏㪃㓸䈛䉖㔚ᭂ䈱ਛᔃઃㄭ䉋䉍ਅᵹ䈮䈲ᾍ☸ሶ䉕⏕⹺䈜䉎䈖䈫䈲䈪䈐䈭䈎䈦䈢㪅 ৻ᣇ㪃 䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䈱႐ว䋨㪝㫀㪾㪅㪐䋨㪹䋩䋩㪃 㓸50um䈛䉖ⵝ⟎䈱಴ญઃㄭ䈮䉁䈪ᾍ☸ሶ䉕⏕⹺䈜䉎䈖䈫䈏䈪䈐䈢㪅 㕒㔚ᬀᲫ㔚ᭂ䈱႐ว䈫䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䈱႐ว䈪㪃 㔚⇇䈲䈾(c) Fluorescent image of aluminum flat plateelectrode䈿ห䈛䈪䈅䉎䈖䈫䈎䉌㪃 㓸䈛䉖ⵝ⟎౉䉍ญઃㄭ䈱᜼േ䈲ਔ⠪䈫䉅䈮㪃 䈾䈿ห䈛䈪䈅䉎䈫⠨䈋䉌䉏䉎㪅 ᓥ䈦䈩㪃 䉝䊦䊚䊆䉡䊛ᐔ᧼㔚

Fig.8 Microscopic images of fluorescentparticlesᭂ䈮䈍䈇䈩ਛᔃઃㄭ䉋䉍ਅᵹ䈮ⷰኤ䈘䉏䈢ᾍ☸ሶ䈲㪃 㓸䈛䉖㔚

agglomerated on the collecting electrode.

ᭂ䉋䉍ౣ㘧ᢔ䈚䈢☸ሶ㪃㩷 䈅䉎䈇䈲䉟䉥䊮㘑䈱ੂᵹ䈪㔚ᭂ㑆䈮ᚯ䈘䉏䈢☸ሶ䈪䈅䉎䈫⠨䈋䉌䉏䉎㪅 䈖䈱⚿ᨐ䈎䉌㪃 㕒㔚ᬀᲫ㔚ᭂ䉕ᓇ㗀䉕⺞䈼䈢㪅 㓸䈛䉖₸䈲᳇ᵹㅦᐲ 㪈㫄㪆㫊㪃 㔚᳇㓸䈛䉖ⵝ⟎ౝ↪䈇䉎䈫㪃㩷 㓸䈛䉖㔚ᭂ䈎䉌䈱ౣ㘧ᢔ䈏ᛥ೙䈘䉏䉎䈫䈇䈉䈖䈫䈏䉒䈱ᵹ䉏䈱นⷞൻ䈲᷹ⷰⵝ⟎䈱೙⚂䈱䈢䉄 㪇㪅㪈㫄㪆㫊 䈪ታ㛎䉕ⴕ䈭䈎䉎㪅 ౣ㘧ᢔ䈱ᛥ೙䈮䈲㪃 ᰴ䈱ੑ䈧䈱ⷐ࿃䈏ነਈ䈚䈩䈇䉎䈫⠨䈦䈢㪅 ශട㔚࿶㪄㪏㫂㪭 䈱႐ว㪃 㓸䈛䉖₸䈲㕒㔚ᬀᲫ㔚ᭂ䈏⚂䈋䉌䉏䉎㪅 ৻䈧䈲䉫䊧䊷䊂䉞䉣䊮䊃ജ䈪㪃 䉅䈉৻䈧䈲䉟䉥䊮㘑䈪㪐㪎㩼㪃㩷 䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䈲⚂ 㪏㪉㩼㩷 䈪䈅䈦䈢㪅㩷 䉺䊋䉮ᾍ䈱☸ሶ䈅䉎㪅 䉟䉥䊮㘑䈱ᓇ㗀䈮㑐䈚䈩䈲䋬ᰴ䈱䉋䈉䈮⠨䈋䉌䉏䉎㪅 䉟䉥䊮

94 (36)30㘑䈲㜞㔚࿶㔚ᭂ䈎䉌㓸䈛䉖㔚ᭂ䈱ᣇะ䈮⊒↢䈚㪃 ☸ሶ䉕㓸䈛䉖22006 ߹ߣ߼㔚ᭂ䈻ャㅍ䈜䉎㪅 䈚䈎䈚㪃 㓸䈛䉖㔚ᭂ䈻೔㆐䈚䈢䉟䉥䊮㘑䈲㪃㔚᳇㓸䈛䉖ⵝ⟎䈮䈍䈇䈩㪃 䉰䊑䊚䉪䊨䊮☸ሶ䈮ኻ䈜䉎㓸䈛䉖㓸䈛䉖㔚ᭂ䈫ⴣ⓭䈚਄ᣇ䈻็䈐਄䈏䉎䋨䊋䉾䉪䊪䊷䊄䋩㪅㩷 䋨෩ኒ䈮₸䈱ะ਄䈲㊀ᄢ䈭໧㗴䈪䈅䉎㪅 ᧄ⎇ⓥ䈪䈲䈖䈱໧㗴ὐ䉕స᦯䈲㪃 㓸䈛䉖㔚ᭂ䈻೔㆐䈚䈢ᤨὐ䈪䈾䈫䉖䈬䈱䉟䉥䊮䈲ᄬ䉒䉏䉎䈜䉎䈢䉄㪃 㓸䈛䉖㔚ᭂ਄䈮䊌䉟䊦䉕㕒㔚ᬀᲫ䈜䉎䈖䈫䈪㓸䈛䉖䈱䈪㪃 ็䈐਄䈏䉎ᵹ䉏䈲䉟䉥䊮㘑䈪䈲䈭䈇㪅䋩䈖䈱็䈐਄䈏䉍䈮䉋㔚ᭂ䈱⴫㕙Ⓧ䉕Ⴧട䈘䈞㪃 䉫䊧䊷䊂䉞䉣䊮䊃ജ䈮䉋䉍ౣ㘧ᢔ䉕㒐䈦䈩㪃 㓸䈛䉖䈘䉏䉎⋥೨䈱☸ሶ䈏Ꮞ䈐਄䈕䉌䉏㪃 䉁䈢㓸䈛䉖㔚ᭂᱛ䈜䉎䈖䈫䈏น⢻䈪䈅䉎䈎ᬌ⸛䉕ⴕ䈦䈢㪅 ᧄ⎇ⓥ䈪ᓧ䉌䉏䈢ਥ⴫㕙䈮㓸䈛䉖䈘䉏䈢☸ሶ䈱৻ㇱ䈏ౣ㘧ᢔ䈜䉎㪅㩷 䈖䈱ᤨ㪃㩷 㓸䈛䉖䈢䉎⍮⷗䉕એਅ䈮䉁䈫䉄䉎㪅㩷㔚ᭂ䈮㕒㔚ᬀᲫ䉕ᣉ䈜䈫㪃 䈠䈱㕒㔚ᬀᲫ䈮䉋䉎៺ᡂᛶ᛫䈮䉋䈦㩿㪈㪀㩷㪇㪅㪊 ঙ䈎䉌 㪇㪅㪌 ঙ䉁䈪䈱䉰䊑䊚䉪䊨䊮☸ሶ䈮ኻ䈜䉎㓸䈛䉖䈩䉟䉥䊮㘑䈱็䈐਄䈏䉍䈏ᛥ೙䈘䉏䉎䈫ᕁ䉒䉏䉎㪅㩷 ታ㓙䈮䉟䉥䊮₸䈲㕒㔚ᬀᲫ㔚ᭂ䈏 㪐㪋㩼㪃 䉝䊦䊚䊆䉡䊛ᐔ᧼㔚ᭂ䈲 㪏㪐㩼㘑䈱᭽ሶ䉕ⷰኤ䈜䉎䈫㪃㩷 㕒㔚ᬀᲫ㔚ᭂ䈱႐ว䈲䉝䊦䊚䊆䉡䊛ᐔ䈪䈅䉍㪃 㕒㔚ᬀᲫ䈱ᣇ䈏 㪌㩼એ਄㜞䈒䈭䈦䈢㪅 㕒㔚ᬀᲫ㔚᧼㔚ᭂ䈱႐ว䈮Ყ䈼䈩䊋䉾䉪䊪䊷䊄䈏㕖Ᏹ䈮ዊ䈘䈒䈭䈦䈩䈇䈢㪅ᭂ䉕↪䈇䉎䈖䈫䈪㪃 ᐔ᧼㔚ᭂ䉋䉍ᓸ☸ሶ䈮ኻ䈚㪃 㜞䈇㓸䈛䈖䈱䉟䉥䊮㘑䈱็䈐਄䈏䉍䈱ᛥ೙䉅ౣ㘧ᢔ䉕ᛥ䈋䉎䈖䈫䈮ነਈ䈚䉖ᕈ⢻䈱㆐ᚑ䈏น⢻䈪䈅䈦䈢㪅䈩䈇䉎䈫⠨䈋䉌䉏䉎㪅 䉁䈢㪃 䈖䈱ὐ䈮㑐䈚䈩䈲੹ᓟ䈱⎇ⓥ⺖㗴䈪㩿㪉㪀㕒㔚ᬀᲫ䈮↪䈇䈢䊅䉟䊨䊮䊌䉟䊦䈱వ┵ㇱ䈮䈍䈇䈩ᓸ☸
ሶ䈏☻ᄢൻ䈜䉎䈖䈫䈏᣿䉌䈎䈮䈭䈦䈢㪅䈅䉎㪅㩷㩷 㕒㔚ᬀᲫ㔚ᭂߩ㓸ߓࠎ෸߮ౣ㘧ᢔᛥ೙ࡕ࠺࡞ᧄ⎇ⓥ䈱৻ㇱ䈲㩿⽷㪀༛ᾍ⑼ቇ⎇ⓥ⽷࿅䈭䉌䈶䈮ᢥㇱ⑼ቇ⋭㕒㔚ᬀᲫ㔚ᭂ䈱ᓸ☸ሶ㓸䈛䉖෸䈶ౣ㘧ᢔᛥ೙䊝䊂䊦䉕㪉㪈 ਎♿ 㪚㪦㪜 䍀ᧂ᧪␠ળ䈱↢ᘒᕡᏱᕈᎿቇ䍁䈱ഥᚑ䈮䉋䈦䈩ⴕ㪝㫀㪾㪅㪈㪇 䈮␜䈜㪅 䈖䈖䈪㪃㩷 㪝㪈 䈲䉪䊷䊨䊮ജ㪃㩷 㪝㪉 䈲䉫䊧䊷䊂䉞䉣䊮䊃䉒䉏䉁䈚䈢㪅 䈖䈖䈮⻢ᗧ䉕⴫䈚䉁䈜㪅 䉁䈢㪃 䈖䈱⎇ⓥ䈮ኻ䈚䈩䈗ജ䈪㱍䈲⺃ዉಽᭂ㩿㪚㪆䋛㪀㪃 㱡䈲‛૕䈱ኈⓍ㩿ণ㪀䉕␜䈜㪅 ⩄㔚䈘ഥജ䉕㗂䈇䈢 㪣㪞 㪜㫃㪼㪺㫋㫉㫆㫅㫀㪺㫊 㪛㫀㪾㫀㫋㪸㫃㩷 㪘㫇㫇㫃㫀㪸㫅㪺㪼㩷 㪚㫆㫄㫇㪸㫅㫐 䈱⎇䉏䈢☸ሶ䈲㪃 䉪䊷䊨䊮ജ䈮䉋䈦䈩㓸䈛䉖㔚ᭂ䈻⒖േ䈜䉎㪅 㓸䈛ⓥ䉫䊦䊷䊒䈮ᗵ⻢⥌䈚䉁䈜㪅䉖㔚ᭂ⴫㕙䈲㪃 㕒㔚ᬀᲫ䈘䉏䈩䈍䉍㪃 䈠䈱㕒㔚ᬀᲫవ┵䈮㔚⇇㩷䈏㓸ਛ䈜䉎䈢䉄㪃㩷 ☸ሶ䈲వ┵䈮䉋䉍ᄙ䈒㓸䈛䉖䈘䉏䉎㪅㩷 䉁䈢㪃㩷 㕒ෳ⠨ᢥ₂㔚ᬀᲫవ┵䈱ਇᐔ╬㔚⇇䈲㪃 ☸ሶ䈮ኻ䈚䈩䉫䊧䊷䊂䉞䉣䊮䊃ജ㪈㪀䉕䈍䉋䈿䈚㪃 䈠䈱䉫䊧䊷䊂䉞䉣䊮䊃ജ䈏వ┵䈻䈱㓸䈛䉖䈅䉎䈇䈲

L. Morawska, V. Agranovski, Z. Ristovski and M. Jamriska:
Indoor Air, 12(2002)129

㪉㪀 Y. Zhuang, Y. J. Kim, T. G. Lee, P. Biswas: J. Electrostat.,ౣ㘧ᢔ䈱ᛥ೙䈮ነਈ䈜䉎䈫⠨䈋䉎㪅

48(2000) 245
㪊㪀 A. Mizuno: IEEE Trans. On Ind., 7(2000)615
q
Charge q 1 -Ion

㪋㪀Particle

Charge q
Electrostatic
flocking fiber

Hautanen, E. I. Kauppinen: J. Electrostat., 34(1995)367
㪌㪀F1T. Watanabe, F. Tochikubo, Y. Koizumi, T. Tsuchida, J.

-Ion
F2

F

Y. Koizum, M. Kawamura, F.Tochikubo, T. Watanabe: J.
Electrostat., 48(2000)93E
㪍㪀

A. Laitinen, J. Keskinen, E. Kauppinen, J. Jokiniemi, K.

Lethinen: J. Electrostat., 38(1996)303
㪎㪀 ℰᘮⷩ┨ᦺ㪃 દ⮮ᵏ㇢㪃㩷 㜞ᯅᱞ↵㪃㩷 ᣂ⽴๺ᾖ㪃 Ꮉ਄৻⟤㪑㩷㔚᳇⸳஻ቇળ⹹㪃 㪈㪍㩿㪈㪐㪐㪍㪀㪈㪉㪏㪏㪏㪀 ℰᘮⷩ┨ᦺ㪃 ␹ઍᷤ㪃 Ꮉ↰ศᒄ㪃 ᳯේ↱ᵏ㪃 દ⮮ᵏ㇢㪃 㜞

F=F1+F2ᯅᱞ↵㪃 Ꮉ਄৻⟤㪃 㜞᧻ᱞผ㪑 㔚᳇ቇળ⺰ᢥ⹹ 㪘㪃

F1=qE (Coulomb force)㪈㪈㪐㩿㪈㪐㪐㪐㪀㪉㪍㪎㩷F2=(ǽǩǩ̳  ШE2 (Gradient force)9)

Fig.10 Model of precipitation and reentrainment
suppression on an electrostatic flocking electrode.

㪐㪀㩷 㕒㔚᳇ቇળ㪑㩷 㕒㔚᳇䊊䊮䊄䊑䉾䉪㪃㩷㫇 㪉㪌㪋㪃㩷 䉥䊷䊛␠㩿㪈㪐㪏㪐㪀㩷