?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F477%2F&rft.title=Modelling+barriers+for+coal+dust+suppression&rft.creator=Chan%2C+D.&rft.creator=Zhu%2C+Z.&rft.subject=Environment&rft.description=Airborne+dust+originating+from+the+transport+and+storage+of+raw+coal+has+detrimental+effects+on+the+environment.+Warkworth+Mining+is+seeking+to+reduce+the+dust+emissions+caused+by+the+dumping+of+raw+coal+at+their+facility+in+Singleton%2C+NSW.+The+suggested+strategy+was+the+construction+of+windbreaks%2C+for+which+commercial+designs+exist.+The+MISG+was+asked+to+advise+on+the+placement+and+design+of+such+windbreaks.%0D%0A%0D%0AThe+problem+was+approached+by+studying+results+in+the+literature+on+windbreak+design%2C+selecting+a+few+possible+configurations%2C+and+then+testing+these+by+solving+numerically+for+the+wind+velocity+around+the+dumping+site.+It+was+concluded+that+a+long+fence+on+the+upwind+side+of+the+dumping+hoppers+would+provide+moderate+protection%2C+but+would+interfere+with+current+operating+procedures.+As+a+better+option%2C+a+long+downwind+fence+immediately+behind+the+hoppers+would+provide+a+similar+reduction+in+the+dust+emission%2C+and+allow+more+effective+use+of+water+sprays.+Although+fine+details+of+the+fence+design+could+not+be+modelled+numerically%2C+we+concluded+that+it+was+desirable+for+the+fence+to+have+an+angled+overhang+in+the+vicinity+of+the+hoppers%2C+and+a+porous+section+near+the+base+to+reduce+turbulent+flows.&rft.date=1995&rft.type=Study+Group+Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F477%2F1%2FModelling-barriers-for-coal-dust-suppression.pdf&rft.identifier=++Chan%2C+D.+and+Zhu%2C+Z.++(1995)+Modelling+barriers+for+coal+dust+suppression.++%5BStudy+Group+Report%5D+++++