[{"data":1,"prerenderedAt":467},["ShallowReactive",2],{"site-footer-common":3,"glossary:epa-nsps":45,"glossary-related:epa-nsps":201},{"id":4,"extension":5,"footer":6,"meta":40,"navbar":41,"stem":43,"__hash__":44},"common\u002Fcommon.yml","yml",{"tagline":7,"links":8,"sections":9},"Acoustic cleaning intelligence for industrial fouling, soot, ash, dust and build-up.",[],[10,19,31],{"title":11,"links":12},"Product",[13,16],{"label":14,"to":15},"How it works","\u002F#product",{"label":17,"to":18},"Cost assessment","\u002F#hero",{"title":20,"links":21},"Company",[22,25,28],{"label":23,"to":24},"What we build","\u002F#about",{"label":26,"to":27},"Careers","\u002F#careers",{"label":29,"to":30},"Contact","\u002F#contact",{"title":32,"links":33},"Resources",[34,37],{"label":35,"to":36},"Blog","\u002Fresources\u002Fblog",{"label":38,"to":39},"Glossary","\u002Fglossary",{},{"links":42},[],"common","YocmZRy1AYfBbpgGVms-zhdiABlF8VTxHx6h4rDmZBA",{"id":46,"title":47,"aliases":48,"body":52,"category":182,"description":183,"extension":184,"meta":185,"navigation":186,"path":187,"relatedTerms":188,"seo":191,"sources":194,"stem":198,"term":199,"__hash__":200},"glossary\u002Fglossary\u002Fepa-nsps.md","EPA NSPS",[49,50,51],"NSPS","New Source Performance Standards","Subpart D \u002F Da \u002F Db",{"type":53,"value":54,"toc":176},"minimark",[55,62,67,143,157,161],[56,57,58,61],"p",{},[59,60,47],"strong",{}," (New Source Performance Standards) are US Environmental Protection Agency emission limits for newly constructed and significantly modified industrial sources. Subparts D, Da and Db cover steam-generating units (utility boilers); other subparts cover dozens of additional industrial categories.",[63,64,66],"h2",{"id":65},"key-subparts-for-sylios-market","Key subparts for Sylio's market",[68,69,70,83],"table",{},[71,72,73],"thead",{},[74,75,76,80],"tr",{},[77,78,79],"th",{},"Subpart",[77,81,82],{},"Sector",[84,85,86,95,103,111,119,127,135],"tbody",{},[74,87,88,92],{},[89,90,91],"td",{},"D",[89,93,94],{},"Steam-generating units constructed 1971–1978",[74,96,97,100],{},[89,98,99],{},"Da",[89,101,102],{},"Utility steam-generating units constructed after 1978",[74,104,105,108],{},[89,106,107],{},"Db",[89,109,110],{},"Industrial-commercial-institutional steam-generating units",[74,112,113,116],{},[89,114,115],{},"Dc",[89,117,118],{},"Small industrial steam-generating units",[74,120,121,124],{},[89,122,123],{},"Ea \u002F Eb",[89,125,126],{},"Municipal waste combustors",[74,128,129,132],{},[89,130,131],{},"F",[89,133,134],{},"Portland cement plants",[74,136,137,140],{},[89,138,139],{},"Y",[89,141,142],{},"Coal preparation plants",[56,144,145,146,151,152,156],{},"NSPS limits typically demand operating particulate-control equipment (",[147,148,150],"a",{"href":149},"\u002Fglossary\u002Felectrostatic-precipitator","ESP",", ",[147,153,155],{"href":154},"\u002Fglossary\u002Fbaghouse","baghouse",") at the upper end of its design capability, which is best achieved with active cleaning that preserves performance over the operating cycle.",[63,158,160],{"id":159},"related-terms","Related terms",[162,163,164,171],"ul",{},[165,166,167],"li",{},[147,168,170],{"href":169},"\u002Fglossary\u002Fmats-us-mercury-and-air-toxics","MATS",[165,172,173],{},[147,174,175],{"href":149},"Electrostatic precipitator",{"title":177,"searchDepth":178,"depth":178,"links":179},"",2,[180,181],{"id":65,"depth":178,"text":66},{"id":159,"depth":178,"text":160},"standards-regulations","EPA NSPS (New Source Performance Standards) are US Environmental Protection Agency emission limits for newly constructed and significantly modified industrial sources. Subparts D, Da and Db cover steam-generating units (utility boilers); other subparts cover dozens of additional industrial categories.","md",{},true,"\u002Fglossary\u002Fepa-nsps",[189,190],"mats-us-mercury-and-air-toxics","electrostatic-precipitator",{"title":192,"description":193},"EPA NSPS — New Source Performance Standards for US industrial categories","EPA NSPS set emission limits for newly constructed and significantly modified industrial sources. Subpart D \u002F Da \u002F Db cover steam-generating units; many other subparts cover other sectors.",[195],{"title":196,"url":197},"Wikipedia — New Source Performance Standards","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNew_Source_Performance_Standards","glossary\u002Fepa-nsps","EPA New Source Performance Standards","cPFlrWt7Eun6DxBjOxnvQ4Nvzci1_15lYd70j3jwvKg",[202,284],{"id":203,"title":204,"aliases":205,"body":207,"category":182,"description":271,"extension":184,"meta":272,"navigation":186,"path":169,"relatedTerms":273,"seo":275,"sources":278,"stem":282,"term":206,"__hash__":283},"glossary\u002Fglossary\u002Fmats-us-mercury-and-air-toxics.md","MATS (US Mercury and Air Toxics)",[170,206],"Mercury and Air Toxics Standards",{"type":53,"value":208,"toc":267},[209,214,218,221,243,250,252],[56,210,211,213],{},[59,212,170],{}," (Mercury and Air Toxics Standards) is the US EPA's rule setting national emission limits for mercury, acid gases and other hazardous air pollutants from coal-fired and oil-fired electric utility steam generators. Promulgated in 2012, MATS drove substantial retrofit investment in US power-plant pollution control through the 2010s.",[63,215,217],{"id":216},"industrial-implications","Industrial implications",[56,219,220],{},"MATS compliance often requires retrofitting:",[162,222,223,226,229,240],{},[165,224,225],{},"Activated-carbon injection for mercury",[165,227,228],{},"Dry sorbent injection or wet FGD for acid gases",[165,230,231,232,235,236,239],{},"Higher-efficiency ",[147,233,234],{"href":154},"baghouses"," or upgraded ",[147,237,238],{"href":149},"ESPs"," for particulate-bound metals",[165,241,242],{},"Continuous emissions monitoring upgrades",[56,244,245,249],{},[147,246,248],{"href":247},"\u002Fglossary\u002Fsonic-horn","Sonic horns"," installed during MATS-driven retrofits help maintain the achieved compliance margin over the operating cycle — preserving ESP\u002Fbaghouse performance against the fouling that would otherwise erode it.",[63,251,160],{"id":159},[162,253,254,258,262],{},[165,255,256],{},[147,257,47],{"href":187},[165,259,260],{},[147,261,175],{"href":149},[165,263,264],{},[147,265,266],{"href":154},"Baghouse",{"title":177,"searchDepth":178,"depth":178,"links":268},[269,270],{"id":216,"depth":178,"text":217},{"id":159,"depth":178,"text":160},"MATS (Mercury and Air Toxics Standards) is the US EPA's rule setting national emission limits for mercury, acid gases and other hazardous air pollutants from coal-fired and oil-fired electric utility steam generators. Promulgated in 2012, MATS drove substantial retrofit investment in US power-plant pollution control through the 2010s.",{},[274,190,155],"epa-nsps",{"title":276,"description":277},"MATS — US Mercury and Air Toxics Standards for power plants","MATS sets limits on mercury, acid gases and other hazardous air pollutants from US coal-fired and oil-fired power plants. Driver for ESP\u002Fbaghouse retrofits and tightening particulate control.",[279],{"title":280,"url":281},"Wikipedia — Mercury and Air Toxics Standards","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMercury_and_Air_Toxics_Standards","glossary\u002Fmats-us-mercury-and-air-toxics","RNiZzSNAsZRVx02yveop2cSw-IbJq-NKcV5mJqjW1N0",{"id":285,"title":286,"aliases":287,"body":290,"category":441,"description":442,"extension":184,"meta":443,"navigation":186,"path":149,"relatedTerms":444,"seo":452,"sources":455,"stem":465,"term":175,"__hash__":466},"glossary\u002Fglossary\u002Felectrostatic-precipitator.md","Electrostatic precipitator (ESP)",[150,288,289],"electrostatic precipitators","dry ESP",{"type":53,"value":291,"toc":435},[292,308,312,330,334,370,374,406,408],[56,293,294,295,298,299,303,304,307],{},"An ",[59,296,297],{},"electrostatic precipitator (ESP)"," is an air-pollution-control device that removes particulate matter from a flue-gas stream by electrostatically charging dust particles and collecting them on grounded plate electrodes. ESPs are the dominant particulate-control technology on coal-fired boilers, cement kilns, ",[147,300,302],{"href":301},"\u002Fglossary\u002Fwaste-to-energy","waste-to-energy"," plants, ",[147,305,306],{"href":301},"biomass"," plants, sinter strands and many other heavy-industry off-gas streams.",[63,309,311],{"id":310},"how-an-esp-works","How an ESP works",[56,313,314,315,319,320,324,325,329],{},"Flue gas flows horizontally between a parallel array of vertical ",[147,316,318],{"href":317},"\u002Fglossary\u002Fcollecting-electrode","collecting electrodes"," (plates) and ",[147,321,323],{"href":322},"\u002Fglossary\u002Fdischarge-electrode","discharge electrodes"," (high-voltage wires or rigid spikes). A negative DC potential of 40–80 kV applied to the discharge electrodes generates a ",[147,326,328],{"href":327},"\u002Fglossary\u002Fcorona-discharge","corona discharge"," that ionises the gas. Charged dust particles drift to the collecting plates, accumulate as a dust layer, are rapped down into hoppers below and removed by ash-handling equipment.",[63,331,333],{"id":332},"where-sonic-horns-fit","Where sonic horns fit",[56,335,336,337,341,342,344,345,349,350,354,355,359,360,364,365,369],{},"ESPs accumulate dust faster than mechanical rapping can release it, and hoppers below ESP fields routinely ",[147,338,340],{"href":339},"\u002Fglossary\u002Fbridging","bridge"," and choke. ",[147,343,248],{"href":247}," installed on the ESP ",[147,346,348],{"href":347},"\u002Fglossary\u002Fesp-penthouse","penthouse"," and on hopper walls keep dust dislodged, supplement ",[147,351,353],{"href":352},"\u002Fglossary\u002Fesp-rapper","rappers",", prevent ",[147,356,358],{"href":357},"\u002Fglossary\u002Fback-corona","back-corona"," by limiting plate dust thickness, and eliminate hopper ",[147,361,363],{"href":362},"\u002Fglossary\u002Frat-holing","rat-holing"," without the structural fatigue of ",[147,366,368],{"href":367},"\u002Fglossary\u002Ftumbling-hammer-rapper","tumbling-hammer rappers",".",[63,371,373],{"id":372},"common-failure-modes","Common failure modes",[162,375,376,382,388,394,400],{},[165,377,378,381],{},[59,379,380],{},"High opacity \u002F particulate emissions"," from thick dust layers reducing collection efficiency",[165,383,384,387],{},[59,385,386],{},"Back-corona"," in high-resistivity ash that reverses ionisation and collapses collection",[165,389,390,393],{},[59,391,392],{},"Re-entrainment"," as rapper puffs return dust to the gas stream",[165,395,396,399],{},[59,397,398],{},"Hopper bridging"," that stops ash extraction and triggers field shutdowns",[165,401,402,405],{},[59,403,404],{},"Discharge-electrode breakage"," from rapper fatigue or sparking",[63,407,160],{"id":159},[162,409,410,415,420,424,430],{},[165,411,412],{},[147,413,414],{"href":317},"Collecting electrode",[165,416,417],{},[147,418,419],{"href":322},"Discharge electrode",[165,421,422],{},[147,423,386],{"href":357},[165,425,426],{},[147,427,429],{"href":428},"\u002Fglossary\u002Fesp-hopper","ESP hopper",[165,431,432],{},[147,433,434],{"href":247},"Sonic horn",{"title":177,"searchDepth":178,"depth":178,"links":436},[437,438,439,440],{"id":310,"depth":178,"text":311},{"id":332,"depth":178,"text":333},{"id":372,"depth":178,"text":373},{"id":159,"depth":178,"text":160},"esp","An electrostatic precipitator (ESP) is an air-pollution-control device that removes particulate matter from a flue-gas stream by electrostatically charging dust particles and collecting them on grounded plate electrodes. ESPs are the dominant particulate-control technology on coal-fired boilers, cement kilns, waste-to-energy plants, biomass plants, sinter strands and many other heavy-industry off-gas streams.",{},[445,446,447,448,449,450,358,451],"wet-esp","collecting-electrode","discharge-electrode","corona-discharge","esp-hopper","esp-rapper","sonic-horn",{"title":453,"description":454},"Electrostatic precipitator (ESP) — how it works and how it fouls","An ESP removes particulate from flue gas by charging dust and collecting it on plate electrodes. Sonic horns are widely used to dislodge ash from plates and to keep hoppers from bridging.",[456,459,462],{"title":457,"url":458},"Wikipedia — Electrostatic precipitator","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FElectrostatic_precipitator",{"title":460,"url":461},"EPA — Monitoring Knowledge Base: Electrostatic Precipitators","https:\u002F\u002Fwww.epa.gov\u002Fair-emissions-monitoring-knowledge-base\u002Fmonitoring-control-technique-electrostatic-precipitators",{"title":463,"url":464},"Babcock & Wilcox — Basics of ESP Operation","https:\u002F\u002Fwww.babcock.com\u002Fhome\u002Fabout\u002Fresources\u002Flearning-center\u002Fbasic-esp-operation","glossary\u002Felectrostatic-precipitator","hT_C4hmid3iZaYWhLpiSJ2tBfL0bSJ-uhzn7TY4Vtj4",1782613754551]