[{"data":1,"prerenderedAt":940},["ShallowReactive",2],{"site-footer-common":3,"glossary:forced-outage":45,"glossary-related:forced-outage":208},{"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":189,"description":190,"extension":191,"meta":192,"navigation":193,"path":194,"relatedTerms":195,"seo":199,"sources":202,"stem":206,"term":47,"__hash__":207},"glossary\u002Fglossary\u002Fforced-outage.md","Forced outage",[49,50,51],"unplanned outage","forced shutdown","emergency shutdown",{"type":53,"value":54,"toc":182},"minimark",[55,70,75,78,106,110,147,154,158],[56,57,58,59,63,64,69],"p",{},"A ",[60,61,62],"strong",{},"forced outage"," is an unplanned shutdown of an industrial unit, triggered by equipment failure (typically ",[65,66,68],"a",{"href":67},"\u002Fglossary\u002Fboiler-tube-failure","boiler tube failure",") or by pressure-vessel safety conditions that cannot be tolerated in continued operation. Forced outages are tracked as a percentage of operating hours (forced outage rate, FOR) and contrast with planned outages scheduled in advance.",[71,72,74],"h2",{"id":73},"economic-cost","Economic cost",[56,76,77],{},"Forced outages dominate the economic cost of poor cleaning practice:",[79,80,81,88,94,100],"ul",{},[82,83,84,87],"li",{},[60,85,86],{},"Coal-fired utility (500 MW)"," — typically $0.5–1.5 million per day of forced outage, depending on power-market price",[82,89,90,93],{},[60,91,92],{},"WtE plant (40 MW + tipping-fee revenue)"," — $0.3–0.7 million per day including lost gate fees",[82,95,96,99],{},[60,97,98],{},"Pulp-mill recovery boiler"," — typically $0.4–1.0 million per day of mill production interruption",[82,101,102,105],{},[60,103,104],{},"Cement plant (5,000 t\u002Fday)"," — $300–600k per day of lost clinker",[71,107,109],{"id":108},"fouling-driven-forced-outages","Fouling-driven forced outages",[79,111,112,119,126,133,140],{},[82,113,114,118],{},[65,115,117],{"href":116},"\u002Fglossary\u002Fesp-hopper","ESP hopper pluggage"," forcing the field offline",[82,120,121,125],{},[65,122,124],{"href":123},"\u002Fglossary\u002Fdifferential-pressure-baghouse","Baghouse ΔP"," tripping the ID fan",[82,127,128,132],{},[65,129,131],{"href":130},"\u002Fglossary\u002Fkiln-inlet-ring-snowman","Cement kiln-inlet snowmen"," requiring manual cleaning",[82,134,135,139],{},[65,136,138],{"href":137},"\u002Fglossary\u002Frecovery-boiler","Recovery boiler superheater pluggage"," demanding chill-and-blow",[82,141,142,146],{},[65,143,145],{"href":144},"\u002Fglossary\u002Fheat-recovery-steam-generator","HRSG ΔP"," excursion derating the gas turbine",[56,148,149,153],{},[65,150,152],{"href":151},"\u002Fglossary\u002Fsonic-horn","Sonic horns"," attack the root cause — early fouling — before it reaches the level that forces outages.",[71,155,157],{"id":156},"related-terms","Related terms",[79,159,160,165,171,177],{},[82,161,162],{},[65,163,164],{"href":67},"Boiler tube failure",[82,166,167],{},[65,168,170],{"href":169},"\u002Fglossary\u002Ffouling","Fouling",[82,172,173],{},[65,174,176],{"href":175},"\u002Fglossary\u002Fderate-capacity","Derate (capacity)",[82,178,179],{},[65,180,181],{"href":151},"Sonic horn",{"title":183,"searchDepth":184,"depth":184,"links":185},"",2,[186,187,188],{"id":73,"depth":184,"text":74},{"id":108,"depth":184,"text":109},{"id":156,"depth":184,"text":157},"fouling","A forced outage is an unplanned shutdown of an industrial unit, triggered by equipment failure (typically boiler tube failure) or by pressure-vessel safety conditions that cannot be tolerated in continued operation. Forced outages are tracked as a percentage of operating hours (forced outage rate, FOR) and contrast with planned outages scheduled in advance.","md",{},true,"\u002Fglossary\u002Fforced-outage",[196,189,197,198],"boiler-tube-failure","derate-capacity","sonic-horn",{"title":200,"description":201},"Forced outage — unplanned shutdown of an industrial unit","A forced outage is an unplanned shutdown of an industrial unit, typically triggered by equipment failure or pressure-vessel safety conditions. The dominant economic cost of poor cleaning practice.",[203],{"title":204,"url":205},"POWER Magazine — Update: Benchmarking Boiler Tube Failures","https:\u002F\u002Fwww.powermag.com\u002Fupdate-benchmarking-boiler-tube-failures\u002F","glossary\u002Fforced-outage","-h5oCd37HtewUqUSSzf-rNasA7zS77_rdx5umhPLH0Y",[209,402,580,713],{"id":210,"title":164,"aliases":211,"body":215,"category":389,"description":390,"extension":191,"meta":391,"navigation":193,"path":67,"relatedTerms":392,"seo":395,"sources":398,"stem":400,"term":164,"__hash__":401},"glossary\u002Fglossary\u002Fboiler-tube-failure.md",[212,213,214],"BTF","boiler tube failures","tube leak",{"type":53,"value":216,"toc":384},[217,223,227,331,335,338,359,361],[56,218,219,222],{},[60,220,221],{},"Boiler tube failure (BTF)"," is the leading cause of forced outages on industrial and utility boilers worldwide. A single tube leak in a high-pressure section requires immediate shutdown for safety and repair, with outage costs running into millions of dollars on a large utility unit.",[71,224,226],{"id":225},"common-btf-mechanisms","Common BTF mechanisms",[228,229,230,243],"table",{},[231,232,233],"thead",{},[234,235,236,240],"tr",{},[237,238,239],"th",{},"Mechanism",[237,241,242],{},"Typical location",[244,245,246,264,276,292,300,315,323],"tbody",{},[234,247,248,252],{},[249,250,251],"td",{},"Long-term overheating \u002F creep",[249,253,254,255,259,260],{},"Finishing ",[65,256,258],{"href":257},"\u002Fglossary\u002Fsuperheater","superheater",", ",[65,261,263],{"href":262},"\u002Fglossary\u002Freheater","reheater",[234,265,266,269],{},[249,267,268],{},"Short-term overheating",[249,270,271,275],{},[65,272,274],{"href":273},"\u002Fglossary\u002Fwaterwall","Waterwall"," at burner clusters",[234,277,278,281],{},[249,279,280],{},"Fly-ash erosion",[249,282,283,259,287,291],{},[65,284,286],{"href":285},"\u002Fglossary\u002Feconomiser","Economiser",[65,288,290],{"href":289},"\u002Fglossary\u002Fconvective-pass-backpass","convective-pass"," tubes",[234,293,294,297],{},[249,295,296],{},"Sootblower erosion",[249,298,299],{},"Tube banks near sootblower lances",[234,301,302,308],{},[249,303,304],{},[65,305,307],{"href":306},"\u002Fglossary\u002Fcold-end-corrosion-dew-point-corrosion","Cold-end corrosion",[249,309,310,314],{},[65,311,313],{"href":312},"\u002Fglossary\u002Fair-heater","Air heater",", economiser cold end",[234,316,317,320],{},[249,318,319],{},"Hydrogen damage",[249,321,322],{},"High-heat-flux waterwalls",[234,324,325,328],{},[249,326,327],{},"Stress-corrosion cracking",[249,329,330],{},"Cycling units, austenitic superheaters",[71,332,334],{"id":333},"cleaning-practices-and-btf","Cleaning practices and BTF",[56,336,337],{},"Cleaning choices contribute directly to several BTF mechanisms:",[79,339,340,346,352],{},[82,341,342,345],{},[60,343,344],{},"Steam sootblower erosion"," is a documented cause of premature tube failure where lance alignment is poor or sootblowers fire too often",[82,347,348,351],{},[60,349,350],{},"Water-cannon thermal shock"," can crack tubes at the impingement zone",[82,353,354,358],{},[60,355,356],{},[65,357,152],{"href":151}," carry no documented BTF mechanism because they apply no contact force; this is a routinely-cited reason for their adoption as a complement to (or partial replacement of) steam sootblowing on fouling-prone surfaces",[71,360,157],{"id":156},[79,362,363,369,375,380],{},[82,364,365],{},[65,366,368],{"href":367},"\u002Fglossary\u002Fboiler","Boiler",[82,370,371],{},[65,372,374],{"href":373},"\u002Fglossary\u002Ftube-erosion-tube-wastage","Tube erosion \u002F tube wastage",[82,376,377],{},[65,378,379],{"href":306},"Cold-end corrosion \u002F dew-point corrosion",[82,381,382],{},[65,383,181],{"href":151},{"title":183,"searchDepth":184,"depth":184,"links":385},[386,387,388],{"id":225,"depth":184,"text":226},{"id":333,"depth":184,"text":334},{"id":156,"depth":184,"text":157},"boiler","Boiler tube failure (BTF) is the leading cause of forced outages on industrial and utility boilers worldwide. A single tube leak in a high-pressure section requires immediate shutdown for safety and repair, with outage costs running into millions of dollars on a large utility unit.",{},[389,393,394,198],"tube-erosion-tube-wastage","cold-end-corrosion-dew-point-corrosion",{"title":396,"description":397},"Boiler tube failure (BTF) — the leading cause of forced outages","Boiler tube failures are the leading cause of forced outages on industrial boilers. Causes range from creep and erosion to corrosion and overheating; cleaning practices contribute to several.",[399],{"title":204,"url":205},"glossary\u002Fboiler-tube-failure","jq0c2DsvoMFC7DUtwu56JbaA7p6hOAIN2NlQIGiTahk",{"id":403,"title":170,"aliases":404,"body":407,"category":189,"description":565,"extension":191,"meta":566,"navigation":193,"path":169,"relatedTerms":567,"seo":570,"sources":573,"stem":577,"term":578,"__hash__":579},"glossary\u002Fglossary\u002Ffouling.md",[405,406],"process fouling","heat-transfer fouling",{"type":53,"value":408,"toc":560},[409,468,472,510,514,525,527],[56,410,411,413,414,259,417,259,421,259,425,259,429,259,433,259,436,259,440,443,444,259,448,259,452,259,456,259,460,259,464,467],{},[60,412,170],{}," is the accumulation of unwanted deposits on the surfaces of process equipment. It is the universal phenomenon that connects every application Sylio addresses: ",[65,415,416],{"href":367},"boilers",[65,418,420],{"href":419},"\u002Fglossary\u002Felectrostatic-precipitator","ESPs",[65,422,424],{"href":423},"\u002Fglossary\u002Fbaghouse","baghouses",[65,426,428],{"href":427},"\u002Fglossary\u002Fselective-catalytic-reduction","SCR catalysts",[65,430,432],{"href":431},"\u002Fglossary\u002Fhopper","hoppers and silos",[65,434,435],{"href":144},"HRSGs",[65,437,439],{"href":438},"\u002Fglossary\u002Fpreheater-tower","cement preheaters",[65,441,442],{"href":137},"recovery boilers",". Different industries use different specific names for the resulting deposits — ",[65,445,447],{"href":446},"\u002Fglossary\u002Fslagging","slagging",[65,449,451],{"href":450},"\u002Fglossary\u002Fscaling","scaling",[65,453,455],{"href":454},"\u002Fglossary\u002Fcoking","coking",[65,457,459],{"href":458},"\u002Fglossary\u002Fbridging","bridging",[65,461,463],{"href":462},"\u002Fglossary\u002Fbuild-up-coating-accretion","coating",[65,465,466],{"href":462},"build-up"," — but fouling is the umbrella that connects them.",[71,469,471],{"id":470},"consequences-of-fouling","Consequences of fouling",[79,473,474,480,486,492,498,504],{},[82,475,476,479],{},[60,477,478],{},"Heat-transfer loss"," — reducing thermal efficiency and raising fuel cost",[82,481,482,485],{},[60,483,484],{},"Pressure-drop rise"," — derating fans and raising power consumption",[82,487,488,491],{},[60,489,490],{},"Flow blockage"," — interrupting material flow in storage and process vessels",[82,493,494,497],{},[60,495,496],{},"Tube corrosion"," — beneath the deposit, accelerated by local chemistry",[82,499,500,503],{},[60,501,502],{},"Forced outages"," — when fouling becomes severe enough to force a shutdown",[82,505,506,509],{},[60,507,508],{},"Emission excursions"," — when air-pollution-control equipment loses effectiveness",[71,511,513],{"id":512},"mitigation-philosophy","Mitigation philosophy",[56,515,516,517,521,522,524],{},"The Sylio philosophy is ",[518,519,520],"em",{},"prevention over remediation",". Continuous low-amplitude ",[65,523,198],{"href":151}," cleaning keeps deposits from consolidating into the bonded layers that demand intensive periodic cleaning. The economic case is clear: every avoided forced outage typically justifies the entire acoustic-cleaning installation.",[71,526,157],{"id":156},[79,528,529,534,539,544,550,556],{},[82,530,531],{},[65,532,533],{"href":446},"Slagging",[82,535,536],{},[65,537,538],{"href":450},"Scaling",[82,540,541],{},[65,542,543],{"href":454},"Coking",[82,545,546],{},[65,547,549],{"href":548},"\u002Fglossary\u002Fsintering-deposit","Sintering (deposit)",[82,551,552],{},[65,553,555],{"href":554},"\u002Fglossary\u002Fheat-transfer-surface-fouling","Heat-transfer surface fouling",[82,557,558],{},[65,559,181],{"href":151},{"title":183,"searchDepth":184,"depth":184,"links":561},[562,563,564],{"id":470,"depth":184,"text":471},{"id":512,"depth":184,"text":513},{"id":156,"depth":184,"text":157},"Fouling is the accumulation of unwanted deposits on the surfaces of process equipment. It is the universal phenomenon that connects every application Sylio addresses: boilers, ESPs, baghouses, SCR catalysts, hoppers and silos, HRSGs, cement preheaters, recovery boilers. Different industries use different specific names for the resulting deposits — slagging, scaling, coking, bridging, coating, build-up — but fouling is the umbrella that connects them.",{},[447,451,455,568,569,198],"sintering-deposit","heat-transfer-surface-fouling",{"title":571,"description":572},"Fouling — accumulation of unwanted deposits on process equipment surfaces","Fouling is the accumulation of unwanted deposits on process-equipment surfaces. The general umbrella term covering slagging, scaling, coking, sintering and many other specific mechanisms.",[574],{"title":575,"url":576},"Wikipedia — Fouling","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFouling","glossary\u002Ffouling","Fouling (general)","vsFkT5ifjz3ggye30lYBeL42wZVcgPLYcyF9bwo9YnA",{"id":581,"title":176,"aliases":582,"body":586,"category":189,"description":697,"extension":191,"meta":698,"navigation":193,"path":175,"relatedTerms":699,"seo":703,"sources":706,"stem":710,"term":711,"__hash__":712},"glossary\u002Fglossary\u002Fderate-capacity.md",[583,584,585],"capacity derate","load derate","generation derate",{"type":53,"value":587,"toc":691},[588,597,601,641,645,648,652,668,670],[56,589,58,590,593,594,596],{},[60,591,592],{},"derate"," is reduced operating capacity below the equipment's nameplate, imposed because a limiting condition has been reached. Unlike a ",[65,595,62],{"href":194}," (full shutdown), a derate keeps the unit running at lower throughput while the limit persists.",[71,598,600],{"id":599},"fouling-driven-derates","Fouling-driven derates",[79,602,603,617,626,635],{},[82,604,605,612,613,616],{},[60,606,607,611],{},[65,608,610],{"href":609},"\u002Fglossary\u002Fid-fan","ID fan"," capacity limit"," — high baghouse ",[65,614,615],{"href":123},"ΔP"," demands more fan power than available, forcing load reduction",[82,618,619,622,623,625],{},[60,620,621],{},"Boiler tube-metal temperature limit"," — ",[65,624,189],{"href":169}," reduces heat absorption, raising tube-metal temperature; protective derate engaged",[82,627,628,622,631,634],{},[60,629,630],{},"Stack opacity limit",[65,632,633],{"href":419},"ESP"," efficiency loss forces load reduction to meet emission limits",[82,636,637,640],{},[60,638,639],{},"HRSG approach-temperature limit"," — fouling on gas-side surfaces reduces heat recovery; gas-turbine output drops",[71,642,644],{"id":643},"economic-impact","Economic impact",[56,646,647],{},"Derates are usually less costly per hour than outages but can persist much longer. A 5% derate sustained for a month on a 500 MW unit loses ~9,000 MWh — comparable to a multi-day forced outage but easier to overlook in the maintenance ledger.",[71,649,651],{"id":650},"sonic-horns-and-derate-avoidance","Sonic horns and derate avoidance",[56,653,654,656,657,659,660,663,664,667],{},[65,655,152],{"href":151}," preserve heat-transfer effectiveness, ",[65,658,633],{"href":419}," collection efficiency, ",[65,661,662],{"href":423},"baghouse"," ΔP and ",[65,665,666],{"href":431},"hopper"," discharge. Each of these directly defends against the most common fouling-driven derate triggers.",[71,669,157],{"id":156},[79,671,672,676,682,686],{},[82,673,674],{},[65,675,47],{"href":194},[82,677,678],{},[65,679,681],{"href":680},"\u002Fglossary\u002Fheat-rate","Heat rate",[82,683,684],{},[65,685,170],{"href":169},[82,687,688],{},[65,689,690],{"href":123},"Differential pressure (baghouse)",{"title":183,"searchDepth":184,"depth":184,"links":692},[693,694,695,696],{"id":599,"depth":184,"text":600},{"id":643,"depth":184,"text":644},{"id":650,"depth":184,"text":651},{"id":156,"depth":184,"text":157},"A derate is reduced operating capacity below the equipment's nameplate, imposed because a limiting condition has been reached. Unlike a forced outage (full shutdown), a derate keeps the unit running at lower throughput while the limit persists.",{},[700,701,189,702],"forced-outage","heat-rate","differential-pressure-baghouse",{"title":704,"description":705},"Derate (capacity) — reduced operating capacity below nameplate due to a limiting condition","A derate is operation below nameplate capacity because a limiting condition has been reached. Fouling-driven derates from ID fan, ΔP or boiler tube limits are common.",[707],{"title":708,"url":709},"Wikipedia — Capacity factor","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCapacity_factor","glossary\u002Fderate-capacity","Derate","KbTPnqtYNK8jv3MrWXST3jBravYd08-1niXaklKEyxE",{"id":714,"title":181,"aliases":715,"body":719,"category":915,"description":916,"extension":191,"meta":917,"navigation":193,"path":151,"relatedTerms":918,"seo":925,"sources":928,"stem":938,"term":181,"__hash__":939},"glossary\u002Fglossary\u002Fsonic-horn.md",[716,717,718],"sonic horns","sonic cleaning horn","industrial sonic horn",{"type":53,"value":720,"toc":908},[721,746,750,758,762,824,828,864,868,876,878],[56,722,58,723,726,727,731,732,259,734,259,737,259,739,742,743,745],{},[60,724,725],{},"sonic horn"," is a pneumatically-driven sound emitter that produces high-intensity, low-frequency sound waves — typically between 60 and 400 Hz at sound pressure levels of 140 to 180 dB — used to dislodge particulate fouling from inside industrial process equipment. Sonic horns are the most common form of ",[65,728,730],{"href":729},"\u002Fglossary\u002Facoustic-cleaner","acoustic cleaner"," and the default specification for cleaning ",[65,733,420],{"href":419},[65,735,424],{"href":736},"\u002Fglossary\u002Ffabric-filter",[65,738,428],{"href":427},[65,740,741],{"href":257},"boiler heat-transfer surfaces"," and ",[65,744,432],{"href":431},".",[71,747,749],{"id":748},"how-a-sonic-horn-works","How a sonic horn works",[56,751,752,753,757],{},"Compressed plant air admitted through a ",[65,754,756],{"href":755},"\u002Fglossary\u002Fsolenoid-valve","solenoid valve"," drives a metal diaphragm — typically titanium or 316 stainless — into resonant oscillation at the horn's fundamental frequency. The oscillating pressure field is amplified by an exponential bell horn and projected into the vessel as a near-spherical sound wave. Particulate already deposited on internal surfaces receives an oscillating acceleration that overcomes adhesion; loosened material is then carried out with the gas flow before it can sinter, bridge or bond. Because the cleaning is acoustic and non-contact, the horn can fire while the plant is online without tube erosion, refractory damage or thermal shock.",[71,759,761],{"id":760},"key-parameters","Key parameters",[228,763,764,774],{},[231,765,766],{},[234,767,768,771],{},[237,769,770],{},"Parameter",[237,772,773],{},"Typical range",[244,775,776,784,792,800,808,816],{},[234,777,778,781],{},[249,779,780],{},"Fundamental frequency",[249,782,783],{},"60–400 Hz",[234,785,786,789],{},[249,787,788],{},"Sound pressure level",[249,790,791],{},"140–180 dB",[234,793,794,797],{},[249,795,796],{},"Compressed-air consumption",[249,798,799],{},"8–14 Nm³\u002Fmin at 4–7 bar",[234,801,802,805],{},[249,803,804],{},"Operating temperature (with appropriate materials)",[249,806,807],{},"−40 °C to +500 °C",[234,809,810,813],{},[249,811,812],{},"Firing cycle",[249,814,815],{},"5–15 s burst, repeated every 3–15 minutes",[234,817,818,821],{},[249,819,820],{},"Mass",[249,822,823],{},"15–60 kg depending on horn size",[71,825,827],{"id":826},"frequency-selection","Frequency selection",[56,829,830,831,259,835,838,839,259,843,847,848,259,851,855,856,742,860,745],{},"Lower frequencies (60–125 Hz) project longer wavelengths and penetrate further into large open vessels — ",[65,832,834],{"href":833},"\u002Fglossary\u002Fpreheater-cyclone","preheater cyclones",[65,836,837],{"href":137},"recovery-boiler superheaters",", large ",[65,840,842],{"href":841},"\u002Fglossary\u002Fesp-field-bus-section","ESP fields",[65,844,846],{"href":845},"\u002Fglossary\u002Fsilo","silos",". Higher frequencies (230–400 Hz) carry more energy per unit volume and suit finer dust loads in ",[65,849,850],{"href":736},"fabric-filter compartments",[65,852,854],{"href":853},"\u002Fglossary\u002Fhoneycomb-catalyst","catalyst layers"," and smaller hopper geometries. See ",[65,857,859],{"href":858},"\u002Fglossary\u002Flow-frequency-acoustic-cleaner","low-frequency acoustic cleaner",[65,861,863],{"href":862},"\u002Fglossary\u002Fhigh-frequency-acoustic-cleaner","high-frequency acoustic cleaner",[71,865,867],{"id":866},"sonic-horn-vs-steam-sootblower","Sonic horn vs steam sootblower",[56,869,870,871,875],{},"Sonic horns are increasingly specified alongside or in place of ",[65,872,874],{"href":873},"\u002Fglossary\u002Fsteam-sootblower","steam sootblowers"," because they consume no boiler-grade steam, cause no tube erosion, require almost no moving parts and can fire every few minutes without operator intervention. They are less effective on hard, fused slag than retractable steam lances, so on furnace waterwalls and high-temperature superheaters they typically complement rather than replace mechanical cleaning.",[71,877,157],{"id":156},[79,879,880,885,891,897,903],{},[82,881,882],{},[65,883,884],{"href":729},"Acoustic cleaner",[82,886,887],{},[65,888,890],{"href":889},"\u002Fglossary\u002Fsonic-sootblower","Sonic sootblower",[82,892,893],{},[65,894,896],{"href":895},"\u002Fglossary\u002Fbell-horn","Bell horn",[82,898,899],{},[65,900,902],{"href":901},"\u002Fglossary\u002Fdiaphragm-horn","Diaphragm horn",[82,904,905],{},[65,906,907],{"href":858},"Low-frequency acoustic cleaner",{"title":183,"searchDepth":184,"depth":184,"links":909},[910,911,912,913,914],{"id":748,"depth":184,"text":749},{"id":760,"depth":184,"text":761},{"id":826,"depth":184,"text":827},{"id":866,"depth":184,"text":867},{"id":156,"depth":184,"text":157},"core-technology","A sonic horn is a pneumatically-driven sound emitter that produces high-intensity, low-frequency sound waves — typically between 60 and 400 Hz at sound pressure levels of 140 to 180 dB — used to dislodge particulate fouling from inside industrial process equipment. Sonic horns are the most common form of acoustic cleaner and the default specification for cleaning ESPs, baghouses, SCR catalysts, boiler heat-transfer surfaces and hoppers and silos.",{},[919,920,921,922,923,924],"acoustic-cleaner","acoustic-cleaning-system","sonic-sootblower","bell-horn","diaphragm-horn","low-frequency-acoustic-cleaner",{"title":926,"description":927},"Sonic horn — definition, frequency, SPL and industrial applications","A sonic horn is a pneumatically-driven low-frequency sound emitter (typically 60–400 Hz at 140–180 dB SPL) used to dislodge particulate fouling from boilers, ESPs, baghouses and process vessels.",[929,932,935],{"title":930,"url":931},"Power Engineering — Sonic Horns: A User's Introduction","https:\u002F\u002Fwww.power-eng.com\u002Fcoal\u002Fsonic-horns-a-userrsquos-introduction\u002F",{"title":933,"url":934},"Power Engineering — Tuning in to Acoustic Cleaning","https:\u002F\u002Fwww.power-eng.com\u002Fcoal\u002Ftuning-in-to-acoustic-cleaning\u002F",{"title":936,"url":937},"Wikipedia — Sonic soot blowers","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSonic_soot_blowers","glossary\u002Fsonic-horn","YzrhN0kKzqSaQo0wfn0rueNZ-V43mcg5zahqeWi3lnU",1782613738621]