[{"data":1,"prerenderedAt":625},["ShallowReactive",2],{"site-footer-common":3,"glossary:afbc-boiler":45,"glossary-related:afbc-boiler":147},{"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":51,"category":128,"description":129,"extension":130,"meta":131,"navigation":132,"path":133,"relatedTerms":134,"seo":137,"sources":140,"stem":144,"term":145,"__hash__":146},"glossary\u002Fglossary\u002Fafbc-boiler.md","AFBC boiler",[47,49,50],"atmospheric fluidised bed","atmospheric fluidized bed",{"type":52,"value":53,"toc":121},"minimark",[54,77,82,85,89,97,101],[55,56,57,61,62,65,66,71,72,76],"p",{},[58,59,60],"strong",{},"AFBC"," stands for ",[58,63,64],{},"atmospheric fluidised-bed combustion"," — the umbrella term covering both ",[67,68,70],"a",{"href":69},"\u002Fglossary\u002Fbfb-boiler","bubbling fluidised-bed (BFB)"," and ",[67,73,75],{"href":74},"\u002Fglossary\u002Fcfb-boiler","circulating fluidised-bed (CFB)"," boilers operating at atmospheric pressure. AFBC distinguishes these from less common pressurised fluidised-bed combustion (PFBC) designs, which were trialled in the 1980s–90s but failed to displace the simpler atmospheric variants.",[78,79,81],"h2",{"id":80},"practical-usage","Practical usage",[55,83,84],{},"In Indian, South Asian and African industrial-boiler procurement, AFBC is the most-used label. In European and North American utility-scale terminology, \"CFB\" and \"BFB\" tend to be used directly, with \"AFBC\" reserved for textbooks and older references.",[78,86,88],{"id":87},"fouling-and-cleaning","Fouling and cleaning",[55,90,91,92,96],{},"Bed-overflow agglomerates, convective-pass ash bridging and air-heater cold-end deposition are common across all AFBC designs. ",[67,93,95],{"href":94},"\u002Fglossary\u002Fsonic-horn","Sonic horns"," are well-established on AFBC convective passes — coverage of this duty is one of Sylio's growth segments in Asian markets.",[78,98,100],{"id":99},"related-terms","Related terms",[102,103,104,110,115],"ul",{},[105,106,107],"li",{},[67,108,109],{"href":69},"BFB boiler",[105,111,112],{},[67,113,114],{"href":74},"CFB boiler",[105,116,117],{},[67,118,120],{"href":119},"\u002Fglossary\u002Fboiler","Boiler",{"title":122,"searchDepth":123,"depth":123,"links":124},"",2,[125,126,127],{"id":80,"depth":123,"text":81},{"id":87,"depth":123,"text":88},{"id":99,"depth":123,"text":100},"boiler","AFBC stands for atmospheric fluidised-bed combustion — the umbrella term covering both bubbling fluidised-bed (BFB) and circulating fluidised-bed (CFB) boilers operating at atmospheric pressure. AFBC distinguishes these from less common pressurised fluidised-bed combustion (PFBC) designs, which were trialled in the 1980s–90s but failed to displace the simpler atmospheric variants.","md",{},true,"\u002Fglossary\u002Fafbc-boiler",[135,136,128],"bfb-boiler","cfb-boiler",{"title":138,"description":139},"AFBC boiler — atmospheric fluidised-bed combustion class","AFBC is the umbrella term for atmospheric-pressure fluidised-bed boilers, including both bubbling-bed (BFB) and circulating-bed (CFB) designs.",[141],{"title":142,"url":143},"Boiler World Update — AFBC Boiler Maintenance Guide","https:\u002F\u002Fboilerworldupdate.com\u002Fafbc-boiler-maintenance-guide-tube-cleaning-fouling-control-sonic-horn-efficiency\u002F","glossary\u002Fafbc-boiler","Atmospheric fluidised-bed combustion boiler","7T_nDrtbvwael6vAat5eTo0oZCMDTVcDOPoVnK8xlt0",[148,252,396],{"id":149,"title":150,"aliases":151,"body":154,"category":128,"description":238,"extension":130,"meta":239,"navigation":132,"path":69,"relatedTerms":240,"seo":242,"sources":245,"stem":249,"term":250,"__hash__":251},"glossary\u002Fglossary\u002Fbfb-boiler.md","BFB boiler (bubbling fluidised bed)",[109,152,153],"bubbling fluidised bed","bubbling fluidized bed",{"type":52,"value":155,"toc":233},[156,167,171,192,196,216,218],[55,157,158,159,162,163,166],{},"A ",[58,160,161],{},"bubbling fluidised-bed (BFB) boiler"," burns fuel in a bed of inert solids fluidised by an upward gas flow slow enough that the bed surface bubbles like boiling water but particles do not entrain into the flue gas. Compared with ",[67,164,165],{"href":74},"CFB",", BFB uses lower fluidisation velocity, no external cyclone, and a simpler bed-management regime.",[78,168,170],{"id":169},"where-bfb-is-used","Where BFB is used",[102,172,173,176,179,186,189],{},[105,174,175],{},"Wet biomass and forest residues",[105,177,178],{},"Sewage-sludge incineration",[105,180,181,185],{},[67,182,184],{"href":183},"\u002Fglossary\u002Fhog-fuel-boiler-bark-boiler","Hog-fuel"," and bark boilers at pulp mills",[105,187,188],{},"Small-to-mid capacity district-heating and process-steam duty",[105,190,191],{},"High-moisture, low-calorific fuels generally",[78,193,195],{"id":194},"fouling","Fouling",[55,197,198,199,71,203,207,208,212,213,215],{},"The fouling pattern resembles a CFB but with less cyclone deposition. The convective pass, ",[67,200,202],{"href":201},"\u002Fglossary\u002Feconomiser","economiser",[67,204,206],{"href":205},"\u002Fglossary\u002Fair-heater","air heater"," accumulate fine ash; the ",[67,209,211],{"href":210},"\u002Fglossary\u002Fwaterwall","waterwall"," above the bed can experience alkali-rich slagging on agricultural-residue and straw fuels. ",[67,214,95],{"href":94}," on the convective pass and air-heater cold end are the typical cleaning fit.",[78,217,100],{"id":99},[102,219,220,224,228],{},[105,221,222],{},[67,223,120],{"href":119},[105,225,226],{},[67,227,114],{"href":74},[105,229,230],{},[67,231,232],{"href":183},"Hog-fuel boiler \u002F bark boiler",{"title":122,"searchDepth":123,"depth":123,"links":234},[235,236,237],{"id":169,"depth":123,"text":170},{"id":194,"depth":123,"text":195},{"id":99,"depth":123,"text":100},"A bubbling fluidised-bed (BFB) boiler burns fuel in a bed of inert solids fluidised by an upward gas flow slow enough that the bed surface bubbles like boiling water but particles do not entrain into the flue gas. Compared with CFB, BFB uses lower fluidisation velocity, no external cyclone, and a simpler bed-management regime.",{},[128,136,241],"hog-fuel-boiler-bark-boiler",{"title":243,"description":244},"BFB boiler — bubbling fluidised-bed combustion for biomass and sludge","A BFB boiler suspends fuel in a slowly-bubbling bed of inert solids. Lower fluidisation velocity than CFB; suited to high-moisture biomass and sludges.",[246],{"title":247,"url":248},"Wikipedia — Fluidized bed combustion","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFluidized_bed_combustion","glossary\u002Fbfb-boiler","Bubbling fluidised-bed boiler","Bzx0JXI9cax6PUkf7iAsR15RqikYZIcxMt5DAlUZ8LA",{"id":253,"title":254,"aliases":255,"body":258,"category":128,"description":382,"extension":130,"meta":383,"navigation":132,"path":74,"relatedTerms":384,"seo":388,"sources":391,"stem":393,"term":394,"__hash__":395},"glossary\u002Fglossary\u002Fcfb-boiler.md","CFB boiler (circulating fluidised bed)",[114,256,257],"circulating fluidised bed boiler","circulating fluidized bed",{"type":52,"value":259,"toc":377},[260,276,280,283,308,311,315,346,351,353],[55,261,158,262,265,266,270,271,275],{},[58,263,264],{},"circulating fluidised-bed (CFB) boiler"," burns fuel in a turbulent bed of sand, ash and limestone, circulated by an upward-flowing combustion-air stream and recirculated through external ",[67,267,269],{"href":268},"\u002Fglossary\u002Fcyclone-separator","cyclone separators",". Combustion temperature (~850 °C) is much lower than in a ",[67,272,274],{"href":273},"\u002Fglossary\u002Fpc-boiler","PC boiler",", giving naturally lower NOx and the capability to capture SO₂ in the bed by limestone addition.",[78,277,279],{"id":278},"fuel-flexibility","Fuel flexibility",[55,281,282],{},"CFB boilers tolerate a far wider range of fuels than PC boilers:",[102,284,285,288,291,298,305],{},[105,286,287],{},"Coal (anthracite, bituminous, sub-bituminous, lignite)",[105,289,290],{},"Petroleum coke",[105,292,293,297],{},[67,294,296],{"href":295},"\u002Fglossary\u002Fwaste-to-energy","Biomass"," (wood, agricultural residues, bagasse)",[105,299,300,304],{},[67,301,303],{"href":302},"\u002Fglossary\u002Frdf-srf-tdf","RDF"," and waste fractions",[105,306,307],{},"Mixed and low-grade fuels",[55,309,310],{},"This fuel flexibility makes CFB the technology of choice for biomass conversions, waste-fired plants and lignite-rich regions.",[78,312,314],{"id":313},"fouling-pattern","Fouling pattern",[102,316,317,323,340],{},[105,318,319,322],{},[58,320,321],{},"Cyclone fouling"," — recirculating bed material accumulates on cyclone walls and downcomers",[105,324,325,328,329,331,332,71,336,339],{},[58,326,327],{},"Backpass fouling"," — fine ash on ",[67,330,202],{"href":201},", ",[67,333,335],{"href":334},"\u002Fglossary\u002Fsuperheater","superheater",[67,337,338],{"href":205},"air-heater"," tubes",[105,341,342,345],{},[58,343,344],{},"Refractory wear"," in high-velocity zones",[55,347,348,350],{},[67,349,95],{"href":94}," on the backpass surfaces and cyclone walls extend run length between maintenance outages.",[78,352,100],{"id":99},[102,354,355,359,363,367,372],{},[105,356,357],{},[67,358,120],{"href":119},[105,360,361],{},[67,362,109],{"href":69},[105,364,365],{},[67,366,274],{"href":273},[105,368,369],{},[67,370,371],{"href":268},"Cyclone separator",[105,373,374],{},[67,375,376],{"href":94},"Sonic horn",{"title":122,"searchDepth":123,"depth":123,"links":378},[379,380,381],{"id":278,"depth":123,"text":279},{"id":313,"depth":123,"text":314},{"id":99,"depth":123,"text":100},"A circulating fluidised-bed (CFB) boiler burns fuel in a turbulent bed of sand, ash and limestone, circulated by an upward-flowing combustion-air stream and recirculated through external cyclone separators. Combustion temperature (~850 °C) is much lower than in a PC boiler, giving naturally lower NOx and the capability to capture SO₂ in the bed by limestone addition.",{},[128,135,385,386,387],"pc-boiler","cyclone-separator","sonic-horn",{"title":389,"description":390},"CFB boiler — circulating fluidised-bed combustion for fuel flexibility","A CFB boiler burns fuel in a turbulent bed of sand, ash and limestone circulated by an upward-flowing gas stream. Tolerates coal, biomass, RDF and lignite; produces low NOx.",[392],{"title":247,"url":248},"glossary\u002Fcfb-boiler","Circulating fluidised-bed boiler","QNumZQl2rNlvci0eemW6ii5Do8yT8iOZn-74mjhC-XY",{"id":397,"title":120,"aliases":398,"body":402,"category":128,"description":609,"extension":130,"meta":610,"navigation":132,"path":119,"relatedTerms":611,"seo":613,"sources":616,"stem":623,"term":120,"__hash__":624},"glossary\u002Fglossary\u002Fboiler.md",[399,400,401],"industrial boiler","utility boiler","steam generator",{"type":52,"value":403,"toc":604},[404,428,432,543,547,574,576],[55,405,158,406,408,409,331,412,71,415,419,420,71,424,427],{},[58,407,128],{}," is a closed vessel in which fuel chemical energy is converted to steam by transferring heat into water flowing through tube banks. Industrial and utility boilers serve electricity generation, district heating, process steam, ",[67,410,411],{"href":295},"WtE",[67,413,414],{"href":295},"biomass",[67,416,418],{"href":417},"\u002Fglossary\u002Frecovery-boiler","pulp-and-paper"," operations. All of them foul; the only variables are ",[421,422,423],"em",{},"how much",[421,425,426],{},"with what",".",[78,429,431],{"id":430},"boiler-families","Boiler families",[433,434,435,451],"table",{},[436,437,438],"thead",{},[439,440,441,445,448],"tr",{},[442,443,444],"th",{},"Type",[442,446,447],{},"Fuel",[442,449,450],{},"Notes",[452,453,454,467,479,491,504,517,528],"tbody",{},[439,455,456,461,464],{},[457,458,459],"td",{},[67,460,274],{"href":273},[457,462,463],{},"Pulverised coal",[457,465,466],{},"Dominant utility design",[439,468,469,473,476],{},[457,470,471],{},[67,472,114],{"href":74},[457,474,475],{},"Coal, biomass, RDF, lignite",[457,477,478],{},"Tolerates wider fuel range; lower NOx",[439,480,481,485,488],{},[457,482,483],{},[67,484,109],{"href":69},[457,486,487],{},"Biomass, sludge, low-grade fuels",[457,489,490],{},"Bubbling fluidised bed",[439,492,493,498,501],{},[457,494,495],{},[67,496,497],{"href":417},"Recovery boiler",[457,499,500],{},"Black liquor (kraft pulp mills)",[457,502,503],{},"Combines chemicals recovery with steam",[439,505,506,511,514],{},[457,507,508],{},[67,509,510],{"href":183},"Hog-fuel boiler",[457,512,513],{},"Wood waste, bark",[457,515,516],{},"Common at pulp mills as side boilers",[439,518,519,522,525],{},[457,520,521],{},"Gas \u002F oil boiler",[457,523,524],{},"Natural gas, fuel oil",[457,526,527],{},"Lower particulate, less fouling",[439,529,530,533,536],{},[457,531,532],{},"HRSG",[457,534,535],{},"Gas-turbine exhaust",[457,537,538,539],{},"See ",[67,540,542],{"href":541},"\u002Fglossary\u002Fheat-recovery-steam-generator","heat-recovery steam generator",[78,544,546],{"id":545},"where-sonic-horns-sit","Where sonic horns sit",[55,548,549,551,552,331,554,331,557,71,561,563,564,568,569,573],{},[67,550,95],{"href":94}," installed across the convective pass — between ",[67,553,202],{"href":201},[67,555,556],{"href":334},"superheaters",[67,558,560],{"href":559},"\u002Fglossary\u002Freheater","reheater",[67,562,206],{"href":205}," — dislodge ash and soot continuously, supplementing or partially replacing steam ",[67,565,567],{"href":566},"\u002Fglossary\u002Fsteam-sootblower","sootblowers",". The benefit shows up as ",[67,570,572],{"href":571},"\u002Fglossary\u002Fheat-rate","heat rate"," recovery, deferred outages and longer intervals between water washes.",[78,575,100],{"id":99},[102,577,578,582,586,590,595,600],{},[105,579,580],{},[67,581,274],{"href":273},[105,583,584],{},[67,585,114],{"href":74},[105,587,588],{},[67,589,497],{"href":417},[105,591,592],{},[67,593,594],{"href":210},"Waterwall",[105,596,597],{},[67,598,599],{"href":201},"Economiser",[105,601,602],{},[67,603,376],{"href":94},{"title":122,"searchDepth":123,"depth":123,"links":605},[606,607,608],{"id":430,"depth":123,"text":431},{"id":545,"depth":123,"text":546},{"id":99,"depth":123,"text":100},"A boiler is a closed vessel in which fuel chemical energy is converted to steam by transferring heat into water flowing through tube banks. Industrial and utility boilers serve electricity generation, district heating, process steam, WtE, biomass and pulp-and-paper operations. All of them foul; the only variables are how much and with what.",{},[385,136,135,612,211,202,335,338,387],"recovery-boiler",{"title":614,"description":615},"Boiler — industrial steam generator types and acoustic-cleaning needs","A boiler is a vessel that converts fuel chemical energy into steam by heating water. Coal-fired, biomass, oil, gas and recovery boilers all foul; sonic horns clean heat-transfer surfaces.",[617,620],{"title":618,"url":619},"Wikipedia — Boiler","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBoiler",{"title":621,"url":622},"Babcock & Wilcox — Sootblower and Boiler Cleaning Terminology","https:\u002F\u002Fwww.babcock.com\u002Fhome\u002Fabout\u002Fresources\u002Flearning-center\u002Fsootblower-and-boiler-cleaning-terminology-principles-and-applications","glossary\u002Fboiler","pamAnZGo_UeIedDHhYrfv0nP3GCXkNTGi0a197n4b5Q",1782613724330]