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EPI’s fluidized bed boiler systems convert renewable biomass and other solid or liquid fuels into steam energy. From major superheated utility power boilers to small heat recovery boilers, EPI systems feature our state-of-the-art fluidized bed thermal oxidizer combined with advanced heat transfer technologies to cleanly and efficiently generate steam energy.
EPI pioneered and perfected natural circulation submerged fluidized bed heat transfer and sparse vapor tubes. EPI’s submerged (inbed) tubes are protected from erosion through a proprietary coating systems that provides extended life and excellent heat transfer properties. Sparse vapor tubes extract heat energy without the cold wall effect experienced with water wall boilers. The combination creates a high efficiency (low excess air) extremely low emission producing system. Fuel Flexibility & Bed Recycle System With nearly 100 EPI fluidized bed boilers, burning over 200 different varieties of fuels, EPI has more fluidized boiler experience on wider variety of fuels than any other supplier. Click here to view a partial list of our fuel experience. EPI systems handle fuels ranging in moisture content from 5% to 65% and ash contents of over 50%. Our patented bed recycle system permits continuous operation of the combustion process while removing inert material from the bed. This patented "on-line" cleaning capability reduces costs associated with downtime, labor and bed media usage. In addition to normalo biomass and coal, the system can be designed to accommodate tire derived fuel (TDF) and refuse derived fuel (RDF) containing wires. In addition to wires introduced with the TDF or RDF, tramp material is typically introduced with the fuel and consists of rocks, metal and other inert material. Also, fuel ash characteristics and upset operating conditions inevitably lead to occasional clinkering of a portion of the bed media. If tramp, wire or clinkers were allowed to accumulate, this material would eventually destroy the fluidizing properties of the bed by increasing the average particle size of the bed material to a point where fluidization could no longer occur. |
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Energy Products of Idaho
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Integrated
Heat Transfer