This 15 MWth wood-fired heating plant in Lelystad, Netherlands supplies renewable heat to the district heating net of Lelystad. The plant combusts annually up to 30,000 tonnes (depending on the heat demand) of wood chips (wood waste) obtained from required forest maintenance in the whole area of Lelystad.
HoSt engineered, supplied, constructed and commissioned the heating plant with high reliability and high efficiency. Up to 30% additional heat is achieved with the use of HoSt’s latest flue gas condenser bringing the efficiency above 100%. This flue gas system has been successfully installed in plants for the past decade. The produced renewable heat is delivered to the district heating net of Lelystad equivalent to heat for circa 5,000 homes and with future expansion when more districts will be connected to the grid. Production of this renewable heat saves about 7.5 million m3 gas and has a positive impact on global warming.
The installation is equipped with two so-called heat buffers allowing the installation to momentary supply 20MWth to the net. At night, the heat buffers are charged making sure that renewable heat is provided when it is needed the most: during the high heat demand in the morning. Known as the ‘morning ramp’. This way, people from approximately 5,000 households in Lelystad can take their hot shower in the morning with heat produced in the Lelystad bioenergy plant.
|Start-up/ First fire||2018|
|Wood storage||360 m³ bunker with moving floor|
|Wood supply systems||Bunker, chain scraper, dividing screw and hydraulic push infeeders|
|Furnace||15 MWth – 0.8-6.3 tons/hour wood chips|
|Water tube steam boiler||6 MWth at 5.5 bar and 125 °C|
|Flue gas cleaning||Multicyclone, Bag house filter|
|Flue gas condenser||2.3 MWth|