Energetische Nutzung halmgutartiger Biomasse - Abfallratgeber ...

Straw-fired Combined Heat and Power Plant
hydraulically operated piston. This type of feeding system has proven
very robust and reliable, however not suitable for larger plants.
Following various difficulties during the initial operation period the
plant now operates very well.
Måbjergværket
Figure 1: Måbjerg CHP Plant
Måbjerg CHP Plant is a combined waste, straw and wood chip-fired plant
co-fired with natural gas. Two of the three boilers are waste-fired and the
third boiler is fired with straw and wood chips. A natural gas-fired superheater
is located in the steam line from each boiler providing the final superheat
of the steam. The plant went into operation in 1992 and supplies
heat to the city of Holstebro and power to the national grid. Figure 1
shows a photo of the plant.
The steam data of the bioboiler are 15 kg/s / 65 bar / 410 °C and the
firing concept is designed according to the so-called "cigar principle" feeding
straw onto a vibrating grate.
The boiler is 100 % straw and wood chip-fired and the annual consumption
amounts to 50,000 tonnes of straw and 17,000 tonnes of wood
chip. The total net output is 28 MW electricity and 67 MJ/s heat at an
annual production of 1,440 TJ heat and 160 GWh electricity.
Gülzow, 30. November 1995 105