Abstract
The article focuses on selected aspects of the technical
and economic analysis of the 0.8 MW agricultural biogas
plant. The electrical power, generated in a cogeneration system,
fed power to the neighbouring overhead power grid, Węgrów
– Sokołów Podlaski, while the heat energy recovered from combustion
gases and liquids cooling the engine was used to heat
digesters, a residential building, drying room and farm buildings.
The planned annual production equals c.a. 6400 MWh per year
given the 8000 h of engine operation. The substrates used as input
for the digestive chambers were as follows: fermented maize,
pig slurry and liquid digestate pulp.
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