Precise theme tackled by the practice:
Combined heat and power production using household waste, peat and biofuels.
Objectives of the practice:
To take care of the combustible household waste, since it is illegal to dump it on landfill in Sweden, and to supply heat and power to the city of Ljungby in southeast Sweden.
Location
Country:
Sweden
Region or District or Metropolitan Area or Municipality:
Region of Kronoberg, municipality of Ljungby
Detailed description of the practice
Description of the practice:
In the Ljungby CHP plant there are two boilers, one for waste and one for peat and biofuels, with a total power of 30 MW heat and 4,0 MW electricity. For the electricity production there are two turbines. The boilers as well as the turbines can be run together or separate. The fuel mix consists of 65 % waste, 24 % peat, 8 % wood chips and 3 % oil and LPG. The waste consists of approximately 85 % renewable material. In Sweden it is illegal to dump combustible waste on landfill. Ljungby Energi AB gets paid to take care of the waste, i.e. a positive fuel cost. The exhaust is treated to remove all contaminants and is well ahead of EU limitations on exhaust. The district heating network supplies heat to 80% of the 14 000 inhabitants in Ljungby and also to many industries.
Evaluation
Possible demonstrated results:
Good reliability in operation, good emission values – well below the EU limitations, waste is converted to useful energy.
Possible success factors:
Waste has a positive fuel cost.
Lessons learnt from the practice:
It is possible to take care of combustible waste and at the same time produce heat and power.
Contact information:
Bo Schönbeck, Heat Production Manager, Ljungby Energi AB, bo.schonbeck@ljungby-energi.se
Other possible interesting information
Website:
Images Information
source: http://www.bioenarea.eu