Company

Biomass combined cooling, heat and power on a waste wood basis - clean and natural heat.

The goal:

• Thermally efficient and economically viable use of waste wood for electricity, heating and cooling
• Assuring the high continuous electricity demand of an industrial customer located close to the site
• Extremely high demands on the furnace and the thermal oil boiler, as waste wood leads to slagging
• Comprehensive fuel preparation with effective separation of ferrous and non-ferrous metals as well as impurities
• Exceptionally strict emission limits as specified in the EU Directive 2000/76/EC require the use of highly efficient flue gas cleaning, combined with optimised primary measures for choking and complete burnout of the flue gas

Our solution:

• The supplied waste wood is first subjected to multi-stage processing
• Furnace specially designed for waste wood to ensure environmentally friendly incineration of the waste wood
• The thermal energy is transferred via a thermal oil circuit to the electricity generating unit, the ORC process
• The thermal energy is converted into electricity using a two-stage, slow-running axial turbine
• The remaining thermal energy is fed into the district heating circuit at the ORC condenser and used as driving energy for the nearby low-temperature absorption cooling machine for cooling

The data:

• Fuel thermal output of the furnace 7,800 kW
• Nominal output of the thermal oil boiler and thermal oil ECO 6,200 kW
• Nominal output of the warm water economiser 1,000 kW
• Available effective thermal output 5,800 kW
• Net electrical output ORC 1,100 kW
• Thermal drive power of the absorption cooling machine 2,400 kW
• Potential for future expansion of the district and process heating system 2,600 kW
• Heat generated from biomass 43,500 MWh/a
• Electricity generated from biomass 8,200 MWh/a
• Cooling generated from biomass 18,000 MWh/a