Egtved District Heating

EGTVED HEATING PLANT A sustainable combined heating plant that provides high security of supply and fuel flexibility

Egtved, Denmark

EGTVED HEATING PLANT Fuel: Wood chips, straw, grain and seed shells Boiler size: 2 MW Heat pump size: 2.1 MW Type of plant: District heating plant Energy type: Hot water system Year of building: 2020 Combined heating plant The biomass plant consists of a Linka H boiler intended for burning of straw, wood chips, and other dry fuels. At the end of the combustion chamber of the boiler, a moveable stepped grate is located, which is moved by means of hydraulic cylinders. Here, combustion air is supplied in a co-flow principle, which is Linka’s world patented system. This is the main reason why the solution is extremely efficient and emissions are kept down.

The heat pump included in the system is a complete solution that can absorb energy from outdoor air and water. The complete heat pump system is designed so that when heating in 3 steps, high efficiency is achieved both during full load and reduced operation. The compressors and the cooling circuit are simple and very compact, providing long service life and very low operating costs.

The heat pump consists of 3 compressor modules. Thus, the heating of water runs in 2 steps through one 1-stage heat pump compressor and one 2-stage compressor module.

The compressor modules are extremely simple with screw compressor and injection valve as the only moving parts of the cooling/heating circuit.

The fully automatic state-of-the-art heating plant is dimensioned to ensure a stable operation focusing on ease of use and good working environment for the operators.

The operating requirements are minimal and the system can even be monitored via remote access, which means that consumers are always guaranteed access to heat.

The plant will generate 100 % CO2-neutral heat

Bioler

Heat pump

91.7 %

14

Efficiency

kWh/MWh in power consumption

3.87 % 47.3 % COP

Lorentzefficiency

Benefits of a combined heating plant By using both biomass and a heat pump, high flexibility is ensured as it is possible to burn biomass when the price of electricity is high – while it is possible to use the heat pump when the electricity price is low.

The primary fuels are straw and wood chips, but other biomasses can also be used, including grain and seed shells. This provides high flexibility in purchasing the fuel locally.

When biomass and a heat pump are combined, the temperature of the district heating water may be higher than it would be possible with a heat pump alone.

Linka Energy wishes to promote sustainable development in society We especially focus on UN’s global goals; ”Sustainable energy” and ”Sustainable cities and communities”.

“It was important for us to have a future-proof heating plant with the highest possible environmental profile and not just a boiler to burn wood chips.”

Anders Rønshof, Chairman of the Egtved Heating Plant