Burkhardt GmbH products

Working on the principle of combined heat and power generation, Burkhardt units use wood pellets to generate electricity and heat. Wood pellets to ENplus A1 specification are used. Our biomass power plant consists of a wood gasifier and the downstream cogeneration power plant.

Working on the principle of combined heat and power, cogeneration units produce both electrical power and usable heat. This uses some 90 % of the heat available from the fuel consumed, saving significant amounts of primary energy and CO₂ emissions. The energy is produced exactly where it is required, thus avoiding transport losses. That makes cogeneration units highly efficient and climate-friendly.

The Burkhardt wood gas generators run on wood pellets according to the EN Plus A1 specification only. This specification defines the composition of the pellets in terms of, for example, water and ash content, size and ash softening point. In turn, this very homogeneous fuel allows for a very homogeneous gasification process and thus enables the smooth, long-term operation of the plant. The wood pellets are also more compact and easier to store (no drying and turning in advance is necessary).

The V 3.90 Burkhardt wood gasifier, together with the ECO 180 HG (with pilot injection gas motor) combined heat and power plant or the ECO 165 HG (petrol engine), delivers electrical and thermal energy from wood pellets. Depending on which CHP we use, we are able to generate 260 - 270 kW heat and 165 - 180 kW of electricity.

The V 4.50 works according to the same principle as its big technical brother, the V 3.90, namely by way of parallel flow gasification, during which fuel and air are fed to the gas reactor from below in a controlled way and are dosed with such precision that the pellets fluidise in certain areas without being carried away. Due to the uniform size of the wood pellets, the fluidised bed stabilises on its own. An efficient gas-Otto CHP takes over the electricity generation from the wood gas.

This Burkhardt adaptation of the popular MAN D26 pilot injection gas engine of the CHP ECO 180 HG operates without pilot oil. Thus, it is operated on wood gas alone and is even easier to service. The pilot oil unit was removed. Instead, the wood gas-air mixture is ignited with spark plugs. The Burkhardt ECO 165 HG, together with the Burkhardt V 3.90 wood gasifier, generates about 165 kW electrical and about 260 kW thermal energy and has a pellet consumption rate of 110kg/h.

The basic engine is a MAN D26 six-cylinder in-line diesel engine with turbocharger, control unit, and 4-stroke common rail fuel injection system, as well as 4-valve technology with optimised combustion chamber and centrally arranged injection elements. The Burkhardt CHP ECO 180 HG, together with the Burkhardt V 3.90 wood gasifier, generates about 180 kW electrical and about 270 kW thermal energy and has a pellet consumption rate of 110 kg/h and 4 l of pilot oil/h.

For this, the combined heat and power plant was developed in cooperation with KW Energie (Freystadt/Bavaria). The CHP specialist when it comes to the smaller output range of up to 70kW scores not only with many years of experience and high-quality products, but also with the proximity to the Burkhardt headquarters, a fact that naturally furthers the cooperation additionally.

In the cogeneration unit, a special, gas-powered combustion engine drives a generator to convert mechanical energy into electricity. This is used to supply the current demand in the building to which it is connected, any excess can be fed into the supply network. The exhaust heat is recovered from the cooling water, lubricating oil, exhaust and charge air in heat exchangers, producing hot water with a flow temperature of 90 °C to 95 °C. With this optimised use of the heat, Burkhardt cogeneration units achieve efficiencies of up to 92 %.

As standard, we offer six different cogeneration classes from 135 to 355 kWe. The range of power levels means that we have just the cogeneration unit for you purposes.