Natural wood power-heat system supplies the Osserhotel

Natural wood power-heat system supplies the Osserhotel

The project was developed and planned by our engineering team. It is a direct current fixed-bed gasifier. The fuel is fed to the wood gas reactor in a wood chip drying plant operated with waste heat from the wood gas CHP plant. In the reactor, the fuel is broken down into its elementary components in the absence of oxygen, oxidized and reduced to a combustible wood gas. The wood gas exits the gasifier at approx. 600°C, is cooled and cleaned of dust particles by a cartridge filter before it drives the 4-cylinder turbo engine and the asynchronous generator with a maximum output of 52 kW. The electricity generated is fed into the public grid in accordance with the Renewable Energy Act. The useful heat from the reactor, engine and exhaust gas cooling is used for space heating and domestic hot water heating in the Osserhotel in the base load, but also as a secondary source for wood drying. An existing wood chip boiler is used to generate the peak load when outside temperatures are low. All functional units of the gasifier CHP plant can be monitored and optimized via a modern control system and process visualization. Hotel owner Sigi Freimuth is delighted that the added value for his hotel's energy supply now remains in the region and that the wood gasification system can save more than 60,000 liters of HEL per year and reduce the burden on the environment by 230,000 kg of CO2 per year.