BIOCOGEN: EXISTING FLAGSHIP – Austria (A) Biomasse Kraftwerk Güssing GmbH & Co KG Burgenland AUSTRIA Wiener Straße 51 A-7540 Güssing Tel.:++43/3322/43011-11 Contact: Ing. Reinhard KOCH Tel.: +43/3322/9010/850 31 Fax: +43/3322/9010/850 11 E-Mail: [email protected] http://www.eee-info.net http://www.bnet.at/cis/fwg BACKGROUND Source: http://www.eee-info.net/index_e.html Güssing is the European centre for renewable energy. One of the largest district-heating networks based on biomass and a RME plant for the production of organic diesel have also been set up and emphasize the importance of this form of energy for Güssing. A new type of power station has recently been developed in Güssing in order to facilitate the production of electricity from biomass by small decentralised power stations. This utilizes a gasification process which has advantages over combustion processes particularly in the combined production of power and heating. The Güssing biomass power station produces 2,000 kW electric current and 4,500 kW heating from 1,760 kg. wood per hour. In order to develop this project from the original concept to the finished result, a team consisting of the plant builder, Austrian Energy, scientists from the Vienna Technical University, the EVN and Güssing district heating joined forces in the expert network RENET and developed and developed this new, efficient and technically advanced system for the combined production of power and heating based on the gasification of biomass. TECHNICAL INFORMATION Source: http://www.eee-info.net/index_e.html The heart of the power station is the WIRBELSCHICHT steam carbureter. It consists of two connencted WIRBELSCHICHTSYSTEMEN ( fluidised bed systems). During gasification the biomass is gasified with approximately 850 degree C under supply of steam. Using water vapor, instead of air as medium of gasification, results in a nitrogen free, tar-poor product gas, with a high heat value. A part of the remaining coke is transported to combusting over a circulating bed material (sand), which act as heat distribution media. The warmth dissipating to the bed material is needed for the maintenance of the gasification reactions. The flue gas is carried off separately, and the contained warmth is used for uncoupling of long distance heating. For the function of the gas engine, which is installed afterwards, the product gas must be cooled and cleaned. Naturally the warmth dropping with the cooling is used again for long distance heating. Afterwards the gas is freed from dust in a woven filter. After this procedure a scrubber reduces the concentrations of tar, ammonia and sour gas components. Due to this special procedure it is possible to lead back all residual substances into the process. As a consequence neither wastes nor waste water result during gas cleaning. The gas engine converts the chemical energy of the product gas into electrical. Beyond that, the waste heat of the engine is used as well for the production of long distance heating. Since using biomass the efficiency obtained by that way is so far unique. The electrical efficiency is 25-28%, the overall efficiency (electricity and warmth) is even more than 85%. FUEL SUPPLY Solid biomass (chips). The capacity is 4.5 MW heat and 2 kW electricity production. Reasons for your choice as an examplar project (or bad case). - Strong leadership - Innovative partnership - Environmental excellence (positive land use, minimal emissions etc.) - Technology or technical excellence - Appropriate siting and scale - Community involvement/ social benefits provided (e.g. addresses fuel poverty) Univ.Prof. Dipl.-Ing. Dr.techn. Hermann HOFBAUER Technical University of Vienna Institute of Chemical Engineering, Fuel Technology and Environmental Technology Getreidemarkt 9/159 A 1060 Wien Tel.: +43 1 58801-15970 [email protected] http://info.tuwien.ac.at/histu/inst/166.htm BIOCOGEN: DEMONSTRATION FLAGSHIP – Austria (B) Biomass CHP Plant based on an ORC cycle and a newly developed Fuzzy Logic control system Tyrol, AUSTRIA Stadtwärme Lienz Produktions- und VertriebsGmbH A-9900 Lienz, Schulstraße 1 Tel.: ++43/4852/604-2200 Fax:++43/4852/604-20277 E-mail: [email protected] Contact: DI Heinz Reisinger, Tel.: 04852/604-20211 DI Gernot Pointner, Tel.: 0316/387-51020 source http://bios-bioenergy.at/bios/ebios.shtml BACKGROUND District Heating Plant of the Stadtgemeinde Lienz Start of operation: October 2001 Owner: Stadtwärme Lienz Produktions- und VertriebsGmbH Investment costs: CHP plant 7.7 Mio €; District heating grid:15.4 Mio € TECHNICAL INFORMATION Nominal electric capacity: 1.000 kW Nominal thermal capacities: 6.5 MW (thermal oil boiler + ECO) + 7.0 MW (hot water boiler) + 1.5 MW (heat recuperation in economiser) Roofed storage capacity 5,000 Srm Open storage capacity 10,000 Srm Solar thermal collector 630 m2 Nominal power thermal oil boiler 6,000 kW Nominal power thermal oil ECO 500 kW2 Nominal power hot water boiler 7,000 kW Nominal power hot water ECO 1,500 kW Nominal power oil boiler (peak load coverage) 11,000 kW Maximum thermal power solar thermal collector 350 kW Net electric power ORC 1,000 kW Production of heat from biomass 60,000 MWh/a Production of heat from solar energy 250 MWh/a Production of electricity from biomass 7,200 MWh/a - First 1,000 kWel biomass combined heat and power plant based on the ORC-process worldwide - First use of a specially developed heat recuperation system for thermal oil boilers to increase the electric efficiency -Use of a Fuzzy Logic control for process optimisation -Efficient, multi-stage flu gas cleaning system consisting of multi-cyclone, economiser and wet electrostatic precipitator combined with a flue gas condensation unit ORC Process: 1 regenerator 5 pump 9 district heat input 2 condenser 6 preheater 10 thermo-oil input 3 turbine 7 evaporator 11 thermo-oil output 4 generator 8 district heat output Source: http://bios-bioenergy.at FUEL SUPPLY The plant is fired with bark, saw dust, wood chips from local saw mills (90,000 Srm/a) and rural wood chips (10,000 Srm/a) Reasons for your choice as an examplar project: - Strong leadership - Innovative partnership - Economic performance - Technology or technical excellence - Appropriate siting and scale - Community involvement/ social benefits provided (e.g. addresses fuel poverty) BIOCOGEN: EXISTING FLAGSHIP – Austria (C) Biomass CHP Plant Reuthe Reuthe Vorarlberg AUSTRIA VKW Kaufmann Reuthe Vorarlberger Kraftwerke AG Weidachstraße 6 A-6900 Bregenz, Österreich +43 5574 601 0 +43 5574 601500 www.vol.at/vkw contact: [email protected] BACKGROUND The plant in Reuthe, which is the first cogeneration system of this kind in Austria, is a model for other similar projects. The biomass CHP plant in Reuthe was built in 1995 and put into operation in 1996. It is designed to · utilize the fuel with an optimal efficiency, · reach a significant reduction of emissions in comparison to the previous system, · ensure operation at reasonable costs, · enable the combustion of waste wood nearly without a need for processing and · to cover the heat demand of the local district heating net and the process heat demand of the local industry TECHNICAL INFORMATION The Fuel Transformation in the power plant includes the steam generation and cogeneration of electrictity and heat. The steam is produced in a boiler consisting of two autonomous burners, a moving grate burner and a muffle burner. Annual production district heat approx. 29 GWh (normal year ) grid electricity approx. 4.7 GWh Boiler steam mass flow 10 t/h steam temperature 445 °C steam pressure 32 bar Burner fuel input max. 10 MW range of power at muffle 2 to 10 MW range of power at grate 2 to 4 MW Fuel composition no bark, but partially water with small fuelwood glue 5% wood powder 30% sawdust coarse fuelwood 65% shavings moisture content wood chips lower heating value 8 to 12% atro input of small fuel-wood 4.5 to 4.8 kWh/kg input of coarse fuel-wood 2 200 kg/h fuel for pilot flame 1 100 kg/h fuel oil Turbine type counterpressure turbine electric power 1.265 MW Heat exchanger type condenser heat power 6.3 MW Flue gas particle separator multicyclon with electrostatic filter 3 flue gas volume flow 17 000 Nm /h (13% O2) flue gas temperature 170 °C Technical data of the CHP plant in Reuthe chipper Scheme of the stages of the biomass fuel cycle at the CHP Plant Reuthe FUEL SUPPLY Solid biomass (chips) 10 000 t/yr, capacity of 6.3MW heat / 1.3MW el. Investment costs: 4.5 Mio € Reasons for your choice as an examplar project. The reasons might relate to one or more of the following: - Innovative partnership - Economic performance - Environmental excellence (positive land use, minimal emissions etc.) - Appropriate siting and scale PUBLICATIONS: G. Jungmeier, G. Resch, J. Spitzer: „Environmental burdens over the entire life cycle of a biomass CHP plant“, Biomass and Bioenergy, Vol. 15, Nos4/5, 1998, Pergamon (311-323) BIOCOGEN: EXISTING FLAGSHIP – Austria (C) Biomass CHP Plant Reuthe Reuthe Vorarlberg AUSTRIA VKW Kaufmann Reuthe Vorarlberger Kraftwerke AG Weidachstraße 6 A-6900 Bregenz, Österreich +43 5574 601 0 +43 5574 601500 www.vol.at/vkw contact: [email protected] BACKGROUND The plant in Reuthe, which is the first cogeneration system of this kind in Austria, is a model for other similar projects. The biomass CHP plant in Reuthe was built in 1995 and put into operation in 1996. It is designed to · utilize the fuel with an optimal efficiency, · reach a significant reduction of emissions in comparison to the previous system, · ensure operation at reasonable costs, · enable the combustion of waste wood nearly without a need for processing and · to cover the heat demand of the local district heating net and the process heat demand of the local industry TECHNICAL INFORMATION The Fuel Transformation in the power plant includes the steam generation and cogeneration of electrictity and heat.