Fraunhofer Institute for Environmental, Safety, and Energy Technology UMSICHT
Osterfelder Straße 3
Dr. Wilhelm Althaus – project manager
Telephone: +49 (0) 208 8598-1186
Esther Stahl – project coordination
Telephone: +49 (0) 208 8598-1158
Available only in German.
The decentralized use of biomass for combined heat and power (CHP) will become considerably more important by means of new technologies. The major part of available biomass can be used in small local heating networks or in bigger complexes of buildings to generate heat and at the same time electricity in an almost CO2-neutral way without increasing pollutant emissions.
The aim of the project is to develop a concept of a biomass-fired CHP-plant with emission control up to a power range of 1000 kWth. The power generation should be realized by ORC-technology (Organic-Rankine-Cycle). In order to complete the innovative concept it is planned to clean the exhaust gas while at the same time recovering the condensation heat of the ORC-process.
First, a process and security concept is worked out for integrating a mini-ORC-process into biomass combustion appliances. At the same time experiments to investigate the design of the heat transfer areas are carried out. A main task is to examine possibilities to prevent of fouling on the the heat exchanger areas. The concept is rounded off by tests of an of an exhaust gas scrubber integrated into the heating cycle. Finally a design of a pilot plant in cooperation with a supplier of small biomass incinerations is planned.