BMWi-project: BioWasteStirling

bmwiBMWi-project: BioWasteStirling – Power generation out of biogenous residuals by means of a stirling engine with liquified bed combustion

Im Projekt BioWasteStirling wird die Nutzung biogener Reststoffe im biomassegefeuerten Stirlingmotor zur Kraft-Wärme-Kopplung untersucht.

Support Code: FKZ 03KB122

Term: 09/01/2017 – 08/31/2020


Projektträger Jülich


Bundesministerium für Wirtschaft und Energie


Förderprogramm Energetische Biomassenutzung


Stadtwerke Wunnsiedel GmbH (SWW)

Technologie- und Förderzentrum (TFZ Straubing)


Assoziierter Partner:

Frauscher Thermal Motors GmbH

The decentralization of the power and energy market in Germany requires the development and growth of efficient micro-scale solutions for combined heat and power (CHP). Within the scope of the research at EVT a fluidized bed fired stirling engine was assembled as lab scale plant and basic lab tests were carried out.

Abb 1: CFD-simulation of a horizontal cyclone


The project “BioWasteStirling“ responses to this concept. Its purpose is to develop a highly efficient and fuel-flexible micro CHP system, consisting out of a fluidized bed combustion with an integrated stirling engine, and prove it during a field test within a pilot-scale power range of 5 kWel.

Furthermore, the big advantage of fluidzed bed combustions – the high fuel flexibility – shall be demonstrated for the first time in the small power range of combustion plants by using different biogenic solid fuels in the field test.

Besides the legal and economical analysis of different application scenarios of the micro CHP plant, also further numerical and experimental development of the particle separation by horizontal cyclones with regard to dust emissions takes place.



Abb 2: CFD-simulation of the heating surface of the stirling engine in the fluidized bed



Tanja Schneider, M. Sc.

Department of Chemical and Biological Engineering
Lehrstuhl für Energieverfahrenstechnik