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Break-through development of an innovative thermo-electrical stirling converter to qualify for reliable utilization with solar/biomass derived energy

Exploitable results

Stirling engines are a reasonably well-developed technology, offering potential for application in the generation of energy from biomass. This project has led to the adaptation of an existing prototype Stirling converter to enable it to be powered by biomass energy, and thus represents an important breakthrough in this field. Biogas, one of the fuels derived from biomass, can be used to generate electricity using a variety of conversion technologies. The aim of this project was to develop an innovative thermo-electrical Stirling converter powered by biomass energy to be tested in an operating biomass converting system. The Stirling engine with its external combustion, can avoid many of the disadvantages of conventional technologies, typically gas engines with internal combustion. The comparative advantages of Stirling engines include long lifetime, low maintenance needs and low noise emissions. The main criteria for the engine developed in this project were that it had to be reliable and suitable for operation in stand-alone conditions. The basic prototype of the Stirling system was already available, developed by Heidelberg Motors over recent years, and it was the final breakthrough in engine development and its specialisation for biomass that were the main objectives of this project.

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