Title:
Combining Solid Biomass Combustion and Stirling Technology
Author(s):
Senkel, N., Siemers, W.
Document(s):
Paper
Poster
Abstract:
Renewable energy is needed in different forms and for different purposes to fulfil the demands created by problems out of climate change and by dwindling fossil energy resources. Biomass is highly versatile for using it for heat, power and even fuel applications. Although the term renewable suggests an unlimited availability, the conversion process and utilization paths should be as efficient as possible. There is also a deficit of proven technologies, especially in small-scale gasification and use of producer gas in internal combustion engines. One concept favoured in a recent project is the connection of a wood chip furnace with a Stirling engine. Because the direct exposure of the Stirling head causes numerous problems, the solution is sought in designing an indirect heat transfer system. The main challenge is the temperature level, which should be reached for high electrical efficiencies. Temperatures above 1,200°C at the biomass combustion side are needed for an efficient heat transfer at some 850°C at the Stirling engine like our measurements shows. Measurements on both installations have been conducted and analysed. After this, the design phase was started and final the choice on the design has been taken. Now the first technical solution of a high temperature heat exchanger is designed and must constructed and tested.
Keywords:
alternative energy, biomass, combined heat and power generation (CHP), wood chips, stirling engine, decentralised, high temperature heat exchanger
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Solid biofuel combustion for small and medium scale applications
Event:
21st European Biomass Conference and Exhibition
Session:
2DV.3.3
Pages:
1070 - 1074
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-2DV.3.3
Price:
FREE
