Title:
Biomass Conversion with a Fluidized Bed-Fired Stirling Engine in a Micro-Scale CHP Plant
Author(s):
Schneider, T., Müller, D., Karl, J.
Document(s):
Paper
Poster
Abstract:
Small-scale solutions for efficient conversion of biogenic residues are challenging, as high combustion temperatures in conventional grate furnaces often exceed ash melting temperatures and thus tend to slagging and fouling of colder surfaces, e.g. heat exchangers. To face this problem, the Chair of Energy Process Engineering (EVT) at Friedrich-Alexander University Erlangen-Nürnberg developed an innovative micro-scale CHP plant concept combining a small fluidized bed combustion with a Stirling engine. In this way, an efficient cooling of the combustion zone through an in-bed heat exchanger (e.g. a Stirling engine) gets possible without exceeding ash melting temperatures. This goes along with another main advantage – namely the fuel flexibility of fluidized bed combustion. Tests in lab environment already show promising results regarding the Stirling performance and low emissions of carbon monoxide and dust. In the recently started project “BioWasteStirling” this concept will be transferred to a pilot plant scale for long-term testing with different woody fuels as well as various solid biogenic residues in a field test environment.
Keywords:
biomass, combined heat and power generation (CHP), pilot plant, decentralized generation, fluidized bed combustion, Stirling engine
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Biomass and bioliquids combustion for small and medium scale applications
Event:
26th European Biomass Conference and Exhibition
Session:
2BV.4.9
Pages:
630 - 634
ISBN:
978-88-89407-18-9
Paper DOI:
10.5071/26thEUBCE2018-2BV.4.9
Price:
FREE
