Title:
Clean and Efficient Low Emission Micro-Scale Pellet Stove with Advanced Control
Author(s):
Mandl, C., Obernberger, I., Kössl, M., Lustenberger, D., Strebel, T., Winkler, D.
Document(s):
Paper
Abstract:
Biomass based room heating systems are very common for space heating throughout Europe. In Austria, biomass stoves represent 40% of the total number of installed single room heaters. Currently, a clear trend towards rising interest in clean heating systems with even lower nominal capacities prevails and thus, a constantly increasing market pressure due to competition with natural gas fired boilers/stoves as well as heat pumps is recognised. To make pellet stoves more competitive against these technologies, an innovative, low-cost low-emission micro-scale pellet stove with a significantly reduced nominal heating capacity of 1.3 to 4 kW has been developed within the ERA-NET-project “LowEmi-MicroStove”. Core elements of the new technology are a new pellet feeding system tailored to the demands of steady fuel transport at low fuel demands, a novel grate system and a CFD designed combustion chamber with an improved insulation strategy, which provides the basis for a low-emission combustion over a wide load range as well as an advanced control concept based on innovative sensor technology. Test runs results show that the gaseous and especially the particulate emissions of the new stove are on a very low level compared to state-of-the-art pellet stoves. The new technology is load flexibly adaptable between 1.3 and 4 kW due to fully automatic and highly efficient operation. With this new micro-scale pellet stove technology a technological milestone regarding clean micro-scale biomass combustion has been achieved. With this new technology, a significantly improved position of wood pellet stoves in the competition with fossil fuel fired boilers/stoves and heat pumps in the residential heating sector can be achieved.
Keywords:
emissions, pellet, wood, stove
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Advanced biomass combustion
Event:
30th European Biomass Conference and Exhibition
Session:
4AO.2.2
Pages:
544 - 552
ISBN:
978-88-89407-22-6
Paper DOI:
10.5071/30thEUBCE2022-4AO.2.2
Price:
FREE
