Title:
Environmental and Energetic Performance History and Further Improvement Potential for Wood Stoves
Author(s):
Skreiberg, Ø., Seljeskog, M., Karlsvik, E.
Document(s):
Paper
Abstract:
The objective of this work is to 1) review the environmental and energetic performance history for wood stoves, with special focus on the last 15 years, and 2) evaluate the further improvement potential for wood stoves. The introduction of the Norwegian wood stove testing standard, NS 3058/3059, in 1998 introduced an emission limit for particles of 10 g/kg dry wood for new wood stoves. From this moment in time the staged combustion air units, with both primary and secondary air addition, have completely dominated the wood stove market. These wood stoves also have the potential to perform energetically much better than old types of wood stoves, due to better combustion air control, reducing the overall excess air ratio. However, during the last 15 years, continuous improvements have resulted in wood stoves with much reduced particle emission levels, approaching 80% particle reduction compared to the 10 g/kg dry fuel emission limit, in commercial wood stoves. This work is part of the StableWood project (New solutions and technologies for heating of buildings with low heating demand: Stable heat release and distribution from batch combustion of wood), lead by SINTEF Energy Research and financed by the Research Council of Norway and four industry partners. StableWood focus on new solutions and technologies for heating of buildings with low heating demand and specifically batch combustion of wood and the increased need for stable heat release and distribution from wood log combustion in wood stoves and closed fireplaces. Low load wood stoves and fireplaces in new buildings demand new technologies and solutions with an increased focus on the combustion process and its control, the combustion quality and optimum design to ensure low emissions and high energy efficiency. The goal is to, in new low load wood stoves developed for buildings with low heating demand, maintain or even further reduce the particle emission levels achieved for the larger units, while at the same time achieving a high energetic performance.
Keywords:
efficiency, emissions, wood logs, wood stoves, performance history, improvement potential
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Solid biofuel combustion for small and medium scale applications
Event:
20th European Biomass Conference and Exhibition
Session:
2CV.4.20
Pages:
1305 - 1310
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-2CV.4.20
Price:
FREE
