Title:
Log Wood Combustion in Stoves - Influence on Emissions and Efficiency
Author(s):
Schön, C., Hartmann, H.
Document(s):
Paper
Abstract:
Variable wood log sizes and different fuel masses loaded per fuel batch were applied in three different residential stoves in order to evaluate user behaviour influences on operation, which are believed to be largely responsible for a great deal of pollutant emissions and efficiency variation. Pollutant emissions carbon monoxide(CO¬) and organic gaseous carbon (OGC)¬emissions as well as total particulate matter were determined from both undiluted and diluted flue gas which were released from two chimney stoves and one tiled stove insert. The results show, that too small logs (here wood pieces of 5 x 5 cm cross section) should not be used for the normal operation of a stove as CO and OGC emissions were about two to three times higher than for medium log sizes (i.e. 7 x 7 cm). In the same order these pollutant emissions increased when only one single log was charged per batch (low load operation). But stove overloading should also be avoided, here also the particle emissions increased by the order of two to three. Thermal efficiency is also greatly influenced by the loaded fuel mass with the low load (one single log) causing a decline of about 10 percentage points compared to the designated fuel mass per batch in both tested chimney stoves.
Keywords:
emissions, chimney stove, tiled stove insert, log size, fuel amount loaded, thermal efficiency
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.4.14
Pages:
1293 - 1298
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-2CV.4.14
Price:
FREE
