Journal ArticleDOI
Effect of raw material composition in woody biomass pellets on combustion characteristics.
TLDR
In this paper, the combustion time for a single pellet mostly depended on the raw material composition and to a minor extent on the density of the pellet, and it was found that a single wood pellet had up to a 50% longer char combustion time compared to that of stem wood pellets, due to differences in char yield.Abstract:
Char yield, char combustion time and char combustion rate of pellets made from different tree parts of Norway spruce and industrially made stem wood pellets of Norway spruce and Scots pine were studied. The pellets were incinerated in a laboratory scale oven at various temperatures, gas flows and oxygen concentrations. It was found that the combustion time for a single pellet mostly depended on the raw material composition and to a minor extent on the density. Pellets made of bark had up to a 50% longer char combustion time compared to that of stem wood pellets, due to differences in char yield. Industrially made stem wood pellets of pine and spruce sawdust were found to have small differences in combustion characteristics. The variations in combustion characteristics of pellets are discussed in relation to composition of raw material.read more
Citations
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Journal ArticleDOI
Thermal analysis and devolatilization kinetics of cotton stalk, sugar cane bagasse and shea meal under nitrogen and air atmospheres.
TL;DR: Shea meal exhibited a complex char combustion behaviour indicating that there may be two distinct types of char derived from fibrous and woody components in the original material.
Journal ArticleDOI
Thermogravimetric studies of the behavior of wheat straw with added coal during combustion.
TL;DR: In this article, the combustion behavior of biomass and coal blends under typical heating conditions was investigated, and the effects of a cold molding procedure for wheat straw on the burning properties were investigated.
Journal ArticleDOI
Mechanical durability and combustion characteristics of pellets from biomass blends
TL;DR: Biofuel pellets were prepared from biomass (pine, chestnut and eucalyptus sawdust, cellulose residue, coffee husks and grape waste) and from blends of biomass with two coals (bituminous and semianthracite).
Journal ArticleDOI
Pelleted biochar: Chemical and physical properties show potential use as a substrate in container nurseries
TL;DR: The authors found that peat moss, amended with various ratios of pellets comprised of equal proportions of biochar and wood flour, generally had chemical and physical properties suitable for service as a substrate during nursery production of plants.
Journal ArticleDOI
Effects of raw material particle size distribution on the characteristics of Scots pine sawdust fuel pellets
Dan Bergström,Samuel Israelsson,Marcus Öhman,Sten-Axel Dahlqvist,Rolf Gref,Christoffer Boman,Iwan Wästerlund +6 more
TL;DR: In this paper, the influence of raw material particle size distribution on the pelletizing process and the physical and thermomechanical characteristics of typical fuel pellets, were studied in the case of saw dust.
References
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BookDOI
The Handbook of Biomass Combustion and Co-firing
Sjaak van Loo,Jaap Koppejan +1 more
TL;DR: In this article, the basic principles of biomass fuel properties and basic properties of bio-combustion systems are discussed and a detailed overview of the technologies for industrial and district heating systems is presented.
Journal ArticleDOI
Quality properties of pelletised sawdust, logging residues and bark
TL;DR: In this paper, nine pellet assortments, made of fresh and stored sawdust, bark and logging residues (a mixture of Norway spruce and Scots pine) were tested for moisture content, heating value and contents of ash, sulphur, chlorine and Klason lignin.
Foliar analysis for detecting and correcting nutrient imbalances in Norway spruce
TL;DR: In this article, Linder et al. used a foliase analysis for detecting and correcting nutrient imbalances in Norway spruce in the first seven years of a nutrient optimisation experiment.
Journal ArticleDOI
Rapid high-temperature pyrolysis of biomass in a free-fall reactor
TL;DR: In this article, the effects of heating rate, temperature, particle size and residence time on the product distribution, gas composition and char reactivity in a free-fall pyrolysis of biomass, wood and agricultural residues were investigated.
Journal ArticleDOI
Chemical elemental characteristics of biomass fuels
TL;DR: A compilation of literature on chemical elemental characteristics of 280 samples of biomass fuels, including waste and peat, is presented in this article, where the compositions of the compiled fuel samples were further classified by principal component analysis with special respect to elements important for ash and deposit formation.
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