Title:
Characterization of the Fuel Bed Combustion of Wood Residues in a 4 MW Grate Boiler
Author(s):
Razmjoo, N., Hermansson, S., Strand, M.
Document(s):
Paper
Poster
Abstract:
Information about distributions of temperature and gas species within the fuel bed is of great importance in studying the formation of pollutants in an industrial-scale biomass boiler. The main objective of this study was to investigate the gas composition and temperature in some available sections of the fuel bed of a 4 MW reciprocating grate boiler, burning mixture of fresh pine wood chips, bark, and sawdust with two significantly different moisture content levels. The averageCO, CO2,CH4, and O2 concentrations measured during the combustion of the more moist fuel (about 60 mass %) were about 12, 12, 2, and 4 vol. %, respectively, whereas the corresponding values for the less moist fuel (about 45 mass %) were about15, 10, 2.5, and 5 vol. %, respectively. Higher concentration of CO and lower concentration of CO2 for the less moist fuel could originate either from the char conversion process or from the reactions of the devolatilizationgas products.
Keywords:
biomass, moisture, grate combustion, fuel bed, experimental, gas concentration
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Biomass combustion in large utilities
Event:
23rd European Biomass Conference and Exhibition
Session:
2BV.2.49
Pages:
741 - 744
ISBN:
978-88-89407-516
Paper DOI:
10.5071/23rdEUBCE2015-2BV.2.49
Price:
FREE
