| Journal: | Maderas : ciencia y tecnología |
| Database: | |
| System number: | 000544657 |
| ISSN: | 0718-221X |
| Authors: | Torres Fuchslocher, Carlos1 Varas Concha, Felipe2 |
| Institutions: | 1Universidad de Talca, Facultad de Ingeniería, Talca. Chile 2Pontificia Universidad Católica de Chile, Santiago. Chile |
| Year: | 2015 |
| Season: | Abr |
| Volumen: | 17 |
| Number: | 2 |
| Pages: | 355-364 |
| Country: | Chile |
| Language: | Inglés |
| English abstract | Although advances have been made in combustion efficiency in large-scale woodchip furnaces, less experimental results are available at the <20 kW range. Compact feed systems, as well as optimized grates and combustor chambers, continue to represent a challenge for the wider use of low-cost wood chips. This study describes the design and testing of a small-scale woodchip furnace that operates at a range of 9-18 kW. The efficiency test takes account of the feedstock Eucalyptus nitens, with three moisture contents and the combination of different air excess (?) and primary/secondary air ratios. The results reveal a maximum of combustion efficiency of 85% for the low moisture content sample (16%) at ?=1,5 and 82% for samples with 29% and 40% moisture content, at ?= 2,0 and 2,1 respectively. The integrated heat exchanger proved to be highly efficient by reducing gas temperature by up to 69% prior to its exit. |
| Keyword: | Combustion efficiency, Fixed grate, Hearth appliances, Stove design, Wood chips |
| Full text: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
