Research Article
Production and Characterization of Sawdust Briquettes for Firewood Substitution
@INPROCEEDINGS{10.1007/978-3-030-80621-7_1, author={Muluken Mengist and Belay Woldeyes and Nigus Gabbiye}, title={Production and Characterization of Sawdust Briquettes for Firewood Substitution}, proceedings={Advances of Science and Technology. 8th EAI International Conference, ICAST 2020, Bahir Dar, Ethiopia, October 2-4, 2020, Proceedings, Part I}, proceedings_a={ICAST}, year={2021}, month={7}, keywords={Sawdust Briquette Density Calorific value}, doi={10.1007/978-3-030-80621-7_1} }- Muluken Mengist
Belay Woldeyes
Nigus Gabbiye
Year: 2021
Production and Characterization of Sawdust Briquettes for Firewood Substitution
ICAST
Springer
DOI: 10.1007/978-3-030-80621-7_1
Abstract
The possibility of substitution of firewood by sawdust briquettes was examined. Easy to operate and portable homemade briquetting machine was fabricated. Three internal diameters of molding cylinder/die diameters specifically 6, 8 and, 10 cm were used to examine the effect of pressure on the quality of sawdust briquettes. For all types of sawdust briquettes, the highest and lowest values of density, porosity index, volatile matter, ash content, fixed carbon, and calorific value are 218.2–322.6 kg/m3, 34–312.4%, 70.2–90.6%, 2.3–7.3%, 6.7–24.3% and 14.5–18.4 MJ/kg respectively. The figured physical and chemical properties of sawdust briquettes were interesting. The density and porosity index of sawdust briquettes were extensively affected by molding cylinder diameter and waste paper percentage. An interesting quality of sawdust briquettes was attained at lower particle dimension, waste paper percentage and higher pressure. The optimum value of density, porosity index, percentage volatile content, percentage ash content and gross calorific value of 306.1 kg/m3, 35.9%, 83.9%, 3.1% 17.1 MJ/kg respectively were acquired at a combination of die diameter of 6 cm and waste paper percentage of 25%. The capability of production of sawdust briquettes with good quality using only waste paper as a binder is an encouraging fact and the briquettes can be excellent augments to firewood.
