Akademik Veri Yönetim Sistemi
Biomass Conversion and Biorefinery, cilt.13, sa.14, ss.13267-13278, 2023 (SCI-Expanded)
Hazelnut husk residues have a big energy potential. In this study, the possibilities of using the agricultural residues released after the harvesting and threshing processes of the hazelnut plant as solid biofuel were investigated. A new design hydraulic type of press with an adjustable compaction pressure between 0 and 240 MPa and a mold diameter of 50 mm was used in this study. Solid briquettes were obtained at six different compaction pressures (25, 50, 75, 100, 125, and 150 MPa), two different particle sizes (2–5 mm and 7–10 mm), and approximately 8–10% moisture content. Compaction process was performed without using any additive material. The densities of the briquettes varied between 705.49 and 1348.65 kg.m−3 on a wet basis. The physical parameters of the obtained briquettes were determined, including density, tumbler and shatter resistance, briquette firmness, capacity, and specific energy consumption. The data obtained as a result of the study were subjected to statistical analysis results (PCA and ANOVA) and tried to be evaluated. The results of physical and mechanical tests showed that the briquettes are of extremely high quality. The compaction pressure and moisture content values were found to be significant on the volume weights of the briquettes (p < 0.01). The average highest briquette density (1325.21 kg.m−3), briquette firmness (1742.30 N), tumbler test (95.16%), and shatter test (86.90%) values were obtained at 150 MPa compaction pressure and 2–5 mm particle size compaction. The average highest capacity (6.45 kg.h−1) values were obtained at 125 MPa compaction pressure and 2–5 mm particle size, and the average lowest specific energy consumption (0.19 kWh.kg−1) values were obtained at 150 MPa compaction pressure and 2–5 mm particle size. According to the results obtained, it was concluded that the pressure and particle size had a significant effect on the solid biofuel properties of the hazelnut shell briquettes; the most effective pressure value was 150 MPa, and the most effective particle size was 2–5 mm.