Research Article
Physicochemical Characterization of Representative Firewood Species Used for Cooking in Some Colombian Regions
Table 4
Physicochemical properties of firewood species (±standard deviation).
| | | Firewood species | | | Gua | Nog | Euc | Pat |
| | Ultimate analysis | | | C | 49.1 (0.7) | 49.2 (0.2) | 51.0 (0.2) | 47.2 (0.6) | | H | 5.8 (0.2) | 5.8 (0.1) | 6.1 (0.1) | 6.2 (0.1) | | N | ND | ND | ND | 0.3 (0.01) | | | 45.1 (0.5) | 45.0 (0.1) | 42.9 (0.3) | 46.3 (0.4) |
| | Proximate analysis | | | Volatile matter | 80.92 | 81.75 | 81.66 | 84.11 | | Fixed carbon | 17.28 | 16.72 | 17.17 | 15.49 | | Ash | 1.80 | 1.53 | 1.17 | 0.40 |
| | Moisture (% wt.) | 7.99 | 7.41 | 10.28 | 8.55 |
| | Physical properties | | | Bulk density (kg/m3) | 138.26 (1.70) | 169.70 (2.50) | 221.83 (4.11) | 196.42 (3.66) | | Particle density (kg/m3) | 381 (71) | 404 (42) | 734 (36) | 670 (56) | | Packing factor (–) | 0.363 (0.072) | 0.420 (0.050) | 0.303 (0.020) | 0.293 (0.030) | | Sphericity (–) | 0.70 | 0.63 | 0.62 | 0.72 | | Hardness shore D (–) | 45.8 (1.3) | 50.0 (2.0) | 59.4 (0.9) | 49.0 (1.2) |
| | Energy property | | | (kJ/kg) | 16819 (91) | 18157 (38) | 17795 (90) | 17646 (143) |
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Comments: ultimate analysis (% w/w); , dry ash free basis. estimated by difference. analysis on dry basis.
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