Abstract
The aim of this study was to determine the energy properties of fuelwood samples which are preferred and used by local communities. The study used both cross-sectional survey of households and field survey. Systematic household sampling was used for household and random sampling for tree species. The chosen sample sizes for households in the study were 134. The cross-sectional survey of the local community on orderly preference of fuelwood consumption listed Acacia nilotica, Acacia etbaica, Olea africana, Acacia seyal, and Acokanthera schimperi. However, for the laboratory result and detail principal component analysis (PCA) of tree species in their density and moisture, ash, volatile, and fixed carbon contents, Olea africana was strongly recommended for fuelwood preference followed by Acacia nilotica, Acacia etbaica, Acacia seyal, and Acokanthera schimperi. The identification of community preference and scientific assessment on fuelwood consumption on different tree species will enhance the expansion of their plantation program in the region.
Highlights
Energy constitutes one of the most important aspects of human life
After each preferred tree species was dried up to four weeks at a temperature of 18°C to 27°C, the moisture content was lost by each species: O. africana 14.61%, A. nilotica 16.25%, A. etbaica 18.35%, A. seyal 24.34%, and A. schimperi 27.44%
The experimental result proved that O. africana holds the highest fixed carbon content as seen in Table 2, whereas A. schimperi holds the least fixed carbon content in it
Summary
Energy constitutes one of the most important aspects of human life. Despite the various source of energy in developing countries, it is estimated that approximately 2.5 billion people rely on biomass fuels to meet their cooking, heating, and lighting needs. For many of these countries, more than 90 percent of total household fuel is biomass [2]. In Ethiopia, 92% of the total energy consumption came from traditional fuel [4]. The number of people that rely on biomass fuels is expected to increase to 2.7 billion by 2030 (about one-third of the world’s population) due to population growth [5]
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