Evaluation of Fuel Properties of Six Tropical Hardwood Timber Species for Briquettes

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Mitchual, J Stephen
Frimpong-Mensah, Kwasi
Darkwa, Nicholas A.
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Journal of Sustainable Bioenergy Systems
The fuel potential of six tropical hardwood species namely: Triplochiton scleroxylon, Ceiba pen tandra, Aningeria robusta, Terminalia superba, Celtis mildbreadii and Piptadenia africana were studied. Properties studied included species density, gross calorific value, volatile matter, ash content, organic carbon and elemental composition. Fuel properties were determined using stan dard laboratory methods. The result indicates that the gross calorific value (GCV) of the species ranged from 20.16 to 22.22 MJ/kg and they slightly varied from each other. Additionally, the GCV of the biomass materials were higher than that of other biomass materials like; wheat straw, rice straw, maize straw and sugar cane. The ash and volatile matter content varied from 0.6075 to 5.0407%, and 75.23% to 83.70% respectively. The overall rating of the properties of the six bio mass materials suggested that Piptadenia africana has the best fuel property to be used as bri quettes and Aningeria robusta the worse. This study therefore suggests that a holistic assessment of a biomass material needs to be done before selecting it for fuel purpose.
Mitchual, S. J., Frimpong-Mensah, K., & Darkwa, N. A. (2014). Evaluation of fuel properties of six tropical hardwood timber species for briquettes. Journal of Sustainable Bioenergy Systems, 2014.