Bamboo and agricultural residue pellets as a source of biomass energy.
As a result of overpopulation and the depletion of natural energy resources, global energy demand has grown leading to the exploration of alternative energy sources. Biomass is one of the alternative energy sources, which could be used in different states of matter and in distinct sectors. Agricultural wastes from crop residues as well as agro-industrial by-products are potential sources of biomass. When subjected to a densification process such as pelletization, these raw materials are transformed into a more economical source of biomass energy. The objective of this project is to develop pellets from bamboo (BB), bamboo mixed with agricultural residues such as pineapple leaves (PB) and coconut fiber (CB) as alternative biomass energy for combustion. A commercial pellet was used as a reference (RF). Formulation of the pellets involved preparation of the raw material, pelletization and evaluation of physical and chemical properties. The parameters evaluated were: pellet length (cm), bulk, compacted and loose density (kg/m3), durability (%), ash content (%) and calorific value (kJ/g). CB had the highest moisture content with 26.80 % and RF had the lowest at 7.13 %. There was no significant difference between the four treatments in terms of ash content. PB had the highest durability after 10 minutes of agitation (98.3 %). There was no significant difference in the durability of the pellets after 20 minutes of agitation. PB had the highest bulk density (1064 kg/m3). The calorific value of BB and RF were highest, presenting an average value of 16.986 kJ/g. The calorific value of the three evaluated substrates are satisfactory and they can therefore be exploited as a source of biomass energy based on this criterion.
| Main Authors: | , |
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| Other Authors: | |
| Format: | info:eu-repo/semantics/bachelorThesis biblioteca |
| Language: | eng |
| Published: |
Universidad EARTH
2019-12
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| Subjects: | BAMBUES, PELETIZACION, RESIDUOS DE COSECHAS, PASTILLAS, RECURSOS ENERGETICOS, FUENTES DE ENERGIA, BIOMASA, https://purl.org/pe-repo/ocde/ford#4.01.01, |
| Online Access: | https://repositorio.earth.ac.cr/handle/UEARTH/312 |
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| Summary: | As a result of overpopulation and the depletion of natural energy resources, global energy demand has grown leading to the exploration of alternative energy sources. Biomass is one of the alternative energy sources, which could be used in different states of matter and in distinct sectors. Agricultural wastes from crop residues as well as agro-industrial by-products are potential sources of biomass. When subjected to a densification process such as pelletization, these raw materials are transformed into a more economical source of biomass energy. The objective of this project is to develop pellets from bamboo (BB), bamboo mixed with agricultural residues such as pineapple leaves (PB) and coconut fiber (CB) as alternative biomass energy for combustion. A commercial pellet was used as a reference (RF). Formulation of the pellets involved preparation of the raw material, pelletization and evaluation of physical and chemical properties. The parameters evaluated were: pellet length (cm), bulk, compacted and loose density (kg/m3), durability (%), ash content (%) and calorific value (kJ/g). CB had the highest moisture content with 26.80 % and RF had the lowest at 7.13 %. There was no significant difference between the four treatments in terms of ash content. PB had the highest durability after 10 minutes of agitation (98.3 %). There was no significant difference in the durability of the pellets after 20 minutes of agitation. PB had the highest bulk density (1064 kg/m3). The calorific value of BB and RF were highest, presenting an average value of 16.986 kJ/g. The calorific value of the three evaluated substrates are satisfactory and they can therefore be exploited as a source of biomass energy based on this criterion. |
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