Storage of whole-tree chips from high-density energy plantations of Eucalyptus in Brazil

Eufrade-Junior, Humberto de Jesus; Oguri, Guilherme; Melo, Raoni Xavier de; Ballarin, Adriano Wagner; Guerra, Saulo Philipe Sebastião

doi:10.1016/j.biombioe.2016.07.009

Cited by 6 publications

(5 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Alguns estudos já comprovaram a melhor qualidade de grãos de café como exemplo, plantados em sistemas agroflorestais em consórcio com Eucalyptus spp., que favorecidos pela sombra, resultarão em uma produtividade mais contínua e sustentável (Ehrenbergerová et al 2016;Petit-Aldana et al 2017). Para plantios mais adensados há uma maior quantidade de biomassa por área, o que pode favorecer uma rotação mais curta de plantio, assim como um retorno financeiro a curto prazo (Eufrade Junior et al 2016).…”

Section: Excentricidade Da Medulaunclassified

Caracterização Macroscópica Do Fuste De Eucalipto Em Diferentes Densidades De Plantio

Santos,

Monteiro,

Klitzke

et al. 2024

Rev. Foco

View full text Add to dashboard Cite

Foram analisados a distribuição de medula, cerne e casca em fustes de quatro diferentes materiais de Eucalyptus de sete anos de idades, plantados em três diferentes espaçamentos na região Centro-Oeste do Brasil. Foram utilizadas três árvores para cada um dos três espaçamentos (1058, 546 e 404 árvores.ha-1) e para cada um dos quatro clones (três materiais genéticos de Eucalyptus urophylla x Eucalyptus grandis e um de Eucalyptus saligna) , totalizando 32 árvores. Cinco discos extraídos de cada árvore foram analisados para se determinar as espessuras das cascas, diâmetro do cerne e deslocamento da medula. Os clones A e B (ambos de E. urophylla x E. grandis) se mostraram com a maior porcentagem de cerne e menor espessura de casca, seguido pelo material genético D (E. saligna), o qual teve a maior espessura de casca, e C (E. urophylla x E. grandis), com a menor porcentagem de cerne. Maiores densidades de plantio resultaram em maiores porcentagem, assim como maiores espessuras de casca, com exceção do clone C de E. urophylla x E. grandis, que não apresentou maiores quantidades de cerne independente da densidade do plantio. A quantidade de cerne até 25% de altura se manteve constante para todos os clones, enquanto a espessura de casca ia diminuindo da base para o topo. Independendo do material genético, espaçamento entre árvores e posição longitudinal no fuste não houve alterações significativas para a excentricidade da medula.

show abstract

Section: Excentricidade Da Medulaunclassified

Caracterização Macroscópica Do Fuste De Eucalipto Em Diferentes Densidades De Plantio

Santos,

Monteiro,

Klitzke

et al. 2024

Rev. Foco

View full text Add to dashboard Cite

show abstract

“…The drying of wood is characterized by two outflows of water (capillary and diffusion movement), which occur simultaneously during the process. As discussed in the literature [48,49], initially, moisture is reduced predominantly by capillary movement (free or capillary water) up to the fiber saturation point (FSP) and, subsequently, hygroscopic or impregnation water (adsorbed to the cell walls) is released by diffusion movement. Thus, the moisture loss in chip piles is lower than in logs in tropical conditions, since there is a lack of ventilation inside the piles to maintain capillary movement for longer, which also favors a greater MC gradient from the interior to the edge of the pile.…”

Section: Wood Moisture Content During Storagementioning

confidence: 99%

“…The results show that supplying the thermoelectric plant is more expensive in Supply Chain I, which is explained by the higher demand for biomass due to its high MC regardless of the storage time in the field. Some studies have suggested that one way to reduce this cost is to store and protect the wood chips using some form of cover [48].…”

Section: Forest Operational Costsmentioning

confidence: 99%

The Impact of Wood Moisture Content on the Productivity and Costs of Forest Energy Supply Chains in Southeast Brazil

Leonello,

Acuna,

Brown

et al. 2024

Forests

Self Cite

View full text Add to dashboard Cite

Using wood for power generation necessitates a more efficient production chain in the various steps: harvesting, forwarding, storage, chipping, transport, and conversion systems. In this context, the moisture content (MC) of wood can impact the harvesting operation, the volume to be chipped, the transportation of raw materials, the storage time, and other factors, thereby influencing the economic aspects of the chain. The primary objective of this study is to investigate the influence of wood moisture content on the yield and costs of different forest operation chains for power generation in São Paulo State, Brazil. Our findings reveal that harvesting and forest transport are the primary cost components (over 80%) in the supply chains under study. We observed a difference of up to 17.6% in the unit cost of the energy generated among the studied supply chains. In economic and sustainable terms, our results suggest that logs should be stored in the field for three to four months and the transport distance to the power plant should not exceed 100 km.

show abstract

“…Chipping increases the bulk density and facilitates transportation [102,104,[113][114][115]. For example, Pecenka et al [116] described the potential for deploying and adapting harvesting systems in Brazil for SRWCs, where there is existing experience in the development of equipment [97] and different drying methods in chip production [117].…”

Section: Energies 2019 12 X For Peer Review 9 Of 22mentioning

confidence: 99%

Short Rotation Wood Crops in Latin American: A Review on Status and Potential Uses as Biofuel

Moya

Oporto

2019

Energies

View full text Add to dashboard Cite

Studies related to biomass production, with a focus on energy uses for short-rotation woody crops (SRWCs), are limited in Latin America. The research that is available relates to a variety of tested SRWC species (50 species), however, the most important species are Populus, Salix, Eucalyptus, Acacia, and Gmelina arborea. In the existing studies, stocking densities varied from 1111 to 20,000 trees per hectare, with square or rectangular spacing. One important advantage of SRWC systems in this region, compared to most regions worldwide, is the predictability of biomass yields due to the tropical climate conditions of the majority of the Latin American countries. Rotations of three and four years can be projected to produce total biomass yields of 30–50 tons/ha, with increments of 10–20 tons/ha/yr. Fertilization is performed in SRWC with the aim of preventing soil degradation and maintaining further production. In regards to possible uses of biofuel generated from SRWC in Latin America, an inconvenience is that there are neither well-established harvesting systems nor conventional pre-treatments to process the biomass. Processes that are available in the region that use biomass from SRWC for energy production are gasification and pellet production. Other potential biofuel processes, such as torrefaction and biochemical conversion, are limited in this area.

show abstract

Storage of whole-tree chips from high-density energy plantations of Eucalyptus in Brazil

Cited by 6 publications

References 15 publications

Caracterização Macroscópica Do Fuste De Eucalipto Em Diferentes Densidades De Plantio

Caracterização Macroscópica Do Fuste De Eucalipto Em Diferentes Densidades De Plantio

The Impact of Wood Moisture Content on the Productivity and Costs of Forest Energy Supply Chains in Southeast Brazil

Short Rotation Wood Crops in Latin American: A Review on Status and Potential Uses as Biofuel

Contact Info

Product

Resources

About