Efficiency of small-scale firewood processing operations in Southern Europe

Manzone, Marco; Spinelli, Raffaele

doi:10.1016/j.fuproc.2014.01.025

Cited by 21 publications

(11 citation statements)

References 25 publications

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“…Hourly fuel consumption is proportional to the tractor's engine power [31]. High values were obtained for planters coupled to tractors with a high nominal power.…”

Section: Discussionmentioning

confidence: 99%

Energy and CO2 emissions associated with mechanical planters used in biomass plantations

Manzone

2016

Biomass and Bioenergy

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Until now, SRC has been studied from many points of view (economic sustainability, environmental impact, harvesting systems, etc.), but few studies of the actual planting operations have been carried out. The objective of this study was to evaluate the energy input and CO2 emission were evaluated during very Short Rotation Coppice (vSRC) planting. The analysis was performed considering different planter types and tree species (poplar, willow and black locust). This work showed that the energy input and CO 2 emission of vSRC planting is linked to different planter types and, consequently, to the type of planting material used (rods, cuttings and rooting plants). Among the combinations tested, rods planters showed the lowest value for energy consumption (356 MJ ha-1) and CO 2 emission (31 kg ha-1) compared to universal planters type (1,028 MJ ha-1 and 92 kg ha-1). No difference between tree species was observed in this experiment. Results highlighted that the energy input required by the planting operation is only 1.7% of the total energy input of the vSRC.

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“…Hourly fuel consumption is proportional to the tractor's engine power [31]. High values were obtained for planters coupled to tractors with a high nominal power.…”

Section: Discussionmentioning

confidence: 99%

Energy and CO2 emissions associated with mechanical planters used in biomass plantations

Manzone

2016

Biomass and Bioenergy

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“…Indirect energy inputs were defined by multiplying the energetic value embedded in tools and machines [44,45] deployed in the recovery phase by their mass, dividing by total service life and finally multiplying by the amount of its operation hours [46]. On the other hand, direct energy inputs were calculated by multiplying the amounts of consumed fuel/lubricant and its energetic values (51.50 MJ·kg −1 for diesel and 83.7 MJ·kg −1 for lubricants) [46,47]. Fuel consumption was estimated based on the refilling of the tractor after finishing of the baling process (start and finish of works on one hectare) [48].…”

Section: Energy Analysismentioning

confidence: 99%

Harvesting and Baling of Pruned Biomass in Apple Orchards for Energy Production

Dyjakon

2018

Energies

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Pruning residues belong to the agricultural wastes generated in the agro-food processing sector, whose energetic potential can have a significant influence on the local energy market. This study is focused on the assessment of the feasibility of using apple tree pruning residues in the form of bales for energetic purposes. The research was performed in a commercial apple orchard located in the central-western part of Poland, an area characterized by the largest concentration of apple orchard in Europe. The biomass yield, pruned bales quality, energy input and output flow, as well as the economic sustainability of the pruning-to-energy strategy were evaluated. The results indicated the available collected biomass potential in an amount of 0.69 t DM ·ha −1 per year. Pruned biomass analysis showed a moisture content of 45.1% in the fresh material, the ash content was 0.8% dry mass, and the lower heating value was 18.05 MJ·kg −1 dry mass. Total production cost, including all steps and avoided cost of mulching, was 74.7 €·t −1 dry mass. Moreover, the net energy balance of this value chain was very positive, giving a value of ca. 12,000 MJ·ha −1 per year. As a result, the yearly harvested pruned biomass may be considered a good energy source for local heating systems.

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“…With this method, fuel consumption was determined by refilling the machine tank after each trailer (35 m 3 ) was produced. The tank was refilled using a 2-l glass pipe with 0.02-l graduations, corresponding to the accuracy of measurements [43]. The lubricant consumption was determined as a function of fuel consumption in a measure of 2% [44].…”

Section: Energy Consumptionmentioning

confidence: 99%

Efficiency of small-scale firewood processing operations in Southern Europe

Cited by 21 publications

References 25 publications

Energy and CO2 emissions associated with mechanical planters used in biomass plantations

Energy and CO2 emissions associated with mechanical planters used in biomass plantations

Harvesting and Baling of Pruned Biomass in Apple Orchards for Energy Production

Energy consumption and CO 2 analysis of different types of chippers used in wood biomass plantations

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