New shredding machine for recycling pruning residuals

Recchia, Lucia; Daou, Marco; Rimediotti, Marco; Cini, Enrico; Vieri, Marco

doi:10.1016/j.biombioe.2008.05.003

Cited by 31 publications

(10 citation statements)

References 1 publication

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“…The regular cut and the good particle size allowed high moisture losses to be reached in a short time during storage, rapidly reaching a value of moisture content which was lower than 20%, allowing direct pelleting and limiting dry matter losses due to microbial degradation. The harvester performance was comparable with other pruning harvesters for theoretical field capacity, but not for field efficiency [28,29]. The worst result was strongly affected by the high unloading time, because the machine filled up the small size bin very quickly.…”

Section: Discussionmentioning

confidence: 79%

Pelleting Vineyard Pruning at Low Cost with a Mobile Technology

Toscano

Alfano²,

Scarfone³

et al. 2018

Energies

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The goal of this work was to test a patented pruning harvester and a mobile pelleting system specifically designed for the vineyard agripellet chain. Biomass was characterized before and after storage and after the pelleting stage. The performance, the fuel consumption, and the work quality of the harvester were assessed together with the productivity and the power consumption of the mobile pelleting system. Production costs of pellet were estimated for the whole logistic chain, considering two scenarios: Storage and pelleting directly at the farm site or at a dedicated location at variable distance from the fields. For comparison, the direct production of chips without pelleting was considered. Results indicate that harvester performance was quite good and comparable with commercial solutions; the chips produced exhibited excellent storage performance, allowing direct pelleting without forced drying; the pellet quality was good comparable with that produced from forestry biomass. From an economic point of view, in-field pelleting was the most cost-effective solution, with a good margin of profit up to 57€ t−1; on the other hand, when transport to an intermediate storage center is necessary, profit margin reduces gradually and fades off at an average 50 km distance from the fields.

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Section: Discussionmentioning

confidence: 79%

Pelleting Vineyard Pruning at Low Cost with a Mobile Technology

Toscano

Alfano²,

Scarfone³

et al. 2018

Energies

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“…Picker C180 (1.26 t•h −1 ) shredding machines recorded by Velazquez-Martı et al [40], and a Nobili mod. TRP-RT 145 (0.53 t•h −1 ) (Nobili, Molinella, Emilia-Romagna, Italy) shredding machine tested by Recchia et al [42], both for FL (3.56 t fm •h −1 ) and HL (3.75 t fm •h −1 ). Furthermore, the chippers Promagri mod.…”

Section: Machine Performance and Quality Of The Work And Woody Comminmentioning

confidence: 99%

Machine Performance and Hog Fuel Quality Evaluation in Olive Tree Pruning Harvesting Conducted Using a Towed Shredder on Flat and Hilly Fields

et al. 2020

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Pruning residues from olive groves represent an important biomass source. Until now, the management of pruning residue has generally represented a disposal problem rather than an opportunity for additional revenue. The main problem is the lack of a well-organized pruning biomass supply chain. In particular, harvesting is a key stage that influences the product quality, the type of logistics chain, and the economic sustainability of the pruning supply chain. The aim of the present paper was the evaluation of the machine performance of the Facma Comby TR200 towed shredder. The harvesting tests took place in Agios Konstantinos, Fthiotida, Central Greece. Two different experimental fields were used for the evaluation of this harvesting system; these fields were characterized by different slopes to check the convenience of using such a towed shredder on both hilly slopes and flat terrains. Analysis was conducted focusing on both the work productivity and costs. Moreover, an evaluation of the obtained hog fuel quality was performed. The Facma Comby TR200 showed good work performances on both flat (2.60 tdm·h−1) and hilly (2.74 tdm·h−1) land, even if a consistent influence of the pruning biomass yield on the work performances was reported. The biomass quality could be consistently improved by modifying the pick-up systems to avoid the collection of inert materials (soil and rocks). In fact, the analysis showed a high ash content in the comminuted material (4% dry basis). Finally, the economic aspects of this study’s results were in line with those reported in the literature. The applied harvesting system showed a cost equal to 29.88 and 16.59 €·tfm−1 on flat and hilly land, respectively.

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“…Th ere are no studies about the recovery of orchard rootstocks, but several authors have addressed the recovery of pruning residues, especially from vineyards 29 and olive groves. 30 Specifi c work on pear and apple pruning residue shows yields between 2 and 10 t ha -1 , which are quite comparable with those recorded here for the rootstocks of the same species.…”

Section: Comparison With Previous Studiesmentioning

confidence: 99%

Unearthing the hidden resource: biomass from rootstock recovery

Picchi

Pari²,

Scarfone³

et al. 2016

Biofuels Bioprod Bioref

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Termination of depleted orchards generates a large amount of residue, often turned into wood fuel. This operation is particularly diffi cult with rootstocks, which are laborious to extract and offer a very low-quality fuel. The authors tested a new technology, designed for effi cient rootstock extraction. Contrary to conventional excavator-based technology, the new technology is able to cut and lift rootstocks in one single pass. A side-by-side comparative test was conducted on 16 sample plots, in a pear orchard. Clean rootstock weight ranged between 3 and 7 kg, and sample plot yield varied from 4 to 9 t ha -1 fresh rootstocks, depending on varietal. The new technology was fi ve times more productive than the conventional technology, and allowed reduction of rootstock extraction cost by a factor of 3.8. The output-input energy balance was twice as favorable for the new technology, compared with the traditional one. No signifi cant changes were found for what concerned rootstock contamination: the weight of raw rootstocks consisted of over 50% of soil, which would require a separate cleaning operation. Adoption of the new technology described in this paper may dramatically increase the viability of root biomass supply.

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New shredding machine for recycling pruning residuals

Cited by 31 publications

References 1 publication

Pelleting Vineyard Pruning at Low Cost with a Mobile Technology

Pelleting Vineyard Pruning at Low Cost with a Mobile Technology

Machine Performance and Hog Fuel Quality Evaluation in Olive Tree Pruning Harvesting Conducted Using a Towed Shredder on Flat and Hilly Fields

Unearthing the hidden resource: biomass from rootstock recovery

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