Aerodynamic and Physical Characterization of Refuse Derived Fuel

Nakhaei, Mohammadhadi; Pedersen, Morten Nedergaard; Wu, Hao; Jensen, Lars Skaarup; Glarborg, Peter; Jensen, Peter Arendt; Grévain, Damien; Dam‐Johansen, Kim

doi:10.1021/acs.energyfuels.8b01359

Cited by 10 publications

(6 citation statements)

References 42 publications

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“…Moreover, the potential of waste biomass such as vine (Vitis vinifera L.) pruning [4], corn cobs (Zea mays) [5], sugarcane bagasse (Saccharum officinarum) [6] sunflower (Helianthus annus L.) stalks [7] or even food waste [8] to produce particleboards has also been studied. These works have provided alternative applications for otherwise undervalued products, which currently are mostly used for energetic valorization [9,10], as due to the specificity of its formation, wood belongs to the group of natural and renewable energy sources [11]. Other potential sources of lignocellulosic raw materials are undoubtedly orchards and nurseries of fruit trees.…”

Section: Introductionmentioning

confidence: 99%

Functional Assessment of Particleboards Made of Apple and Plum Orchard Pruning

Kowaluk

Szymanowski

Kozłowski

et al. 2019

Waste Biomass Valor

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Three-layered composite materials consisting in wood-chips bonded by a resin (particleboard) were successfully produced from two by-products: plum and apple tree branches, waste biomass produced after orchard pruning; a third particleboard was made from an industrial softwood blend as a reference. After collecting the branches, the raw materials were characterized in matters of density, bark content and bulk density of particles. Various physical and mechanical properties were assessed in accordance with European Standards for wood-based panels, namely thickness swelling, water absorption, modulus of rupture, modulus of elasticity, internal bonding strength, screw withdrawal resistance, as well as density profile and machining properties during milling and drilling. Modulus of rupture was 14.4 ± 1.2 N mm −2 for plum-based panels and 12.8 ± 2.3 N mm −2 for apple-based panels, while modulus of elasticity was 2576 ± 140 N mm −2 for plum-based panels and 2432 ± 345 N mm −2 , which fulfills the mechanical requirements for panels of furniture production and interior equipment purposes which of this kind of materials is modulus of rupture of 11 N mm −2 and modulus of elasticity of 1600 N mm −2. The results showed in general, a good performance of the composite materials elaborated from waste biomass, thus offering a potential revalorization of a rather undervalued by-product.

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Section: Introductionmentioning

confidence: 99%

Functional Assessment of Particleboards Made of Apple and Plum Orchard Pruning

Kowaluk

Szymanowski

Kozłowski

et al. 2019

Waste Biomass Valor

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“…The particles of each subgroup have a specific terminal velocity in the ranges of <2, 2-3, 3-5, 5-7, and >7 m/s. For each subgroup, the distribution of particle size and shape is selected based on the previously measured values reported in [55], and summarized in the supplementary material (section 2).…”

Section: Particle Drag Modelsmentioning

confidence: 99%

“…For petcoke fuel particles, the homogeneous Wen-Yu drag model [64,65] is used. For the biomass fraction of SRF particles, according to the physical and aerodynamic study of individual SRF particles in [55], the non-spherical Ganser drag model [66] with a constant multiplier is employed. For the plastic particles in SRF, it is assumed that the shape of particles changes to a near-spherical shape after the melting process.…”

Section: Particle Drag Modelsmentioning

confidence: 99%

“…In the CPFD model, solid particles are tracked in a Lagrangian frame using the MP-PIC approach. The sub-models used for conversion of different SRF particle types are previously developed and validated [55,56]. Finally, predictions from the CFD simulations and the measurements are compared throughout the calciner, and suggestions for improving the accuracy of the simulation are provided.…”

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confidence: 99%

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CPFD simulation of petcoke and SRF co–firing in a full–scale cement calciner

Nakhaei

Grévain

et al. 2019

Fuel Processing Technology

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“…In this case, objects are described based on their weight instead of their size. Some authors have used a Rosin–Rammler distribution to fit this type of distribution (Nakhaei et al, 2018; Von Blottnitz et al, 2002). However, this approach is less useful for the mechanistic modeling of equipment processes like a trommel or a shredder, as mass distributions do not directly describe a physical property targeted by these processes.…”

Section: Introductionmentioning

confidence: 99%

Particle size analysis of municipal solid waste for treatment process modeling

2020

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Several unit operations used in municipal solid waste (MSW) processing facilities are based on physical properties of the waste materials, such as particle size, density and shape. Reliable expressions describing particle size distribution (PSD) of the different waste components present in MSW are not readily available in the context of process modeling. In this study, the characterization data for household wastes and construction and demolition (C&D) wastes were analysed with the purpose of selecting the most representative PSD expression for these waste streams. The Rosin–Rammler distribution was identified over the log-normal and the gamma distributions as the best-fitting PSD for the waste samples. This was demonstrated for both raw and processed waste samples. Parameters were derived and validated for every category of MSW materials considered in the characterization. A model for mixed household waste PSD was developed based on the summation of Rosin–Rammler expressions corresponding to each category of waste materials, as the composition was determined to be the main factor influencing particle size. A simplified model was also derived for mixed waste as a bimodal distribution since two main modes were observed in household waste – one for the “organic” fraction and one for the “inorganic” fraction.

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Aerodynamic and Physical Characterization of Refuse Derived Fuel

Cited by 10 publications

References 42 publications

Functional Assessment of Particleboards Made of Apple and Plum Orchard Pruning

Functional Assessment of Particleboards Made of Apple and Plum Orchard Pruning

CPFD simulation of petcoke and SRF co–firing in a full–scale cement calciner

Particle size analysis of municipal solid waste for treatment process modeling

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