Insight into derivative Weibull mixture model in describing simulated distributed activation energy model and distillers dried grains with solubles pyrolysis processes

Tian, Li; Li, Ruotong; Sun, Yongsheng; Zou, Jianfeng; Liu, Shengyong; Ma, Pengtao; Huang, Tao; Qing, Chunyao; Li, Chong; Yellezuome, Dominic; Cai, Junmeng

doi:10.1016/j.wasman.2022.09.010

Cited by 7 publications

(2 citation statements)

References 53 publications

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“…To avoid difficulties of obtaining maximum likelihood estimates of mixture models with EM, different algorithms are proposed in literature. Tian et al [31] use non-linear least square fitting. Ye et al [19] uses a genetic algorithms.…”

Section: Introductionmentioning

confidence: 99%

Gumbel mixture modelling for multiple failure data

Nagode

Oman²,

Klemenc³

et al. 2023

Reliability Engineering & System Safety

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Section: Introductionmentioning

confidence: 99%

Gumbel mixture modelling for multiple failure data

Nagode

Oman²,

Klemenc³

et al. 2023

Reliability Engineering & System Safety

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“…Moisture can have different effects on the mechanical properties of biomass since, in many cases, an increase in the water content deteriorates the mechanical properties of biomass and causes transport problems [21][22][23][24]. On the other hand, for DDGS used in thermal conversion processes, mainly in pyrolysis [25], the effect of moisture content is more complex. For lower moisture contents, material flow is impeded by agglomeration, while increasing moisture content has a lubricating effect and improves flowability.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Solid Biomass as Affected by Moisture Content

Przywara

Zapała

et al. 2023

AgriEngineering

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The objective of the study was to examine the influence of moisture content on the mechanical properties of solid biomass, which is important for storage and handling. Mechanical properties involving powder flowability were determined with a Jenike shear tester. The materials tested were powdered biomass: sunflower husks, apple pomace, dried distillers grains with solubles (DDGS), and meat and bone meal. In static operations in which powdered biomass is generally under a significant load, such as in silos, moisture deteriorates the mechanical properties of biomass and increases its cohesion. In the case of DDGS, an additional slight decrease in stress was observed for samples with the highest moisture content, which was above 20%. For meat and bone meal and sunflower husks, a lubrication phenomenon was clearly observed, in which biomass samples with increased moisture content manifested better flowability, requiring lower boundary shear stresses than less moist samples. For apple pomace samples, with normal stresses above 50 kPa, the addition of moisture above 10% did not change the values of the observed shear stresses, indicating the stability of their properties. The use of powdered biomass with higher moisture contents, at above 10%, should be avoided, as such material can lead to overhangs in tanks and silos.

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