Variability of bulk density of distillers dried grains with solubles (DDGS) during gravity-driven discharge.

Abstract:

:Loading railcars with consistent tonnage has immense cost implications for the shipping of distillers' dried grains with soluble (DDGS) product. Therefore, this study was designed to investigate the bulk density variability of DDGS during filling of railcar hoppers. An apparatus was developed similar to a spinning riffler sampler in order to simulate the filling of railcars at an ethanol plant. There was significant difference (P<0.05) between the initial and final measures of bulk density and particle size as the hoppers were emptied in both mass and funnel flow patterns. Particle segregation that takes place during filling of hoppers contributed to the bulk density variation and was explained by particle size variation. This phenomenon is most likely the same throughout the industry and an appropriate sampling procedure should be adopted for measuring the bulk density of DDGS stored silos or transported in railcar hoppers.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Clementson CL,Ileleji KE

doi

10.1016/j.biortech.2010.02.066

subject

Has Abstract

pub_date

2010-07-01 00:00:00

pages

5459-68

issue

14

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(10)00377-9

journal_volume

101

pub_type

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