Storage and Flow of Solids
01 Jan 1964-
About: The article was published on 1964-01-01 and is currently open access. It has received 585 citations till now. The article focuses on the topics: Flow (mathematics).
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TL;DR: In this article, the authors describe a method to measure the relative bridging properties of solid biofuels over openings, which consists of a silo, with a bottom made of rubber mats, which can be rolled on a drum, so that a gap is created.
Abstract: The paper describes the development of a method to measure the relative bridging properties of solid biofuels over openings. The system consists of a silo, with a bottom made of rubber mats, which can be rolled on a drum, so that a gap is created. Over the gap, a “bridge” of fuel particles is formed. When the gap is wide enough, the bridge collapses and the distance between the drums is measured. This number is a measure of the relative bridging property of that specific fuel. General results are given for a variety of solid biofuels. The bridging property of solid biofuels is mainly controlled by the shape and the size of the particles. If the fuel contains many hooked or long and thin particles, the bridging tendency is high. The influence of the moisture content is not as pronounced, but exists. In further articles, specific results will be discussed.
34 citations
TL;DR: In this paper, the flow function of a powder has been determined directly by compacting a cylindrical specimen and determining the unconfined yield strength, and an experimental method has been developed for eliminating the effect of wall friction during compaction and it has been shown theoretically that this is a valid method.
34 citations
01 Jan 2010
TL;DR: The authors discusses scientific and technical principles associated with pharmaceutical product development useful to practitioners in validation and compliance, and the primary objective of this feature is to be a useful resource for daily work applications.
Abstract: gxpandjvt.com/bios “Product and Process Design” discusses scientific and technical principles associated with pharmaceutical product development useful to practitioners in validation and compliance. We intend this column to be a useful resource for daily work applications. The primary objective for this feature: Useful information. Reader comments, questions, and suggestions are needed to help us fulfill our objective for this column. Please send your comments and suggestions to column coordinator Yihong Qiu at qiu.yihong@abbott. com or to journal coordinating editor Susan Haigney at shaigney@advanstar.com.
34 citations
TL;DR: This article showed that the unconfined yield strength depends on the consolidation method used and the relation between the strain path directions during consolidation and at failure, however, the stress state during steady state flow does not depend on consolidation procedure.
33 citations
TL;DR: It is found that the correlation between FFc and cohesion can sustain as long as the angle of internal friction at incipient flow is not significantly larger than the angles ofinternal friction at steady-state flow, a condition covering almost all pharmaceutical powders.
33 citations