Abstract
This paper presents a dataset of spatial data, angles of repose and bulk densities collected from 108 bulk material heaps. The investigated materials were lignite, wood chips, limestone, blast furnace coke, fresh and dried corn grains, milk powder as well as bituminous coal. Sample sizes range from 16 liters to approximately 220 liters, and each measurement was repeated four times to allow for variance assessment. This dataset is particularly useful for researchers and engineers, who want to investigate the shape of bulk solid heaps, or who want to test or benchmark measurement methods concerning heaps of granular matter, such as the angle of repose.
Highlights
Background & SummaryHeaps are of great interest for bulk solids characterization
The angle of repose, a quantity which is widely reported in bulk material-related research, can be measured from heaps formed under gravity
The angle of repose is defined as the angle between the horizontal and lateral surface lines of a conical heap
Summary
Heaps are of great interest for bulk solids characterization. For instance, the angle of repose, a quantity which is widely reported in bulk material-related research, can be measured from heaps formed under gravity. For example, a global convex or concave shape deviation is present in a heap, a direct angle of repose measurement becomes ambiguous. In order to address the lack of a common database for bulk solid heaps, this data descriptor contains three-dimensional surface scans of 108 experimentally generated heaps of eight distinct bulk solids and three different sample volumes. The investigated bulk solids cover a wide range of particle sizes and industrial sectors and are backed by conventional, indirect angle of repose measurement data, determined. The dataset is intended to provide researchers and engineers with bulk solid heap surface data for testing newly developed analysis methods and to provide a consistent basis for comparison and benchmarking of different analysis methods, for example for the angle of repose or related properties. These can be useful to test spatial image reconstruction algorithms
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