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Solid density is just that - the weight of a fixed volume of the solid material. But if the material is not solid, that is, if it is divided into particles or grains, or "chunks" or the like, then they will not "pack down" and be as dense as a solid volume of the material. Let's try an example. If we have a shoe box full of glass marbles, it will have a given weight. And, if we have the dimensions of the box, we can take the weight and the volume of the box and make a density calculation. But the box won't actually be "solid glass" as it would if we could ignore the "packing" of the spheres. The marbles end up leaving space between and around them when we put them in the box. They're round, and they can't take up all the space in the box. They simply can't. Because they can't take up all the volume in the box, it gives rise to what we call bulk density. If we take the the density of the glass from which the marbles are made, we could find the weight of a volume of that glass that was equal to the volume of the shoe box. The weight of the glass in a shoe box that is "solid glass" will be higher than that of the weight of the marbles in a full box. And that's because it is based on our filling the box with marbles and not being able to make the spaces between the marbles disappear. Got links if you want 'em.
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Why is parameter bulk density more used than particle density?
Bulk density is more useful because it accounts for the spaces between particles in a material, reflecting how closely packed the material is in real-world applications. Particle density only considers the intrinsic density of the material itself and does not provide information on how the material behaves in a bulk form. Therefore, bulk density is more relevant for practical purposes such as determining flow properties, storage requirements, or compaction characteristics.
What is the difference between bulk density and density?
It is the difference between the density of a bulk sample, and the density of a homogenous piece of the material being measured.The difference between the density of a pile of gravel, and one stone from the pile, for example. the pile is less dense.Or styrofoam peanuts versus polystyrene plastic, the same material in a different form.Used more in engineering, for things like earthfill, coal hauling, etc.
Why is bulk density a more meaningful figure than particle density in terms of practical agriculture than particle density.?
Bulk density is more meaningful in agriculture because it incorporates the pore space between soil particles, which affects root development, water infiltration, and aeration. Particle density, on the other hand, only accounts for the density of soil particles without considering the spaces between them. Therefore, bulk density gives a more accurate representation of soil structure and its impact on plant growth.
Loose bulk density?
Bulk density is a major physical property in designing the logistic system for biomass handling. The size, shape, moisture content, individual particle density, and surface characteristics are few factors affecting the bulk density. This research investigates the effects of true particle lengths ranging from 6 to 50 mm and moisture contents ranging from 8% to 60% wet basis (wb) on the bulk density of wheat straw and switchgrass. Three types of particle densities of straw and switchgrass measured were: a hollow particle density assuming a hollow cylindrical geometry, a solid particle density assuming a solid cylindrical geometry, and a particle density measured using a gas pycnometer at a gas pressure of 40 kPa. The bulk density of both loose-fill and packed-fill biomass samples was examined. The calculated wet and dry bulk density ranged from 24 to 111 kg m-3 for straw and from 49 to 266 kg m-3 for switchgrass. The corresponding tapped bulk density ranged from 34 to 130 kg m-3 for straw and 68 to 323 kg m-3 for switchgrass. The increase in bulk density due to tapping the container was from 10% for short 6-mm particles to more than 50% for long 50-mm particles. An equation relating the bulk density of stems as a function of moisture content, dry bulk density, and particle size was developed. After the validation of this bulk density equation, the relationship would be highly useful in designing the logistics system for large-scale transport of biomass to a biorefinery. The bulk density and particle density data of uniform particles would be important, if straw and switchgrass is used for pulping and paper making.
Why bulk density a more meaningful figure in terms of practical agriculture than particle density?
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What are the differences between soil bulk density and particle density?
Bulk density is the dry mass of the solids (M sub t) / total volume (V sub t) Particle density is bulk density (P sub b) / 1 minus total porosity (1-theta).
.what is the loose bulk density of iron ore?
The solid density of iron ore generally lies between 3.35 and 5.6 tonnes per cubic metre, depending on the particular characteristics of the ore being considered. When the ore is broken up, air spaces are formed between the particles of ore, and the "apparent" density will be lower. The loose bulk density is one measure, the compacted bulk density is another, and the fluidised bulk density is yet another. The loose bulk density is measured on a sample of loose ore, that has not been allowed to self-compact over time, and has not been mechanically compacted. It will generally measure between 50% and 60% of the value of the solid density.
What are type of foods that have significant and application of solid density bulk density and porosity?
Foods with significant solid density include nuts, seeds, grains, and dried fruits. For bulk density, examples include grains, legumes, rice, and sugar. Foods with significant porosity include bread, cakes, sponges, and foam candies.
When is the particle density equal to the bulk density?
The particle density is equal to the bulk density when there is no pore space or voids between the particles. This means that the bulk density (mass of the material per unit volume including both solid material and voids) will be the same as the particle density (mass of the particles per unit volume excluding any void spaces).
What is the relationship between bulk density and porosity?
A value for porosity can alternatively be calculated from the bulk density ρbulk and particle density ρparticle: Normal particle density is assumed to be approximately 2.65 g/cm3, although a better estimation can be obtained by examining the lithology of the particles.
How do you calculate volume if given bulk density?
Bulk density = dry weight / volume, then by knowing the dry weight and bulk density we can calculate the volume.
How can you demonstrate ther is space between molecules of water?
Calculate volume of molecule, calculate mass of molecule, compare to bulk density. Lower bulk density indicates empty space.
Maximum bulk density can be occur?
bulk density depend on that material from which soil formed. so maximum bulk density depend on particle density of that mineral. Therefore,we can only tapped the soil upto perticle density. so maximum bulk density may be occur at equal to paricle density.
What is bulk density formula for magnatite?
The bulk density of magnetite can be calculated using the formula: Bulk Density = (mass of material) / (volume of material). This formula involves measuring the mass of the magnetite sample and calculating its volume to determine the bulk density.
What are the differences between a bulk carrier and a tanker ship in construction?
1.in piping arrangement.
Why is parameter bulk density more used than particle density?
Bulk density is more useful because it accounts for the spaces between particles in a material, reflecting how closely packed the material is in real-world applications. Particle density only considers the intrinsic density of the material itself and does not provide information on how the material behaves in a bulk form. Therefore, bulk density is more relevant for practical purposes such as determining flow properties, storage requirements, or compaction characteristics.
What is the difference between bulk density and density?
It is the difference between the density of a bulk sample, and the density of a homogenous piece of the material being measured.The difference between the density of a pile of gravel, and one stone from the pile, for example. the pile is less dense.Or styrofoam peanuts versus polystyrene plastic, the same material in a different form.Used more in engineering, for things like earthfill, coal hauling, etc.
