The Inter-particle porosity are the large pores between particles while the Intra-particle porosity are the smaller pores within the particle.

Porosity is the percentage of void space in a rock. Porosity is the percentage of void space in a rock. It is defined as the ratio of the volume of the voids or pore space divided by the total volume. It is written as either a decimal fraction between 0 and 1 or as a percentage.

Membrane porosity refers to the void volume fraction of the membrane and defined as the volume of the pores divided by the total volume of the membrane. However all voids are not open at both ends and thus the effective porosity of the membrane is the ratio of the connected pore volume to the total void volume.

Divide the pore volume by the total volume of your sample. Multiply that number by 100%. The result is the porosity of your sample expressed as a percent.

Intraparticle describes processes which happen in a solid particle. As particle size becomes bigger, intraparticle resistances to heat and mass transfer eventually begin to dominate. Intraparticle pores are pores within the particle. Intraparticle describes processes which happen in a solid particle.

1. n. [Geology] A type of secondary porosity created through the dissolution of a preexisting constituent of a rock, such as a shell, rock fragment or grain. The pore space preserves the shape, or mold, of the dissolved material. See: pore, porosity, secondary porosity.

One method in which porosity is determined is by laboratory measurements of Core Samples brought to the surface during drilling. Measurement of porosity in the laboratory is part of Routine Core Analysis, sometimes referred to as PKS Analysis (porosity, permeability, and saturation analysis).

The total porosity is the total void space and as such includes isolated pores and the space occupied by clay-bound water. It is the porosity measured by core analysis techniques that involve disaggregating the sample.

The pore size of a membrane gives an indication of the median or mean size of the pores on a membrane surface. The pore size of a membrane can range from 1000 to 0.0001 microns, encompassing the four main types of membrane, Microfiltration (MF), Ultrafiltration (UF), Nanofiltrations (NF) and Reverse Osmosis (RO).

You can find the porosity of soil by measuring the amount of water it takes to fill all the tiny pores in the soil.

The intraparticle diffusion model (IPD) proposed by Weber and Morris has been widely applied for the analysis of adsorption kinetics. In this work, the characteristic curves based on this model were plotted with various initial adsorption factors (Ri).

Intergranular porosity exists as space between detrital grains. Microporosity exists as small pores (less than 2 μm) commonly associated with detrital and authigenic clay minerals. Dissolution porosity is the pore space formed from the partial to complete dissolution of framework grains and/or cements.

In essence, total porosity minus shale water, where solid minerals and the volume of shale (Vsh) constitute the matrix (non-effective porosity) and the remaining volume constitutes the effective porosity.

There is no practical way in the laboratory to measure isolated pore volume routinely on rocks. However, it can be determined by disaggregating the samples.

Measure of amount of space occupied by solvent or solid support in a packed bed: porosities. There are three types of porosities used to describe a packed bed (a) Intraparticle porosity (εp): the fraction of the column volume occupied solvent inside the pores of the support or directly in contact with its surface (i.e., the stagnant mobile phase).