Absolute porosity, definition

Absolute porosity, definition, 220 Absolute viscosity, definition, 386 Acid number (total acid number, TAN), definition, 403 Adhesion, definition, 26-27 Adsorbed polymer layers, interaction with droplets, 62 Adsorption definition, 386... 

When a liquid or a gas occupies a volume, it may be assumed to fill the volume completely. On the other hand, when solid particles occupy a volume, there are always spaces (voids) among the particles. The porosity or void fraction of a bed of particles is the ratio (void volume)/(totai bed volume). The bulk density of the solids is the ratio (mass of solids)/(iotaI bed volume), and the absolute density of the solids has the usual definition, (mass of solids)/(volume of solids). 

For smooth roll compactors a formula can be derived that correlates roller diameter and gap. With the definitions of Figure 227 and the restrictions imposed by the modified strip model [i.e. beginning at the line (cxe) horizontal increments move with the peripheral speed of the rolls (no slip) and remain absolutely horizontal (no distortion)], the following equation for the porosity min at the narrowest point (a = 0) is obtained ... 

---

See also in sourсe #XX -- [ ]

---