Stages of Scaling Development - Essay Example

The induction period can go on, for an arguably long period, possibly many weeks, only minutes or maybe even seconds.

However, for crystallization fouling, the initial phase duration lessens with an increase in the surface temperature (Epstein 1983b).Transport towards the surface: The sealant or their precursors in a moving fluid are transported together, in the direction of a surface diagonally crosswise the borderline. More frequently, this transport transpires by making use of diffusion. The transferable property, of a sealant component towards a surface, mainly relies upon the System’s physical properties and those of its constituents.

The transfer is equally dependent upon the concentration gradient flanked by the bulk fluid and the relative interface between fluid and surface. For the crystallization scaling process, it is the diffusion of ions to the outside surface and for particulate scaling, it is in actuality the diffusion of colloids or particulate matter to the surface. Attachment to the surface: It is not very frequent that all the materials transported across the surface bind. The combined forces affecting the particles, as they draw nearer to the surface, play a very significant role.

The properties of the particles such as elasticity, density, state, and surface, and the surface nature such as the roughness and type of material play important roles in the sticking process of various particles to the surface. Removal from the surface: In between the process of the steady growth of the deposit upon the surface, there is always a contest between deposition and removal. Usually, the attached solid particles are transported away from the surface.