ARi invented the general concepts for the use of engineered fluid transporting fractals in the early 1990's.

New fractal softener 1Scaling and distribution are general fluid handling requirements and apply to processes that require mixing or geometry transitions. Fractals are, by definition, deeply scaled and therefore address certain related problems, such as uniformity of flow and process scale-up, in a direct and logical manner.

Benefits of engineered fractals

In some cases, an engineered fractal can be an effective functional substitute for turbulence. With the use of engineered fractals, the random characteristics of the turbulent cascade can be replaced with symmetries. This can result in energy savings, process size reduction and reaction homogeneity.

In general, engineered fractals can provide precise control of fluid scaling and distribution and can therefore enhance the efficiency of fluid processes.

Applications typically include control of single or multi-phase flows.

For a given process, fluid properties which can be distributed in a random or uncontrolled manner can include, among others, flow uniformity, eddy size, bubble size, velocity, pressure, temperature and concentration. Because fluid transporting fractals can be used in general to control the distribution of fluid properties, ARi has designed fractals for use in a diverse range of application which include:

  • Chromatography
  • Mixing
  • Extraction
  • Settling
  • Ion exchange
  • Distillation
  • Scrubbing
  • Fluidized beds
  • Aeration
  • Adsorption
  • Combustion
  • Membranes
  • Reaction
  • Absorption

Other diverse applications include control or suppression of turbulence caused by fluid jets or wake sources. ARi designs and implements fractal structures which take advantage of a broad range of possible geometries. For example, devices are constructed to provide surfaces, volumes and non- integer patterns as beneficial for a given process.

How are ARi fractals designed for a given process?

The goals and required geometry for a process are combined with the use of computational fluid dynamics (CFD) for evaluation of design concepts. This is followed by pilot scale testing with required fluids in the process of interest. Methods of manufacture and materials of construction must be determined for each specific case.

How does ARi provide fractals?

  • Fractals are provided with ARi's novel process technology including SMB chromatography, ion exchange, gas/solid, gas/liquid, reactor and other processes.
  • Fractals can be designed and manufactured on a contract basis for a user's particular application.
  • Fractals can be provided through one of several licensees of ARi fractal technology.

See more industrial separation and mixing technologies and applications.
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