Modelling marine motor lubricating oil purification efficiency accounting deposit buildup in and clogging up of filter material pores
DOI:
https://doi.org/10.24866/2227-6858/2024-4/64-74Keywords:
motor oil, oil purification, filtering, filter material, clogging up of filter material poresAbstract
The efficiency of systems fluid (lubricating oil) purification from foreign solids accounting deposit buildup in and clogging up of the pores has been identified. The modelling goal has been to generate such conditions and mechanisms for insoluble contaminant (IC) screening that would make full use of the capabilities offered by the studied methods of heterogeneous systems separation accompanied by the deposit buildup in filtering material pores and surface. The action of external forces causing contaminant particle trajectories to deviate from dispersion medium flowlines and their filtering have been combined and represented by a complex index of εd screening coordinate. The novelty of the filtering process study is in establishing such distribution of contaminants by screening zones and mechanisms where the most profitable compromise between the filtering elements’ (FE) screening fineness (completeness) and retention capacity (service life) could be reached. Purification kinetics and changes in irregular porous structure filtering diaphragm pore size when filtering contaminants of wide fractional compositions have been shown. The filtering process dependencies obtained can be applied to assessing the efficiency of IC screening conducted by marine motor lubricating filtering installations employing nonwoven fabric filtering elements (diaphragms).
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