0000000000511349

AUTHOR

Ivan Pavlenko

0000-0002-6136-1040

showing 3 related works from this author

Sedimentation Tanks for Treating Rainwater: CFD Simulations and PIV Experiments

2021

The removal of solids is the most important step when treating rainwater. The article evaluates two designs of sedimentation tanks that can be used for the continuous separation of fine particles from water: OS—standard sedimentation tanks, and OW—swirl sedimentation tanks. The tanks were studied by conducting computational fluid dynamics (CFD) modeling and particle image velocimetry (PIV) experiments. The settling process in sedimentation tank was carried out at varying operating flow rates. A tank with a modified structure was used for the tests, where water was supplied by a nozzle placed at an angle. This solution made it possible to obtain a rotational flow that transported the suspend…

TechnologyControl and OptimizationSedimentation (water treatment)NozzleFlow (psychology)Energy Engineering and Power TechnologyComputational fluid dynamicsCFD; PIV; rainwater treatment; sedimentation tank; swirl motionSettlingCalibrationElectrical and Electronic EngineeringEngineering (miscellaneous)swirl motionRenewable Energy Sustainability and the Environmentbusiness.industryTrainwater treatmentMechanicsVolumetric flow ratePIVParticle image velocimetrysedimentation tankEnvironmental scienceCFDbusinessEnergy (miscellaneous)Energies
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Study on Interfacial Surface in Modified Spray Tower

2019

This paper presents an analysis of the changes in interfacial surface and the size of droplets formed in a spray tower. The interfacial surface and the size of droplets formed are of fundamental importance to the performance of the equipment, both in terms of pressure drop and process efficiency. Liquid film and droplet sizes were measured using a microphotography technique. The confusors studied were classical, with profiled inside surface, and with double profiled inside surface. The liquids studied were water and aqueous solutions of high-molecular polyacrylamide (PAA) of power-law characteristics. The ranges of process Reynolds number studied were as follows: ReG &isin

Surface (mathematics)Materials science020209 energyPolyacrylamideBioengineering02 engineering and technologylcsh:Chemical technologyconfusorlcsh:ChemistryPhysics::Fluid Dynamicschemistry.chemical_compoundsymbols.namesake020401 chemical engineering0202 electrical engineering electronic engineering information engineeringChemical Engineering (miscellaneous)lcsh:TP1-11850204 chemical engineeringComposite materialinterfacial surfacePressure dropAqueous solutionProcess Chemistry and TechnologySauter mean diameterReynolds numberSauter mean diameterlcsh:QD1-999chemistrymodified spray towerSpray towersymbolsDimensionless quantityProcesses
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Advances in Design, Simulation and Manufacturing IV

2021

This book reports on topics at the interface between mechanical and chemical engineering, emphasizing design, simulation, and manufacturing. Specifically, it covers recent developments in the mechanics of solids and structures, numerical simulation of coupled problems, including fatigue, fluid behavior, particle movement, pressure distribution. Further, it reports on developments in chemical process technology, heat and mass transfer, energy-efficient technologies, and industrial ecology. Based on the 4th International Conference on Design, Simulation, Manufacturing: The Innovation Exchange (DSMIE-2021), held on June 8-11, 2021, in Lviv, Ukraine, this second volume of a 2-volume set provide…

Granular Materials SeparationNonlinear OscillationsHydraulic motorsRotor SystemsDSMIE 2021Frictional ContactManufacturing engineeringActive Hydrodynamic RegimesNanocrystalline Hardened LayerOrgano-mineral FertilizerHydrodynamic characteristicsOilfield Wastewater TreatmentSlider-crank mechanismsVibratory EquipmentHydraulic Mechatronic SystemsFriction treatmentModels of Hydraulic DrivesHydrovolumetric transmissionSwirling FlowMechanical Control SystemsVolume (compression)
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