Experimental Vibrating Complex for the Research of Pressing Processes of Powder Materials

Somov, Dmytro; Zabolotnyi, Oleg; Polinkevich, Roman; Valetskyi, Bohdan; Sychuk, Viktor

doi:10.1007/978-3-030-22365-6_32

Cited by 2 publications

(1 citation statement)

References 1 publication

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“…Zabolotnyi et al [21,22] proposed a technology to obtain long-length, permeable powder materials with uniform density distribution and stable operational characteristics. Somov et al [23] developed an experimental stand to process powder materials using a vibratory actuator.…”

Section: Introductionmentioning

confidence: 99%

An Increase in the Energy Efficiency of Abrasive Jet Equipment Based on the Rational Choice of Nozzle Geometry

Baha,

Mižáková,

Pavlenko

2023

Energies

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Permanently increasing requirements for the accuracy of abrasive jet machining (AJM) predetermine a need to increase requirements for the rational choice of the related energy-efficient technological equipment. Due to the relatively cheap and high-quality cleaning of materials from contaminants using AJM, the problem of increasing the energy efficiency of the corresponding equipment based on the rational choice of nozzle geometry becomes more topical. This is also because the working nozzle is a consumable part that requires periodic replacements. Therefore, this article deals with rational designing working nozzles as a reliable way to decrease the power consumption of the compressor equipment while engaging in AJM. For this purpose, experimental and numerical studies of the operating processes in the nozzle were carried out. The main idea of increasing the nozzle’s efficiency was to reduce the contact area between the working flow and the nozzle. Due to this, the friction of the abrasive material with its walls was decreased. As a result, the AJM was accelerated, and the energy consumption of the corresponding compressor equipment was reduced. The research showed that a decrease in the nozzle’s length up to 4 mm increased the flow ratio by 84% and decreased the energy consumption of the 40 kW compressor unit by 4.5 times.

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Section: Introductionmentioning

confidence: 99%

An Increase in the Energy Efficiency of Abrasive Jet Equipment Based on the Rational Choice of Nozzle Geometry

Baha,

Mižáková,

Pavlenko

2023

Energies

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Effect of Erosion on Surface Roughness and Hydromechanical Characteristics of Abrasive-Jet Machining

Baha,

Pitel,

Pavlenko

2024

JES

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The article contains the fundamental results of the experimental and numerical investigations for pneumo-abrasive unit nozzles with different geometries. The research was purposed by the pressing need to develop an inexpensive and effective working nozzle design of the air-abrasive unit which can be applied for surface processing before some technological processes are performed, as well as for surface coating, descaling after thermal treatment, processing of hollow holes of the crankshafts, smoothing of the inner surfaces of the narrow channels between the impeller blades after electric discharge machining for ultrahigh-pressure combination compressors. Several designs were considered, ranging from the simplest to those with a complicated inner channel geometry. The impact of the nozzle material and challenging inner surface application on its characteristics has also been studied. The research was done using the application of modern CFD complexes for numerical modeling of the air-abrasive mixture discharge from the working nozzle of the pneumo-abrasive unit. In addition, physical experimentation was provided. The methods applied in the research allow for profound, systematic research of spraying units operating on the air-abrasive mixture within a wide range of geometrical and mode parameters. The novelty of the gained results lies in the development of the mathematical model of the pneumo-abrasive nozzle operating process, the working out of a cheaper nozzle design, getting information about air-abrasive mixture distribution along the nozzle length, giving practical recommendations for calculation and designing a working nozzle for the jet-abrasive unit.

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Experimental Vibrating Complex for the Research of Pressing Processes of Powder Materials

Cited by 2 publications

References 1 publication

An Increase in the Energy Efficiency of Abrasive Jet Equipment Based on the Rational Choice of Nozzle Geometry

An Increase in the Energy Efficiency of Abrasive Jet Equipment Based on the Rational Choice of Nozzle Geometry

Effect of Erosion on Surface Roughness and Hydromechanical Characteristics of Abrasive-Jet Machining

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