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Khodorkov, I. L.; Poshernev, N. V.; Zhidkov, M. A.

doi:10.1023/a:1026336813155

Cited by 50 publications

(9 citation statements)

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“…Conventionally, mold cooling is achieved with fluid coolants, usually water and less frequently air or other fluid media. Although, in theory, cooling can be achieved by other mechanisms, such as the Peltier effect, 73 the vortex effect, 74 and heat pumps, these methods are expensive and could be less effective than conventional water cooling. Therefore, studies with unconventional cooling methods in molding applications are uncommon.…”

Section: Constituent Elementsmentioning

confidence: 99%

Rapid thermal cycling of injection molds: An overview on technical approaches and applications

2008

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Section: Constituent Elementsmentioning

confidence: 99%

Rapid thermal cycling of injection molds: An overview on technical approaches and applications

2008

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“…Vortex tube is used as air cooler in experiment. The device is a simple cooling device composed of wind nozzle, vortex generator, vortex separate room, heat separate tube, cooled air expansion part and adjust valve [6]. High compressed gas enters vortex tube nozzle from air input tube.…”

Section: Air Cooling System and Cutting Experimentsmentioning

confidence: 99%

Effect of Air Cooling on the Process of High Speed Hard Cutting GCr15

Pen

et al. 2006

MSF

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Air cooling is a near dry machining method, which cools cutting area and evacuates chip using low temperature wind instead of cutting liquid. It can decrease tool wear, improve tool life, reduce cost and produce no chemical pollution. In this paper, air cooling system is established, in which vortex tube is used for cooling. Air cooling test was carried on, in which high hardness bear steel GCr15 is machined by PCBN tool. Experiment results indicated that cold air from vortex tube has a significant effect on cutting force, cutting temperature and chip formation process. Cutting force and cutting temperature were simulated using Marc. Change rules that analysis results indicated are in accordance with experiment results. This paper’s conclusions have a great reference value for the practical application of air cooling technology.

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“…The potential areas of application are very wide and include, for example, improving the performance of refrigeration circuits [14,15] or separating gas network zones with different hydrogen contents. Although a wide range of applications for RHVT can be presented [16][17][18], the mechanism of temperature and mass separation still lacks a fundamental scientific explanation [19,20] as well as proper design of RHVT as a functional part of the system.…”

Section: Introductionmentioning

confidence: 99%

Experimental Setup Desing for Multi-Purpose Ranque-Hilsch Vortex Tube Investigation

Kostowski,

Bargiel,

Barzantny

et al. 2023

36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 20

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The paper presents design considerations for experimental investigation of the Ranque-Hilsch vortex tube effect (VT). The research aims to find physical mechanisms governing the thermal and mass separation of non-homogenous gases entering the VT. Also, an approach to study phase-change phenomena inside the VT will be undertaken to evaluate the applicability of the VT in refrigeration systems. For this purpose, it is essential to have a mutually validated experimental setup and numerical model. The 1st generation test rig was based on a VT of 36 mm inner diameter and up to 1.62 m length. With inlet air supply at 3 bar abs, it was possible to achieve outlet temperature values from 0.1 C at the cold side to 42.3 C at the hot side, and the maximum air flow was 123 kg/h. The 2nd generation should be reduced in size for two reasons. First, lighter and heavier gases (helium, carbon dioxide) will be supplied from pressurized cylinders and mixed with air or nitrogen. The flow rate should be minimized to enable a continuous operation from the pressurized cylinders. Second, to apply higher inlet pressure, it is required to reduce the flow channels to maintain the gas flow below the technical limit of about 60...100 kg/h. The proposed test rig configuration is based on two supply options. In the first option, pure gases can be supplied from batteries (bundles) of pressurized cylinders, and then mixed to achieve the desired composition. The second option can be obtained by connecting the test installation to an air compressor, which is more suitable for test operation or for multiple-parameter measurements required to obtain boundary conditions for numerical modelling. Moreover, the test rig will be extended to include a multi-phase flow unit with a liquid dosing and separation equipment.

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Cited by 50 publications

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Rapid thermal cycling of injection molds: An overview on technical approaches and applications

Rapid thermal cycling of injection molds: An overview on technical approaches and applications

Effect of Air Cooling on the Process of High Speed Hard Cutting GCr15

Experimental Setup Desing for Multi-Purpose Ranque-Hilsch Vortex Tube Investigation

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