Performance characteristics of a divergent vortex tube

Cartlidge, James; Chowdhury, Nafiz H. K.; Povey, Thomas

doi:10.1016/j.ijheatmasstransfer.2021.122497

Cited by 20 publications

(10 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on Table 1, obtained from the experimental results of air from the compressor engine, with power capacity of 7.5 Kw, maximum pressure of 9.75 Bar, and maximum inlet temperature of 46 o C, the CFD process used several input parameters [22]. The main parameter is the variation of inlet pressure between 1-5 Bars [23]. Pressure variations are carried out to determine the thermodynamic characteristics that occur in the VT [24].…”

Section: Methods 21 Cfd 3d Modelmentioning

confidence: 99%

“…Experimental data in the form of velocity, temperature, and pressure. The instrument used during the experiment was to collect pressure data using a pressure gauge, collect temperature data using a thermal image camera and thermostat (Thermocouple Type-K) [23], and collect air velocity data using a digital anemometer with input parameters in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…5(d), the purple line shows a maximum thermal power of 35.17 Watt, in the experimental results with nozzle number 6. Based on the variations of the pressure inlet, the CoP of VT on the nozzle variation shows the higher the pressure inlet, the higher the thermodynamic characteristic [30], and the result of the calculation of the thermodynamic characteristic, which has the maximum value in the experimental results with the number of nozzles 6 [23], the nozzle shape affects the pressure outlet [32], but the number of nozzles 8 has value is lower thermodynamic characteristic than the number of nozzles six and being the best choice, this does not indicate the influence of the number of nozzles [33].…”

Section: Nozzlementioning

confidence: 99%

See 2 more Smart Citations

Optimization of Vortex Tube Design and Performance for Cooling Milling Process

Sifa,

Endramawan,

Safi'i

et al. 2023

IJIE

View full text Add to dashboard Cite

The manufacturing process is required to improve cleanliness and reduce environmental pollution and the exploration of natural resources is limited. One of the manufacturing processes is machining, especially the milling process. The phenomenon during the milling process friction occurs when the workpiece is cut by the milling tool, the effect friction between tool and workpiece occurs temperature rise. To reduce the temperature rise of the milling tool during the workpiece cutting process, an effective and efficient alternative cooling is needed through the use of vortex tubes. The research method was carried out using the Computational Fluid Dynamic (CFD) approach and experiments with the use of inlet pressure = 1-5 Bar, and the parameters of variations in valve shape, number of nozzles, and pipe lengths. The overall results of the CFD and experiment of parameters in inlet pressure on the number of nozzles, valve shapes, and tube lengths, have an impact on the increasing inlet pressure, the higher the thermodynamic characteristics that occur in the vortex tube, but there is a loss of outlet pressure in each parameter. The geometry of the vortex tube selected is the number of nozzles 6, valve fillet shape, and tube length of 50 mm, vortex tube can be used for cooling the milling tool with the addition of a flexible hose at a distance of 5 cm from the tooltip.

show abstract

Section: Methods 21 Cfd 3d Modelmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Nozzlementioning

confidence: 99%

See 1 more Smart Citation

Optimization of Vortex Tube Design and Performance for Cooling Milling Process

Sifa,

Endramawan,

Safi'i

et al. 2023

IJIE

View full text Add to dashboard Cite

show abstract

“…The U-tube works as a heat exchanger between the ground and the natural gas. The energy balance is shown in Equation ( 4) utilizing a specific heat definition [48]:…”

Section: Geothermal Heat Inputmentioning

confidence: 99%

Energy, Exergy, Exergoeconomic Analysis, and Optimization in a Natural Gas Decompression Station with a Vortex Tube and Geothermal Preheating

Villalón-López,

Ambriz-Díaz,

Rubio-Maya

et al. 2024

Sustainability

View full text Add to dashboard Cite

Natural gas stations require a preheating stage to prevent the formation of hydrates inside of them provoked by a sudden decompression process of the natural gas. The preheating process has been investigated to improve efficiency and to reduce costs as well. This work studies the behavior of a natural gas decompression station with a first-stage preheating process using a vortex tube and a geothermal heat exchanger, followed by a second stage involving a water bath heater (heating vat). An energetic, exergetic, and exergoeconomic study has been carried out based on a mathematical model and the theory of exergetic cost, obtaining key thermodynamic and thermoeconomic variables, including exergy flows and equipment costs. A heat flow of 26.41 kW was obtained in the geothermal preheating stage; meanwhile, a 60.43 kW heat flow was obtained in the heating vat. The results showed a saving in station fuel using only 2.046% of the natural gas in the system at the second preheating stage. Also, the system was optimized, obtaining a 15.73% reduction in the decompressed natural gas cost. These findings show the possibility of implementing these systems in zones with many geothermal resources to reach a constant, profitable natural gas supply in areas where a pipeline network does not exist.

show abstract

“…Bazgir et al 13 explained on temperature detachment was explained using different turbulence models of a straight tube with the counter flow of RHVT; RNG k–ϵ model with respective to FMV; The results were explained 20 divergence is the optimal and critical length as 166 mm temperature elimination with increased with the number of nozzles. Cartlidge et al 14 investigated with divergent vortex tube with an inlet pressure of 3–7 bar, with a mass flow rate range of 0.05–0.14 kg s −1 . The half-angle of the hot tube was 3°; with six nozzles, the L/D 20; half angle conical splitter 45°.…”

Section: Introductionmentioning

confidence: 99%

CFD simulation on optimum material to fabricate the counter flow of Ranque–Hilsch vortex tube

Rao

Ramesh

Hampali

2022

Sci Rep

View full text Add to dashboard Cite

The basic objective of the current investigation by using CFD simulation is to select the appropriate material to fabricate Vortex tubes in meteorological conditions, which can improve efficiency and performance. The simulation results of vortex tubes were used in obtaining the performance for various materials such as copper, stainlessteel, brass, PVC, CPVC, acrylic, nylon, and bronze. The ratio of length of the hot tube and inner diameter was chosen as (L/D) 40 with the consistent inner diameter of the hot tube as 15 mm. Compressed air is passed through an inlet pipe between 2 and 12 bars in the step of 2 bars. 2D CFD was developed and analyzed with Ansys Fluent to access the performance of the vortex tube. Finally, after evaluating all simulation values for eight materials for performance depending upon their physical properties varies in the sequence from copper–bronze–brass–stainless steel–CPVC–PVC–acrylic–nylon material.

show abstract

Performance characteristics of a divergent vortex tube

Cited by 20 publications

References 13 publications

Optimization of Vortex Tube Design and Performance for Cooling Milling Process

Optimization of Vortex Tube Design and Performance for Cooling Milling Process

Energy, Exergy, Exergoeconomic Analysis, and Optimization in a Natural Gas Decompression Station with a Vortex Tube and Geothermal Preheating

CFD simulation on optimum material to fabricate the counter flow of Ranque–Hilsch vortex tube

Contact Info

Product

Resources

About