The vortex tube as a classic thermodynamic refrigeration cycle

Ahlborn, B.; Gordon, Jeffrey M.

doi:10.1063/1.1289524

Cited by 133 publications

(52 citation statements)

References 11 publications

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“…Flow exiting via cold end 3. Flow circulating near the inlet nozzle (the recirculating region); this flow is the secondary flow which was noted by Ahlborn and Gordon [15].…”

Section: Numerical Studies On Rhvtmentioning

confidence: 99%

A Review of Computational Studies of Temperature Separation Mechanism in Vortex Tube

Thakare¹,

Patil²,

Parekh³

2013

BIJIEMS

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“…Flow exiting via cold end 3. Flow circulating near the inlet nozzle (the recirculating region); this flow is the secondary flow which was noted by Ahlborn and Gordon [15].…”

Section: Numerical Studies On Rhvtmentioning

confidence: 99%

A Review of Computational Studies of Temperature Separation Mechanism in Vortex Tube

Thakare¹,

Patil²,

Parekh³

2013

BIJIEMS

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“…Ahlborn and Gordon (2000) described an embedded secondary circulation that occurs in the vortex tube. Aljuwayhel et al (2005) utilised a fluid dynamics model of the vortex tube to describe temperature separation phenomenon.…”

Section: Figure 1 Schematic Drawing Of a Counter Flow Vortex Tubementioning

confidence: 99%

Entropy and exergy analysis of a Ranque-Hilsch vortex tube with two vortex chambers

Sepehrianazar

Khalilarya

2016

IJEX

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Abstract:In this paper, entropy and exergy of a vortex tube with two vortex chambers is studied. Computational fluid dynamics (CFD) analysis of a three-dimensional, steady state, compressible and turbulent flow is carried out through a vortex tube. The standard k-turbulence model is used to analyse highly rotating complex flow field. The entropy, inlet and outlet exergies, destruction of exergy and exergy efficiency are studied. Results show that for different inlet pressures, there is an optimum distance for placing second chamber to have maximum exergy efficiency. Placing second chamber at the axial interval of Z = 1.5-5 mm leads to have minimum cold temperature, maximum hot temperature and maximum exergy efficiency, in comparison with one chamber.

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“…Several definitions regarding this theory are described in the literature. Harnett and Eckert [4] studied on the turbulent eddies and Ahlborn and Gordon [5] described an embedded secondary circulation. Stephan et al [6] proposed the formation of Gortler vortices on the inside wall of the vortex tube that drive the fluid motion.…”

Section: Figure 1 Schematic Drawing Of a Vortex Tubementioning

confidence: 99%

Numerical Simulation of Effect of Shell Heat Transfer on the Vortex Tube Performance

Pourmahmoud¹,

Abbaszadeh²,

Rashidzadeh³

2016

IJHT

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Since, cooling is the main use of vortex tube, the exited heat from the hot outlet of vortex tube can be assumed as the wasted energy when it is used as a cooling device. So, this paper tries to reduce the hot and cold temperatures at exhausts in order to increase the vortex tube cooling power. In this paper, a new method is studied which uses the shell heat transfer mechanism to affect the flow pattern inside the vortex tube. This research tries to clarify the flow pattern inside the vortex tube applying a fixed negative heat flux on the wall of the vortex tube. The results indicate that a part of main tube (around 23%) can be introduced as the effective cooling length.

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The vortex tube as a classic thermodynamic refrigeration cycle

Cited by 133 publications

References 11 publications

A Review of Computational Studies of Temperature Separation Mechanism in Vortex Tube

A Review of Computational Studies of Temperature Separation Mechanism in Vortex Tube

Entropy and exergy analysis of a Ranque-Hilsch vortex tube with two vortex chambers

Numerical Simulation of Effect of Shell Heat Transfer on the Vortex Tube Performance

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