NUMERICAL SIMULATION OF TEMPERATURE SEPARATION IN METHANE STREAM IN RANQUE-HILSCH VORTEX TUBE
DOI:
https://doi.org/10.15673/0453-8307.3/2015.35982Parole chiave:
Ranque-Hilsch vortex tube, Energy separation, Large eddy simulation, Real gas equation of state, MethaneAbstract
In present numerical research, the temperature separation in methane stream within a counter flow Ranque-Hilsch vortex tube was investigated. A complete three-dimensional geometry of the vortex tube was used to generate a high-density computational grid. A vortex tube with two tangential inlet nozzles, an axial cold stream outlet and a circumferential hot stream outlet was considered. Methane was used as a fluid along with Peng-Robinson cubic equation of state. Fluid properties like total temperature and total pressure were analyzed for a range of inlet mass flow rates and inlet total pressure values. Also the total pressure and total temperature distribution along the axial direction was investigated. The temperature separation effect is more significant for air then for methane at all investigated pressures. Created model can be used to design industrial vortex tubes for oil and gas industry where methane is a main product.
Riferimenti bibliografici
Aljuwayhel, N.F., Nellis, G.F., Klein, S.A., Parametric and internal study of the vortex tube using a CFD model, International Journal of Refrigeration 28 (2005) 442–450.
ANSYS CFX-Solver Theory Guide, SAS IP Inc., Canonsburg, 2013, pp. 109 – 114.
Aydın, O., Baki, M., An experimental study on the design parameters of a counterflow vortex tube, Energy 31 (2006) 2763–2772.
Behera, U., Paul, P.J., Dinesh, K., Jacob, S., Numerical investigations on flow behaviour and energy separation in Ranque–Hilsch vortex tube, International Journal of Heat and Mass Transfer 51 (2008) 6077–6089.
Cockerill, T., Ranque-Hilsch vortex tube, the M.S. Thesis, Engineering Department at Cambridge University, 1995.
Eiamsa-ard, S., Promvonge, P., Numerical simulation of flow field and temperature separation in a vortex tube, International Communications in Heat and Mass Transfer 35 (2008) 937–947.
Eiamsa-ard, S., Experimental investigation of energy separation in a counter-flow Ranque-Hilsch vortex tube with multiple inlet snail entries, International Communications in Heat and Mass Transfer 37 (2010) 637–643.
Farouk, T., Farouk, B., Gutsol, A., Simulation of gas species and temperature separation in the counter-flow Ranque–Hilsch vortex tube using the large eddy simulation technique, International Journal of Heat and Mass Transfer 52 (2009) 3320–3333.
Hilsch, R., The use of the expansion of gases in a centrifugal field as cooling process, Rev. Sci. Instrum. 18 (2) (1947) 108–113.
Linderstrom-Lang, C., Studies on transport of mass and energy in the vortex tube – The significance of the secondary flow and its interaction with the tangential velocity distribution. Riso report, Denmark, September.
Nicoud, F., Ducros, F., Subgrid-scale stress modelling based on the square of the velocity gradient tensor, Flow, Turbulence and Combustion, 62, pp. 183-200, 1999.
Promvonge, P., Eiamsa-ard, S., Investigation on the vortex thermal separation in a vortex tube refrigerator, ScienceAsia 31 (2005) 215-223.
Ranque, G.J., Expériences sur la détente giratoire avec productions simultanés d’un échappement d’air chaud et d’un échappement d’air froid, J. Phys. Radium 4 (7) (1933) 112–114.
Secchiaroli, A., Ricci, R., Montelpare, S., D’Alessandro, V., Numerical simulation of turbulent flow in a Ranque-Hilsch vortex tube, International Journal of Heat and Mass Transfer 52 (2009) 5496–5511.
Versteeg, H.K., Malalasekera, W., An introduction to computational fluid dynamics. The finite volume method, Longman Group Ltd., Essex, 1995, pp. 10 - 24.
Whitson, C.H., Brulé, M.R., Phase Behavior, Henry L. Doherty Memorial Fund of AIME, Society of Petroleum Engineers Inc., Richardson, Texas, 2000, pp. 47 – 52.
