Investigations of Energy Separation Effect in Vortex Tube for Natural Gases

Abstract:

This paper aims to investigate fixed composition natural gases including N2, CH4 and C2H4 energy separation effect in vortex tube. Energy separation phenomena of those gases were investigated by means of three-dimensional Computational Fluid Dynamics (CFD) method. Flow fields of natural gases in fixed inlet boundary conditions were simulated. The results main factors were found that affect the energy separation with cold mass fraction being 0.7 and pressure drop ratio being 3.90. At the same time, this paper has illustrated the effects and tendencies of energy separation with gases in the tube under the same cold mass flow fraction and cold pressure ratio. The results show mixture gases total temperature difference effect is unchanged varied with the cold mass fraction; CH4% has no effect on the vortex cold end temperature separation, but varied of CH4% has an influence in total temperature and hot end separation effect; total temperature separation effect of CH4% was divided into two sections, one is0%-80%, and the other 80%-100%.

• Periodical: Applied Mechanics and Materials (Volumes 397-400)
• Pages: 205-208
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.397-400.205
• Online since: September 2013
• Authors: Wen Chuan Wang, Xiang Jun Fang, Shi Long Liu, Wen Long Sun
• Keywords: Energy Separation, Fixed Composition Mixture, Specific Heat Capacity, Vortex Tube

References

[1] G. Ranque, Method and Apparatus for Obtaining From a Fluid Under Pressure Two Currents of Fluids at Different Temperatures, U.S. Patent No. 1. 952, 281(1932).

[2] R. Hilsch, The use of expansion of gases in a centrifugal field as a cooling process, Rev Sci Instrum, (1947).

[3] T. Farouk, B. Farouk and A. Gutsol, International Journal of Heat and Mass Transfer, Volume 52, Issues 13–14, June 2009, Pages 3320-3333.

DOI: 10.1016/j.ijheatmasstransfer.2009.01.016

[4] S. Natelson and R. L. Stellate, Microchemical Journal, Volume 9, Issue 3, September 1965, Pages 245-256.

[5] Xu ZhengBin, in Chinese, OGST, Vol. 28 No. 1, 2009, pp.41-43.

[6] Lv QingNan and Zhang WangZong, in Chinese, Natural Gas And Oil, Vol 28, No. 2, 2010, pp.37-42.

[7] Sun GuoHua and Chen GuoBang, in Chinese, 1994-2003 China Academic Journal Electronic Publishing House. All rights reserved, 1988, pp.44-49.

[8] Gao XiaoGen, Ji WeiAn and Liu Qiang . et al, in Chinese, Chemical Engineering of Oil and Gas. Vol. 40, No. 1, 2011, pp.42-46.

[9] Shou WeiDong and Han HongXing, in Chinese, International Journal of Refrigeration No. 2, (1990).

[10] Wang WenChuan, Fan XiangJun, Sun WenLong, Eri QiTai and Liu ShiLong: ICEEP2013 Energy Security and Clean Use April 20-21, GuiLin, GuangXi, China, (2013).