Experimental Investigation on the Effect of Orifice Diameter and Inlet Pressure to the Ranque-Hilsch Vortex Tube Performance

Abstract:

In this experiment, the cold mass fraction, cold temperature difference and isentropic efficiency of Ranque-Hilsch Vortex Tube were investigated and measured. Three different inlet pressures (absolute) (296633 Pa, 394699.5 Pa and 492766 Pa) and 2 type of orifice diameter (4 mm and 5 mm) were used. 5 mm orifice gives higher value of cold mass fraction (μ_c = 0.7067) compare to 4 mm orifice (μ_c = 0.3264). It is also no significant effect in cold mass fraction by changing three difference inlet pressures. 4 mm orifice has higher cold temperature difference (ΔT_c = 18°C) compare to 5 mm orifice (ΔT_c = 8°C) at highest inlet pressure (492766 Pa) that were used. 4 mm orifice has higher isentropic efficiency (η_isen=0.17545) compare to 5 mm orifice (η_isen=0.0834). For both orifices, the highest isentropic efficiency was obtained when the lowest inlet pressure (296633 Pa) were applied.

• Periodical: Applied Mechanics and Materials (Volumes 465-466)
• Pages: 515-519
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.465-466.515
• Online since: December 2013
• Authors: Nurhasanah Ismail, Wisnoe Wirachman, Muhammad Fairuz Remeli
• Keywords: Inlet Pressure, Orifice, Ranque-Hilsch Vortex Tube

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