Experimental Investigation of Vortex Tube Performance: Influence of Inlet Pressure and Cold Mass Fraction on Thermal Outputs

Document Type : Original Article

Authors

1 Mechanical Department, Faculty of Engineering, Sinai University, North Sinai, Egypt.

2 Mechanical, Power Department, Faculty of Engineering, Menoufia University, Menoufia, Egypt.

Abstract

This research examines the performance of a vortex tube with two intake nozzles at 
a diameter ratio of 2:1, a cold tube diameter (dc) of 0.6 cm, a cold tube length (Lc)of 
1 cm, and a cone valve angle (θ) of 45°. The vortex tube has a 25 cm hot tube length 
(Lh) and a 1.3 cm hot tube diameter (Dh) with the length to diameter ratio (L/D) equal 
to 20. The study examined the impact of different entrance pressures (ranging from 
Pi= 1 to 3 bar) and cold mass fractions (
 .
 ) on the temperatures of the hot (Th) and 
cold (Tc) streams. Results show that although decreasing the overall cooling and 
heating performance (COP), raising the input pressure increases the temperature 
differential between the cold and hot streams. These results offer information for 
enhancing vortex tube performance and open a window over possible industrial 
applications. 

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