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Experimental investigation on the acoustic characteristics and cooling performance of the vortex tube.

Author(s) : LIANG F., XU C., TANG G., WANG J., WANG Z., LI N.

Type of article: IJR article

Summary

The purpose of this paper is to study the acoustic signal characteristics of a Ranque-Hilsch vortex tube and discuss the energy separation phenomenon behind it. Experiments were conducted with air as the working fluid. The acoustic signal and corresponding thermal fluid parameters are measured. The influencing factors such as inlet pressure, nozzle number, and cold mass fraction were investigated. The results show that the acoustic energy of the vortex tube is chiefly within the range from 4000 Hz to 5000 Hz. Two frequency peaks (about 1500 Hz and 4200 Hz) are observed in the frequency domain. As the inlet pressure increases, the sound pressure level(SPL) increases, and as the cold mass fraction increases, the SPL decreases. There is a positive correlation between the sound intensity and the energy separation performance. Interestingly, the vortex tube with 5 nozzles produces maximum SPL and COP (Coefficient of performance) compared to the 4-nozzle and 6-nozzle vortex tubes.
 

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Pages: 535-546

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Details

  • Original title: Experimental investigation on the acoustic characteristics and cooling performance of the vortex tube.
  • Record ID : 30029158
  • Languages: English
  • Subject: Technology
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 131
  • Publication date: 2021/11
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2021.08.001
  • Document available for consultation in the library of the IIR headquarters only.

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