Loading...

Best vortex tube cascade for highest thermal separation

Majidi, D ; Sharif University of Technology | 2018

838 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.ijrefrig.2017.10.006
  3. Publisher: Elsevier Ltd , 2018
  4. Abstract:
  5. The current study examines different arrangements of vortex tubes (VTs) to get higher performances for cooling and heating. The effects of thermo-physical parameters such as inlet feed temperature and inlet/outlet vortex tube pressure on generated temperature gradient are investigated. To estimate the cold outlet temperatures, the available equations in the literature are verified against our experimental data. Moreover, we propose a new equation to estimate the hot outlet temperature based on the upper limit of hot temperature (ULHT) and the lower limit of cold temperature (LLCT), verified with experimental data as well. Further, several arrangements are simulated to obtain the minimum cold and the maximum hot temperatures for the outlet streams. Finally, the optimal arrangement of the three vortex tubes and a double-pipe helical heat exchanger that gives the highest performance is proposed. © 2017 Elsevier Ltd and IIR
  6. Keywords:
  7. Cooling/heating ; Experiment ; Vortex tube ; Experiments ; Tubes (components) ; Cold temperatures ; Feed temperature ; Helical heat exchanger ; Optimal arrangement ; Outlet temperature ; Simulation ; Thermal separation ; Thermo-physical parameters ; Vortex flow
  8. Source: International Journal of Refrigeration ; Volume 85 , 2018 , Pages 282-291 ; 01407007 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S0140700717303900