Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7175441 | International Journal of Refrigeration | 2018 | 26 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Davood Majidi, Hashem Alighardashi, Fatola Farhadi,