Loading...

Numerical Analysis and Optimization of A Vortex Tube with Differential Evolution Algorithm

Khazaali, Sadegh Khazaali | 2022

35 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 56794 (45)
  4. University: Sharif University of Technology
  5. Department: Aerospace Engineering
  6. Advisor(s): Mazaheri, Karim
  7. Abstract:
  8. The vortex tube is a simple device that injects compressed gas (air) tangentially into the vortex chamber through one or more injection nozzles. After entering, the flow becomes rotational and an axial cold flow goes towards the cold outlet and a peripheral hot flow goes towards the hot outlet. Besides all the different applications of the vortex tube, the main application of this device is cooling. Here, the goal is to optimize the geometry and physical conditions to improve the performance, which is done by using a commercial software and numerical analysis of a vortex tube to understand the flow physics and optimization. In this research, we use experimental and numerical data for validation. After checking the independence of the solution from the mesh, the effect of the main geometric parameters such as length, diameter, width of the input and outputs on the overall performance of the system is investigated. In an optimization process, two characteristics of cold temperature separation and separation power are considered as cost functions (performance indicators). By studying the design parameters i.e. length, diameter, inlet width, hot and cold outlet width, mass flow rate ratio, inlet air angle to the vortex tube, and constraints such as temperature and inlet pressure, the optimal conditions were obtained and by analyzing the simulation results We numerically examine the main physical mechanisms and processes at the optimal point. Finally, we will use an intelligent optimization algorithm to compare the results
  9. Keywords:
  10. Thermodynamic Study ; Numerical Simulation ; Optimization ; Vortex Tubes ; Cold Temperature ; Differential Evolution Algorithm

 Digital Object List

 Bookmark

No TOC