There is limited documentation of the effect created by an outlet element on the flow in the cyclone. Created 3D-model of the cyclone. In addition to this, two vortex finder diameters were simulated and compared. The framework relies on coupled CFD—DEM simulations to provide particle-level mechanistic information such as collision frequencies, particle flux and residence time of the particles in the spray zone. The main focus in the thesis was to study this effect.
We then continued to with injecting particles to the cyclone. Cyclone separators are widely used in several industries for separation of particles or droplets from gases or liquids. Note Includes bibliographical references. In addition to this, two vortex finder diameters were simulated and compared. The pressure drop relates to the power needed to operate the cyclone. Whole Engine department We are 14 persons who are responsible for rotor and blade dynamics as well as secondary air systems in our gas turbines Power output: This was found after simulating the airflow and comparing the results, which had to be relatively similar.
For questions about the recruitment process contact Malin Tallberg, tel. In addition to this, two vortex finder diameters were simulated and compared. Although cyclones are geometrically simple, the physics describing the flow is rather complicated.
The main focus in the thesis was to study this effect. Turn challenges into opportunities Our energy system is undergoing rapid changes and the world’s energy use is yhesis increasing. About the project This project was a collobration between the task master Alfsen and Gunderson AS and our group, consisting of four mechanical engineer students at Oslo and Akershus University College of Applied Science. We also give support to other departments such as manufacturing, sales, commissioning and service.
Rutgers University Community Repository. This documentation would help Alfsen and Gunderson to expand their portfolio. Cite Export Share Print Email. It is assumed to increase the collection efficiency.
Numerical investigation of cyclone separators with- and without outlet element
Graph of axial velocity for 6A. The bachelor thesis was conducted and written by four students at HiOA over the course of the spring semester:. The outlet element is an optional part that can be connected to a cyclone. Graph of tangential velocity for 5A. Below we have visualized a short cmc+ of the process in this thesis.
Master thesis: Forced response validation of STAR CCM+ with full turbine simulation
This thesis started as a literature study were we collected information about cyclone separators and how they work. The CFD calculations should include time marching full annulus simulation and single passage HB simulation. All Text Images Audio Video. The pressure drop relates to the power ccm+ to operate the cyclone. There are several ways to design the outlet element.
Graph of static pressure for 4A. These were generated for all three cyclones. Generated mesh for the cyclone divided the cyclone in small cells.
Passive scalar model is also used for Lagrangian phase to track the residence time of the particles within the spray zone. This mechanistic data can be used in Population balance models PBM to model the rate processes such as agglomeration, breakage and consolidation.
GROUP 11 – BACHELOR THESIS
Process summary The work started with modeling the geometry of the cyclones and create a fine independent mesh. Over decades, many researchers have studied theiss devices and have developed number of theories and empirical models for design purpose.
Created 3D-model of the cyclone. This project was a collobration between the task master Alfsen and Gunderson AS and our group, consisting of four mechanical engineer students cccm+ Oslo and Akershus University College of Applied Science.
Our main working tasks are development of existing and future engines. Statistical Profile Version 8. Parallelly with the literature study we had to master a computational fluid dynamics CFD software.