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Mechanical Engineering and Mechatronics Internships

Apply for one of these internships through the Internship Program (IP)(Deadline February 15/October 1) or the campus internship track of the Study and Internship Program (SIP) (Deadline February 15).

Internship at the Heinrich-Blasius-Institute

for Physical Technologies

HAW Marke RGB 72dpi

Supervisor

Jörg Schwieger

Project

High intensity discharge (HID) lamps

 

In HID lamps light is generated by a gas discharge inside a confinement called an arc tube or a burner. The gas mixture inside the arc tube is heated, and therefore partially ionized, by maintaining an electrical current between two electrodes. The ionized gas forms the light emitting arc.

To prevent demixing of gas components inside the burner, the lamp is operated at alternating current. As a result of this periodic heating, an acoustic wave with the modulation frequency of the power in the discharge is generated. It propagates towards the walls where it is damped and reflected. Incident and reflected waves interfere which leads to the development of standing acoustic waves. At certain frequencies resonances form. The standing waves interact with the discharge arc and are responsible for its distortion and instability. These take the form of flickering light, reduction in the lamp’s lifetime or even destruction of the lamp. In order to further improve HID lamps it is necessary to understand and control the acoustic resonance phenomenon.

Tasks

  • Induction to HID lamps and the challenges of further development
  • Finite Element calculations for the burner of HID lamps (Fluid Flow, Acoustic Resonances, Conjugated Heat Transfer)
  • Measurements of Acoustic Resonances and/or Fluid Flow in HID lamps
  • Evaluation and presentation of experimental and numerical results

Requirements

  • Students of (mechanical) engineering
  • Basic knowledge of Finite Element calculations and tools
  • Experience in dealing with measurement tools and equipment are beneficial

Language Skills

English

Duration

4-5 months

Possible Beginning

Feb.15 application deadline: start September

Oct.1 application deadline: start March

Credits

15

Payment

None

Internship at the Laboratory of Fluid Mechanics and CFD-Simulation

at Münster University of Applied Sciences

muenster

Supervisor

Prof. Dr.-Ing. H.-A. Jantzen

Project

Application of CFD-Simulation techniques on technical questions within actual research tasks

Actual fields of research are industrial drying systems, waste separation techniques as well as stirring systems for biogas plants. Depending on your existing skills, you have the possibility to do your first steps in CFD by solving concrete technical questions in the above topics or to improve your CFD-knowledge within our CFD-group.

Tasks

  • Geometry creation
  • Creation of computational grids
  • CFD-Calculation
  • Evaluation of the results

Requirements

You should be interested in physics, mathematics and fluid mechanics and you should be familiar with computer handling. Experiences in Excel, mathcad or comparable software are not necessarily required, but may help in your work.

Language Skills

No German skills are required. Anyway, you have the possibility to take a first look into the German language.

Other

Applicants who are among the final candidates will be contacted by the laboratory for a telephone interview

Duration

4-6 months

Possible Beginning

Feb.15 application deadline: possible beginning betw. Sep./Oct. & Feb.

Oct.1application deadline: possible beginning betw. March & Aug.

Earlier beginnings may be possible depending on professor's availability

Credits

Credits can be achieved in consultation with the home university.

Payment

None

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