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Offer 191 out of 475 from 20/01/23, 10:27

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Tech­ni­sche Uni­ver­sität Ber­lin - Faculty V - Institute of Fluid Dynamics and Technical Acoustics / Experimental Fluid Dynamics

Research assistant - salary grade E 13 TV-L Berliner Hochschulen

part-time employment may be possible
under the reserve that funds are granted

Working field:

In the context of the energy transition, hydrogen is seen as a promising energy carrier of the future to compensate for the weather-dependent fluctuations in electricity production by renewable energies. The energy stored in hydrogen can be burned on demand, e.g. in gas turbines, to produce electricity precisely when this is not sufficiently possible by means of wind and solar energy due to the weather. For this purpose, novel burner concepts in gas turbines are needed that enable safe and low-pollution hydrogen combustion. The project "Dynamics of jet flames under elevated pressure" (in short: DIVA) investigates the suitability of jet burners for stable combustion of hydrogen-containing fuel mixtures up to pure hydrogen. In particular, the stability of premixed jet flames as a function of the fuel composition with respect to flashback and thermoacoustics is investigated experimentally. Based on atmospheric tests, further investigations under increased static combustion chamber pressure will be carried out in order to simulate near-machine operating conditions. The following tasks are to be worked on in the course of the project:

  • investigation of jet flames using optical and sensor-based measurement techniques to characterize flame and flow dynamics as well as thermoacoustic properties
  • development of a robust detector system for flashback
  • development of an injection device to influence the wall boundary layer in order to avoid flashback
  • adaptation of the existing jet burner for tests under atmospheric and elevated pressure conditions
  • investigation of flame stability and determination of transfer functions by means of acoustic excitation under atmospheric and elevated pressure conditions
  • characterization of the burner's robustness to flashback under different operating conditions

Requirements:

  • successfully completed university degree (Master, Diplom or equivalent) in engineering science, mechanical engineering, aerospace engineering, or similar
  • relevant knowledge of fluid mechanics, thermodynamics, and measurement technique is required
  • craftsmanship and a high level of teamwork skills are mandatory
  • experience in design and the use of CAD software (ideally Solid Works) is mandatory
  • good programming skills in Matlab and/or Python for statistical analysis of measurement data are required
  • a good command of English language (at least B2 level), both written and spoken, is mandatory
  • business fluent and very good knowledge of German language (at least C1 level)
  • independent and responsible action in a lively exchange with experienced colleagues is a prerequisite
  • ideally, in-depth knowledge of combustion is already available
  • desirable are independent experiences with experimental work by means of:
  • optical and laser-based measurement techniques (recordings with high-speed cameras, PIV, LDA, OH-PLIF, spectroscopy, etc.)
  • sensor based flow measurement techniques (hot wire anemometry, pressure measurements, microphone measurements etc.)
  • knowledge in the use of LabView is also an advantage

How to apply:

Meaningful applications including CV and diploma/degree certificate (current grade summary, if applicable) can be submitted bundled by email to to Prof. Dr. Paschereit via fd-TB-office@win.tu-berlin.de**.

By submitting your application via email you consent to having your data electronically processed and saved. Please note that we do not provide a guaranty for the protection of your personal data when submitted as unprotected file. Please find our data protection notice acc. DSGVO (General Data Protection Regulation) at the TU staff department homepage: https://www.abt2-t.tu-berlin.de/menue/themen_a_z/datenschutzerklaerung/ or quick access 214041.

To ensure equal opportunities between women and men, applications by women with the required qualifications are explicitly desired. Qualified individuals with disabilities will be favored. The TU Berlin values the diversity of its members and is committed to the goals of equal opportunities.

Technische Universität Berlin - Der Präsident - Fakultät V, Institut für Strömungsmechanik und Technische Akustik, FG Experimentelle Strömungsmechanik, Prof. Dr. Paschereit, Sekr. HF 1, Müller-Breslau-Straße 8, 10623 Berlin