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Postdoc in Modelling of Advanced Turbomachinery for Liquid Air Energy
DTU Mechanical Eng
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Friday 21 Jan 22
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Apply no later than 20 February 2022
Apply for the job at DTU Mechanical Eng by completing the following form.
Department of Mechanical Engineering, Technical University of Denmark (DTU),
has together with a number of academic and industrial partners just started an
exciting international project on a novel large-scale energy storage concept –
liquid air energy storage. Currently, we have an opening for a postdoc
position at DTU Mechanical Engineering concerning the modelling of
turbomachinery. Specifically, the postdoc will address the modelling of
advanced two-phase turbomachinery for the air liquefaction process. If you are
establishing your career as scientist and you are looking for the best
possible foundation for fulfilling your dreams and ambitions, this is your
chance. At DTU Mechanical Engineering you will get the chance break new ground
at the absolute forefront of what is possible.
The increased use of fluctuating renewable energy sources worldwide, including
primarily wind and solar energy, causes imbalance between supply and demand of
energy. One of the more promising options to mitigate the variability of
renewable energy sources is to use large-scale energy storage systems. The
liquid air energy storage system is a novel technology with a high energy
density that does not require large storage volumes. At present, the liquid
air energy storage technology is at an industrial demonstration level, and
further research is required to increase its round-trip efficiency, the ratio
of the electricity generated during the discharging process to the electricity
consumed during the charging process, making it economically attractive. One
of the possibilities to increase the round trip efficiency of the storage
system is to use two-phase expansion for the liquefaction process.
Responsibilities and qualifications
The research work includes the numerical analysis of the turbomachinery for
the liquid air energy storage system using advanced numerical tools. You will
primarily focus on advanced two-phase turbomachinery for the air liquefaction
process, but you will also address the turbomachinery for the charging and
discharging processes. In addition, you will work together with colleagues on
the modeling of the whole liquid air energy storage system. There will be
fruitful synergies among this project and other on-going projects at the
department addressing the liquid air energy storage technology and two-phase
turbomachinery, respectively. If you have a passion for research and a
mechanical engineering background, including experience of turbomachinery
modelling, you may be the person we are looking for. The results of your
research will contribute to expand the use of renewable energy sources,
reducing carbon dioxide emissions and mitigating climate change.
Examples of your responsibilities are the following:
Develop advanced models for analysis of turbomachinery with two-phase
flow, considering non-equilibrium effects (for example, differences in
temperature and velocity between the two phases).
Use the developed models to identify the loss mechanisms due to the
presence of the bubbles in the flow and the optimal blading design for the
Develop expander and compressor designs using mean-line and 3-dimensional
aerodynamic design approaches.
Evaluate the effects of the turbomachinery design on the performance of
the whole liquid air energy storage system.
Validate your numerical models using results of experimental work obtained
in other projects at DTU and results published in the open literature.
Take part in the teaching activities at the department.
Contribute to preparing research project proposals.
As a formal qualification, you must hold a PhD degree (or equivalent).
DTU is a leading technical university globally recognized for the excellence
of its research, education, innovation and scientific advice. We offer a
rewarding and challenging job in an international environment. We strive for
academic excellence in an environment characterized by collegial respect and
academic freedom tempered by responsibility.
Salary and terms of employment
The appointment will be based on the collective agreement with the Danish
Confederation of Professional Associations. The allowance will be agreed upon
with the relevant union. The period of employment is 2 years.
You can read more about career paths at DTU here.
Further information may be obtained from Associate Professor Fredrik Haglind,
tel.: +45 4525 4113.
You can read more about Department of Mechanical Engineering at
If you are applying from abroad, you may find useful information on working in
Denmark and at DTU at DTU – Moving to Denmark.
Your complete online application must be submitted no later than 20
February 2022 (Danish time). Applications must be submitted as one PDF
file containing all materials to be given consideration. To apply, please
open the link "Apply online", fill out the online application form, and attach
all your materials in English in one PDF file. The file must include:
Application (cover letter)
Academic Diplomas (MSc/PhD)
List of publications
Applications received after the deadline will not be considered.
All interested candidates irrespective of age, gender, disability, race,
religion or ethnic background are encouraged to apply.
DTU Mechanical Engineering covers the fundamental engineering disciplines
within Solid mechanics, Fluid mechanics, Coastal and Maritime Engineering,
Energy systems and energy conversion, Materials and Surface Engineering,
Manufacturing Engineering, Engineering design and Product development. The
department has a scientific staff of about 135 persons, 100 PhD students and a
technical/administrative support staff of about 80 persons.
Technology for people
DTU develops technology for people. With our international elite research and
study programmes, we are helping to create a better world and to solve the
global challenges formulated in the UN's 17 Sustainable Development Goals.
Hans Christian Ørsted founded DTU in 1829 with a clear vision to develop and
create value using science and engineering to benefit society. That vision
lives on today. DTU has 12,900 students and 6,000 employees. We work in an
international atmosphere and have an inclusive, evolving, and informal working
environment. DTU has campuses in all parts of Denmark and in Greenland, and we
collaborate with the best universities around the world.