PhD Candidate in Ultrasonics Engineering

Trondheim, Norway
28 Feb 2020
End of advertisement period
26 Mar 2020
Contract Type
Full Time

About the position

We have a vacancy for a Chemical Engineer at the famous Institutt for energi- og prosessteknikk at NTNU in Trondheim, Norway.

The overall objective of this project is to: (i) design a technical solution and system for using ultrasound to reduce air supersaturation inside the hydropower facility, (ii) test the developed system in small and large supersaturation scale laboratory settings, and (iii) with the aid of mathematical modelers, develop a numerical model that predicts the reductions in different types of hydropower facilities and under different saturation levels.

When power ultrasound (PUS) is used in liquid systems, it causes (i) an area of extreme ‘mixing’ close to the ultrasonic transducer (source), (ii) cleaning surface, and (ii) degassing surface. To accurately predict the ultrasound induced formation of air bubbles in supersaturated water is a difficult task as one must: (i) predict the accurate flow field to determine relevant time-scales and exposure times, etc. (ii) have a model that maps out the ultrasonic intensity together with local flow characteristics to the rate of bubble formation.

The PhD student will report directly to Professor Bruno G. Pollet AFIChemE FRSC, Head of the “Hydrogen Energy and Sonochemistry Research group” at the Department of Energy and Process Engineering (EPT), NTNU.

He/she will have internal (2) and external (1) co-supervisors:

  • Professor Ole Gunnar Dahlhaug, EPT, NTNU who is at the forefront of hydro turbine research.
  • Professor Odne S. Burheim, EPT, NTNU who is at the forefront of energy storage research.
  • Professor Jean-Yves Hihn, Université de Franche-Comté (France) who is at the forefront of ultrasonic engineering research.

Duties of the position

During the course of your PhD research project, you will be expected to:

  • Attend courses (inc. Health and Safety)
  • Perform literature review.
  • Perform experimental work.
  • Analyse and review generated data.
  • Present the data in a Scientific and systematic manner.
  • Write research papers and other scientific outputs with the supervisors and other researchers.
  • Occasionally, prepare teaching materials, teach (2nd and 3rd year Bachelor’s) and mark teaching assessments.

The PhD research student is expected to adopt a professional approach to the research degree programme, including:

  • good timekeeping.
  • observing deadlines.
  • reading and responding to communications from the supervisory team and other members of the University.
  • taking responsibility for their own skills and career development.

Required selection criteria

The PhD-position's main objective is to qualify for work in research positions. The qualification requirement is that you have completed a master’s degree or second degree (equivalent to 120 credits) with a strong academic background in Chemical Engineering or equivalent education with a grade of B or better in terms of NTNU’s grading scale. If you do not have letter grades from previous studies, you must have an equally good academic foundation. If you are unable to meet these criteria you may be considered only if you can document that you are particularly suitable for education leading to a PhD degree.

The successful candidate must also fulfil the requirement for admission to a Doctoral Program.

The appointment is to be made in accordance with the regulations in force concerning State Employees and Civil Servants and national guidelines for appointment as PhD, post doctor and research assistant.

Other qualifications

  • Knowledge of Chemical Engineering is strongly recommended.
  • Knowledge of ultrasonics and power ultrasound would be advantageous.
  • Knowledge of modeling tools (e.g. 2D CFD model) would be advantageous.
  • Excellent written and oral English.
  • Norwegian language skills desirable but not essential.
  • Project management skills desirable but not essential.
  • Health and Safety Certificate desirable but not essential

Personal characteristics

  • The successful candidate should be enthusiastic, highly motivated, disciplined and willing to work both independently and with other researchers.
  • The applicant should be a problem solver and results driven.
  • The applicant should have good project management skills as well as an excellent command of English, both written and verbal as she/he will be expected to write research articles and deliver her/his findings at inter(national) conferences.
  • Willing to travel internationally.

In the evaluation of which candidate is best qualified, emphasis will be placed on education, experience and personal suitability, in terms of the qualification requirements specified in the advertisement

In the evaluation of which candidate is best qualified, emphasis will be placed on education, experience and personal suitability.

We offer

Salary and conditions

PhD candidates are remunerated in code 1017, and are normally remunerated at gross from NOK 479 600 per annum before tax, depending on qualifications and seniority. From the salary, 2% is deducted as a contribution to the Norwegian Public Service Pension Fund.

The period of employment is 3 years without required duties.

Appointment to a PhD position requires that you are admitted to the PhD programme in Engineering, within three months of employment, and that you participate in an organized PhD programme during the employment period.

The engagement is to be made in accordance with the regulations in force concerning State Employees and Civil Servants, and the acts relating to Control of the Export of Strategic Goods, Services and Technology. Candidates who by assessment of the application and attachment are seen to conflict with the criteria in the latter law will be prohibited from recruitment to NTNU. After the appointment you must assume that there may be changes in the area of work.

The position is subject to external funding.

It is a prerequisite you can be present at and accessible to the institution on a daily basis.

About the application

The application and supporting documentation to be used as the basis for the assessment must be in English.

Publications and other scientific work must follow the application. Please note that applications are only evaluated based on the information available on the application deadline. You should ensure that your application shows clearly how your skills and experience meet the criteria which are set out above. 

Joint works will be considered. If it is difficult to identify your contribution to joint works, you must attach a brief description of your participation.

General information

A good work environment is characterized by diversity. We encourage qualified candidates to apply, regardless of their gender, functional capacity or cultural background. 

The city of Trondheim is a modern European city with a rich cultural scene. Trondheim is the innovation capital of Norway with a population of 200,000. The Norwegian welfare state, including healthcare, schools, kindergartens and overall equality, is probably the best of its kind in the world. Professional subsidized day-care for children is easily available. Furthermore, Trondheim offers great opportunities for education (including international schools) and possibilities to enjoy nature, culture and family life and has low crime rates and clean air quality.

NTNU is committed to following evaluation criteria for research quality according to The San Francisco Declaration on Research Assessment - DORA.

As an employee at NTNU, you must at all times adhere to the changes that the development in the subject entails and the organizational changes that are adopted.

Information Act (Offentleglova), your name, age, position and municipality may be made public even if you have requested not to have your name entered on the list of applicants.

If you have any questions about the position, please contact Professor Bruno G. Pollet AFIChemE FRSC, Department of Energy and Process Engineering, NTNU, Trondheim. Phone number: +4792489316 / Email: /


For further information on ultrasound, please visit the following websites:

If you have any questions about the recruitment process, please contact Ingrid Wiggen, e-mail:

Please submit your application electronically via with your CV, diplomas and certificates. Applications submitted elsewhere will not be considered. Diploma Supplement is required to attach for European Master Diplomas outside Norway. Chinese applicants are required to provide confirmation of Master Diploma from China Credentials Verification (CHSI).

If you are invited for interview you must include certified copies of transcripts and reference letters.

Please refer to the application number IV-84/20 when applying.

Application deadline: 26.03.2020

NTNU - knowledge for a better world

The Norwegian University of Science and Technology (NTNU) creates knowledge for a better world and solutions that can change everyday life.

Department of Energy and Process Engineering

We conduct research and teaching covering the entire energy chain, from resources to the end-user. We look at how energy is produced and used by humans and machines in a sustainable way with regard to health, climate change and the resource base. The Department of Energy and Process Engineering is one of eight departments in the Faculty of Engineering.

Deadline 26th March 2020
Employer NTNU - Norwegian University of Science and Technology
Municipality Trondheim
Scope Fulltime
Duration Temporary
Place of service Department of Energy and Process Engineering

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