Researcher within Reactor technology

Trondheim, Norway
22 Jul 2022
End of advertisement period
15 Aug 2022
Contract Type
Full Time

About the position

The Department of Chemical Engineering has a vacancy for a researcher for one year in the reactor technology group. 

Starting date for the position is as soon as possible, and latest 01.01.2023.

About the project 

In this project the candidate will use an existing experimental facility to perform investigations on single drop and single bubble breakage by use of the image analysis technique. To understand the different breakage mechanisms, fluid particles with different properties (e.g., viscosity, density, size, etc) and system properties like interface tension will be analyzed. At least 3-4 different oils with different properties should be evaluated and a comparison with bubble breakage mechanisms should be performed. These data will be used for improved understanding of the phenomena and for model development.  Software for the image analysis has been developed in previous work. Development of improved and faster analysis by use of Machine Learning might be an option.  

The experimental data gathered must be evaluated by statistical analysis to ensure sufficient accuracy. Data should be gathered for each breakage mechanism separately. After a sufficient database has been established, universal breakage kernel functions should be developed enabling simulations of phase separation equipment in the framework of the population balance model.  Possible kernel function parameters may be fitted to the experimental data.  

The candidate will work in team , and the tasks may be tailored to the applicant as purely experimental, purely theoretical or a combination depending on scientific background, experience, and interests.

A main goal is to make the data available for the industry partners in the form of innovative population balance model breakage kernels.

Your immediate leader is Professor Hugo A Jakobsen.

Duties of the position

  • Run experiments in an existing facility at IKP
  • Perform image analysis of raw data and statistical data analysis
  • Develop novel breakage kernel functions validated by use of the data
  • Write scientific publications

Required selection criteria

  • A qualified candidate must hold a MSc in Chemical Engineering, Mechanical Engineering or similar
  • Experience with similar work (experimental and/or theoretical)
  • Relevant scientific background
  • Good written and oral English language skills

Preferred selection criteria

  • Specialization in multiphase flow is an advantage.
  • A PhD degree on a relevant topic is also an advantage.

Personal characteristics

  • Motivated candidate that may perform independent work
  • Able to work in team
  • In good humor social

We offer

Salary and conditions

The gross salary for the position of Researcher (code 1108) is remunerated depending on qualifications and seniority. From the salary, 2% is deducted as a contribution to the Norwegian Public Service Pension Fund,

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

The position is subject to external funding (via the SFI SUBPRO 

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

About the application

The application and supporting documentation must be in English.

Please note that your application will be considered based solely on information submitted by the application deadline. You must therefore ensure that your application clearly demonstrates how your skills and experience fulfil the criteria specified above.  If, for any reason, you have taken a career break or have had an atypical career and wish to disclose this in your application, the selection committee will take this into account, recognizing that the quantity of your research may be reduced as a result. 

The application must include:

  • CV, certificates and diplomas 
  • A description of the academic/artistic works that you regard as most relevant and that you particularly want to be taken into account in the assessment 
  • Names and contact information for three relevant referees 

Joint work will also be considered. If it is difficult to identify your specific input to a joint project, you must include evidence of your contributions. 

In the assessment of the best qualified applicant, we will emphasize education, experience and personal suitability as well as your motivation for the position. 

NTNU is committed to following evaluation criteria for research quality according to The San Francisco Declaration on Research Assessment - DORA. This means that we pay special attention to the quality and professional breadth of these works. We also consider experience from research management and participation in research projects. We place great emphasis on your scientific work from the last five years.

General information

NTNU believes that inclusion and diversity is a strength. We want our faculty and staff to reflect Norway’s culturally diverse population and we continuously seek to hire the best minds. This enables NTNU to increase productivity and innovation, improve decision making processes, raise employee satisfaction, compete academically with global top-ranking institutions and carry out our social responsibilities within education and research. NTNU emphasizes accessibility and encourages qualified candidates to apply regardless of gender identity, ability status, periods of unemployment or ethnic and 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.

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. 

A public list of applicants with name, age, job title and municipality of residence is prepared after the application deadline. If you want to reserve yourself from entry on the public applicant list, this must be justified. Assessment will be made in accordance with current legislation. You will be notified if the reservation is not accepted.

If you have any questions about the position, please contact Professor Hugo A Jakobsen, telephone +47 73594132, email If you have any questions about the recruitment process, please contact HR Advisor Nina Sandberg, e-mail:

If you think this looks interesting and in line with your qualifications, please submit your application electronically via with your CV, diplomas and certificates attached. Applications submitted elsewhere will not be considered. Upon request, you must be able to obtain certified copies of your documentation. 

Application deadline: 15.08.2022

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 Chemical Engineering

We take chemistry from laboratory scale to industrial production. This demands a wide range of knowledge, from molecular processes and nanotechnology to building and operation of large processing plants. We educate graduates for some of Norway's most important industries. The Department of Chemical Engineering is one of eight departments in the Faculty of Natural Sciences.  

Deadline 15th August 2022
Employer NTNU - Norwegian University of Science and Technology
Municipality Trondheim
Scope Fulltime
Duration Temporary
Place of service Gløshaugen, Trondheim