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reference: 4932728

documentId: 4932728

connectionPointId: 7

lastModificationDate: 1547806717623

stillingsbetegnelse:
PhD scholarship in Ventilation Exhaust Air Heat Pumps with Low-GWP Refrigerants

jobbeskrivelse:

The present PhD project will be hosted by DTU, Department of Mechanical Engineering, Section of Thermal Energy.

The section covers research and education in energy conversion in a broad sense based on a mechanical engineering foundation with focus on the plants and equipment involved, such as power cycles, heat supply, internal combustion engines, alternative fuels, refrigeration and heat pumps. The research accordingly includes aspects of theoretical work, numerical modeling and experiments.

Research field of the position

• Exhaust air heat pumps offer heating solutions in areas without access to district heating. Exhaust air heat pumps use exhaust air from the ventilation system of a building as the heat source in order to supply space heating and possibly domestic hot water heating.
• State-of-the-art exhaust air heat pumps use HFC refrigerants, which are subject to a phase-out in Europe. Therefore, the aim is to develop new technology that uses low-GWP refrigerants, increases the energy efficiency and ensures the safety of the products.
• The research will be conducted in close collaboration with the industrial partners in the project.

Responsibilities and tasks

The focus of the research is to investigate solutions for using low-GWP refrigerants in exhaust air heat pumps. This will include a screening of possible refrigerants to be used and a study of possibilities for refrigerant charge minimization.

The main aim of the research is to formulate suggestions on component designs and system control configuration by means of numerical modelling. Hence, the PhD student will be assisting the project partners in designing exhaust air heat pumps with low-GWP refrigerants, and to provide detailed validation of the development part of the project carried out by the partners.

The results of the research work will be disseminated in papers in international journals and by presentations at international conferences. In addition, the PhD student will be involved in teaching and supervision of students in fields closely related to the research.

• The PhD student will develop advanced numerical models of exhaust air heat pumps and of innovative heat transfer solutions
• The PhD student will work in close collaboration with industrial partners developing innovative solutions
• The PhD student will communicate and disseminate results to national and international audiences both in industry and academia
• The PhD student will be working closely together with other researchers in the section for development of common modelling tools and solutions
• The PhD student will develop project ideas for students at all levels and will be engaged in the supervision of the projects carried out by the students.

Qualifications

Candidates should have a two-year master's degree (120 ECTS points) or a similar degree with an academic level equivalent to a two-year master's degree.

We expect the successful candidate to have a background involving numerical modelling of thermal systems and a profound understanding of refrigeration and heat pump systems and technology.

Approval and Enrolment

The scholarship for the PhD degree is subject to academic approval, and the candidate will be enrolled in one of the general degree programmes at DTU. For information about our enrolment requirements and the general planning of the PhD study programme, please see the DTU PhD Guide. http://www.dtu.dk/english/Education/PhD/Rules/PhDguide

Assessment

The assessment of the applicants will be made by Associate Professor Wiebke Brix Markussen and Researcher Jonas Kjær Jensen.

We offer

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 appointment terms

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 3 years.

You can read more about career paths at DTU here. http://www.dtu.dk/english/about/job-and-career/working-at-dtu/career-paths

Further information

Further information may be obtained from Associate Professor Wiebke Brix Markussen, tel.: +45 4525 4130, email: wb (at) mek.dtu.dk.

You can read more about Department of Mechanical Engineering on http://www.mek.dtu.dk. http://www.mek.dtu.dk/

Application

Please submit your online application no later than 4 February 2019 (local time). To apply, please open the link "Apply online", fill out the online application form. The following must be attached in English:

• A letter motivating the application (cover letter)
• Curriculum vitae
• Grade transcripts and BSc/MSc diploma
• Excel sheet with translation of grades to the Danish grading system (see guidelines and Excel spreadsheet here) http://www.dtu.dk/english/Education/phd/Applicant/Pre_acceptance-1-

Candidates may apply prior to obtaining their master's degree but cannot begin before having received it.

Applications and enclosures received after the deadline will not be considered.

All interested candidates irrespective of age, gender, race, disability, 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 150 persons, 95 PhD students and a technical/administrative support staff of about 80 persons.

DTU is a technical university providing internationally leading research, education, innovation and scientific advice. Our staff of 6,000 advance science and technology to create innovative solutions that meet the demands of society, and our 11,200 students are being educated to address the technological challenges of the future. DTU is an independent academic university collaborating globally with business, industry, government and public agencies.


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jobCategoriesCodes_0: http://data.europa.eu/esco/isco/C2310

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positionTypeCode: directhire

contractTypeCodes_0: fulltime

Arbejdsgiver Navn: Danmarks Tekniske Universitet

source: DK-STAR