Project

Harvesting green energy with magnets

Publisher

Supervisor

Location

Greater Copenhagen area

Challenge: There is a lot of focus on reducing energy and heat waste. Several technologies exist to harvest waste heat from industrial processes, but there is a large production of so-called low-grade heat that is not hot enough to be harvested conventionally. The challenge in this project is to utilise the temperature dependent properties of magnetic materials to harvest waste heat at an economically favourable rate and price.

Idea: The idea in the project is to model and maybe construct a thermomagnetic generator. The principle behind such a device is that the attraction between a magnetic material and a magnet will depend on the temperature of the material. By cycling the temperature this changing attractive force can be used to drive a generator and thus produce electricity. The idea was originally proposed by Tesla in 1889 and developed by other researcher since then. New developments in magnetic materials and the shaping of these has opened up the opportunity to utilise the principle in a real device. In addition, powerful modelling tools developed at DTU Energi allow the optimisation of performance and dimensioning of such a device.

Students’ task: In the project, you will use the modelling tools to identify a possible implementation of a thermomagnetic generator device. If you are interested, it will also be possible to realise a prototype of such a device, either in this project or in a future project.


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Contact

Company / Organization

DTU Energi

Name

Christian Bahl

Position

Seniorforsker

Mail

chrb@dtu.dk

Supervisor info

BSc in Physics and Nanotechnology

Supervisor

Christian Bahl

Co-supervisors

Rasmus Bjørk

ECTS credits

15 - 50

Type

BSc project, Course project, MSc thesis, Special course

Bachelor in General Engineering

Supervisor

Christian Bahl

Co-supervisors

Rasmus Bjørk

ECTS credits

15 - 50

Type

BSc project, Course project, MSc thesis, Special course

MSc in Sustainable Energy

Supervisor

Christian Bahl

Co-supervisors

Rasmus Bjørk

ECTS credits

15 - 50

Type

BSc project, Course project, MSc thesis, Special course

MSc in Physics and Nanotechnology

Supervisor

Christian Bahl

Co-supervisors

Rasmus Bjørk

ECTS credits

15 - 50

Type

BSc project, Course project, MSc thesis, Special course

MSc in Mathematical Modelling and Computation

Supervisor

Christian Bahl

Co-supervisors

Rasmus Bjørk

ECTS credits

15 - 50

Type

BSc project, Course project, MSc thesis, Special course

Technical University of Denmark

For almost two centuries DTU, Technical University of Denmark, has been dedicated to fulfilling the vision of H.C. Ørsted – the father of electromagnetism – who founded the university in 1829 to develop and create value using the natural sciences and the technical sciences to benefit society.


Today, DTU is ranked as one of the foremost technical universities in Europe, continues to set new records in the number of publications, and persistently increases and develops our partnerships with industry, and assignments accomplished by DTU’s public sector consultancy.

Find us here

Anker Engelunds Vej 1
Bygning 101A
2800 Kgs. Lyngby

Denmark



Tlf. (+45) 45 25 25 25

CVR-nr. 30 06 09 46

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