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  Structural modelling and optimization of direct-driven electrical generators for offshore renewable energy converters “SMODEREC”


   School of Computing, Engineering & the Built Environment

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  Dr Z Cai, Dr Pablo Jaen-Sola, Dr F Sukki  No more applications being accepted  Funded PhD Project (Students Worldwide)

About the Project

The School of Engineering and the Built Environment, “SEBE”, at Edinburgh Napier University is a portal for research and knowledge transfer that has contributed extensively to develop and promote renewable and sustainable energy devices in the UK and abroad over the last 30 years. Through the expert services that the School offers industry has been supported in meeting the demanding energy challenges and government requirements.

A fully funded 3-year PhD position is available to work with a team of experienced researchers on one of the most challenging areas that the offshore wind energy industry is facing at the moment. Offshore wind energy is a vibrant energy engineering sector with an important role to play in tackling climate change. Recent trends show how direct-drive electrical generators have drawn the attention of manufacturers as higher availability and efficiency are achieved due to the elimination of the gearbox from the powertrain. However, this innovative design also introduces a new set of challenges. With the removal of the gearbox loads coming from the wind turbine rotor are directly transmitted into the structure of the electrical generator. In order to maintain the power rating of the turbine it is necessary to increase the size of the generator too which in turn leads to a very large and heavy piece of machinery.

Different computational and experimental techniques will be evaluated and used to lightweight the electrical machine structure while withstanding with the severe conditions imposed by the harsh offshore environment with a view to reduce the machine capital and O&M costs, which represent a substantial portion of the levelised cost of energy. Industrial support will ensure the alignment of the project with the sector necessities. Due to time limitations we have not been able to attached a letter of support from our industrial partner but we will bring in an industrial advisor from Wood group (Glasgow).

Successful candidate will be able to conduct lab demonstration classes for additional payment on the top of the stipend

Academic Qualifications

A first degree (at least a 2:1) ideally in mechanical/structural engineering with a good fundamental knowledge of finite element modelling

English language requirement

IELTS score must be at least 6.5 (with not less than 6.0 in each of the four components). Other equivalent qualifications will be accepted. Full details of the University's policy are available online.

Essential attributes

Experience of fundamental mechanical engineering applied to renewable energy devices

Competent in CAD and finite element modelling (ANSYS)

Knowledge of optimization and simulation

Good written and oral communication skills

Strong motivation with evidence of independent research skills relevant to the project

Good time management

Desirable attributes

Knowledge of Matlab for data analysis

Interest in manufacturing methods

APPLICATION CHECKLIST

Please quote reference SEBE21004 on your application

• Completed application form (using the given link below)

• CV

• 2 academic references, using the Postgraduate Educational Reference Form (Found on the application process page)

• A personal research statement (This should include (a) a brief description of your relevant experience and skills, (b) an indication of

what you would uniquely bring to the project and (c) a statement of how this project fits with your future direction.)

• Evidence of proficiency in English (if appropriate)

Please apply via this link: https://www.napier.ac.uk/research-and-innovation/research-degrees/application-process

Engineering (12)

References

T. Muneer, E. J. Gago and S. Etxebarria, Solar and Wind Energy, Springer, November 2021.
N. H. Naqiuddin, L. H. Saw, M. C. Yew, F. Yusof, H. M. Poon, Z. Cai and H. S. Thiam, “Numerical investigation for optimizing segmented micro-channel heat sink by Taguchi-Grey method”, in Applied Energy, 222, pp. 437-450, 2018.
P. Jaen-Sola, “Advanced Structural Modelling and Design of Wind Turbine Electrical Generators”, PhD. Thesis, Wind Energy Systems DTC, University of Strathclyde, Glasgow, 2017.
P. Jaen-Sola, A.S. McDonald and E. Oterkus, “Dynamic structural design of offshore direct-drive wind turbine electrical generators”, in Ocean Engineering, Elsevier Series, 161, 1-19, 2019.
P. Jaen-Sola, A.S. McDonald and E. Oterkus, ”Design of direct-drive wind turbine electrical generator structures using topology optimization techniques”, in Journal of Physics: Conference Series 1618 (5), 2020.
F. Muhammad-Sukki et al., “Mathematical Modelling of a Static Concentrating Photovoltaic: Simulation and Experimental Validation”, in Applied Sciences 11 (9), 2021.

 About the Project