Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 222222
Loughborough University

Centre for Innovative and Collaborative Construction Engineering

2017


Dr Paul Dallyn

Project Title

Civil Engineering Developments within the Renewable Energy Sector

Company

E.On New Build and Technology 

Supervisors

Academic Supervisors:
Dr Ashraf El-Hamalawi
Dr Alessandro Palmeri

Industrial Supervisors:
Robert Knight
Andrew Morris

Director of Research:
Professor Stephen Ison

Research Period

2010 - 2014

Civil Engineering Developments within the Renewable Energy Sector

Sponsoring Company

E.On New Build and Technology

Context and Background

The social and economic requirement to develop and establish a greater capacity of renwable energy is increasing. This applies to a range of energy sources including wind, wave and tidal energy. This has a direct impact and places new challenges in terms of civil engineering requirements through a number of aspects including increasing size and capacity of wind turbines, available location of proposed developments with off shore developments being considered, emerging operational and maintenance issues to existing sites.

Aims and Objectives

The aim is to be better informed in a number of areas to be able to support civil engineering to better evaluate and assess future schemes, including:- a) Understanding the methods of currently employed for the design and assessment turbine supports structures. b) To review, assess and understand any potential issues relating to foundation loading and dynamic effects. c) Review and assess the risks to off shore mono pile foundations ie scour effects, and evaluate current approaches to monitor scour effects (change to natural frequency etc) d) Review of the current approaches to structural monitoring and inspection of offshore structures e) Review and assess off shore foundations, where mono pile foundations are not suitable f) Issues relating to foundations for tidal devices including understanding plant maintenance and retrieval g) Consideration of, and commercial assessment, relating to the design life of off shore civil structures.

Method and Current Status

Traditionally Wind turbine projects are procured through EPC contracts and as such structures are currently designed by OEM. With Clients engineers undertaking a high level review rather than having the ability to undertake category three independent validation of designs. Knowledge on potential long term dynamic loading of pad foundations is not known. As such the suitability of some ground material is also not fully understood Instrumentation and methods of monitoring scour by change in frequency response of structures is starting to be investigated and installed on some off shore facilities The government has recently shortlisted six potential foundation types for further development

Benefits and Expected Outcomes

In a number of areas above the knowledge and understanding of the risk and issues to be considered will be improved. This will enable a more educated position in the decision making process and be in a better position to review, assess and influence design decisions and structures constructed.

Research Period

2010-2014

Dallyn, P., El-Hamalawi, A., Palmeri, A., Knight, R., and Morris, A., 2012. Wear in Large Diameter Grouted Connections for Offshore Wind Energy Converters. Proceedings of the 10th International Conference on Advances in Steel Concrete Composite and Hybrid Structures, 2-4 July 2012, Singapore pp.638-645.

Dallyn, P., El-Hamalawi, A., Palmeri, A., 2012 Cost-Effective Parabolic Trough Foundations for Concentrated Solar Power Plants.  Proceedings of the 3rd International Conference on Engineering, Project and Production Management 2012, 10-11 September, Brighton, UK pp 227-238.

 

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+44 (0)1509 222623

The Centre Administrator
CICE
Loughborough University
Leicestershire
LE11 3TU

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