Dr Maurizio Collu

Reader

Naval Architecture, Ocean and Marine Engineering

Personal statement

I am a Reader in Offshore Renewable Energy Systems, and I joined the NAOME Department of the University of Strathclyde in August 2018. My area of expertise is applied mechanics, focusing in particular on multidisciplinary, coupled model of dynamics for offshore renewable energy systems. I apply this expertise to develop conceptual and preliminary design methodologies for offshore renewable energy systems.

I am currently the Principal Investigator of one of the five EPSRC Joint UK-China Offshore Renewable Energy flagship projects, the 3 years, £ 0.8m project INNO-MPP  (http://gow.epsrc.ac.uk/NGBOViewGrant.aspx?GrantRef=EP/R007497/1). With my research group, we are focusing on the development of multi-purpose offshore platforms for the sustainable development of small/isolated communities, exploiting the synergies among offshore renewable energy and aquaculture industries.

I am also Work Package leader in the 3.5 years, € 10m EU H2020 project “The Blue Growth Farm” (http://www.thebluegrowthfarm.eu/) (https://cordis.europa.eu/project/rcn/216067_en.html), focusing on the development and demonstration of an automated, modular and environmentally friendly multi-functional platform for open sea farm installations of the Blue Growth Industry. In this project, I am in charge of the development of a multidisciplinary, coupled model of dynamics of this multi-purpose platform.

Furthermore, I am a Co-Investigator and Work Package leader in a prestigious 3 years, 3 m£ EPSRC project  HOME-Offshore (http://homeoffshore.org/), which focuses on merging Artificial Intelligence, Robotic inspection and Advanced Physics Modelling to lower the cost of offshore wind farm maintenance.

I sit on several international committees, including the ITTC Specialist Committee on Hydrodynamic Modelling of Marine Renewable Energy Devices and the OMAE Ocean Renewable Energy technical committee.

In the past, I had been the Principal Investigator on an Innovate UK project, focusing on the conceptual and preliminary design of a novel floating support structure for tidal turbines (http://gow.epsrc.ac.uk/NGBOViewGrant.aspx?GrantRef=EP/P510348/1). I also led the conceptual design of the floating support structure in the £2.8m ETI funded project NOVA (https://www.eti.co.uk/programmes/offshore-wind/nova), and as work package leader I led the development of a coupled model of dynamics for a hybrid wind-wave offshore floating system in the EU FP7 project H2Ocean (http://www.h2ocean-project.eu/).

I am also leading the conceptual and preliminary design of aerodynamically alleviated marine vehicles (AAMV), an area of research initiated with my PhD, and for which I have been awarded the prestigious RINA “Calder Prize”. The work has been published in the Royal Society Proc A journal (doi:10.1098/rspa.2009.0459), and it also led to a patented novel trim control mechanism for high speed marine vehicles (Patent GB2472266).

Publications

Performance analysis of a sea javelin wave energy converter in irregular wave
Liu Hengxu, Ao Jingtao, Chen Hailong, Liu Ming, Collu Maurizio, Liu Jun
Journal of Coastal Research, pp. 932–940 (2018)
https://doi.org/10.2112/SI83-155.1
On intermediate-scale open-sea experiments on floating offshore structures : feasibility and application on a spar support for offshore wind turbines
Ruzzo Carlo, Fiamma Vincenzo, Collu Maurizio, Failla Giuseppe, Nava Vincenzo, Arena Felice
Marine Structures Vol 61, pp. 220-237 (2018)
https://doi.org/10.1016/j.marstruc.2018.06.002
Progress on the development of a holistic coupled model of dynamics for offshore wind farms, phase I : aero-hydro-servoelastic model, with drive train model, for a single wind turbine
Lin Z, Cevasco D, Collu M
ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2018 (2018)
https://doi.org/10.1115/OMAE2018-77886
On mooring line tension and fatigue prediction for offshore vertical axis wind turbines : a comparison of lumped mass and quasi-static approaches
Cevasco D, Collu M, Rizzo C M, Hall M
Wind Engineering Vol 42, pp. 97-107 (2018)
https://doi.org/10.1177/0309524X18756962
Harmonized and systematic assessment of microalgae energy potential for biodiesel production
Arcigni Francesco, Friso Riccardo, Collu Maurizio, Venturini Mauro
Renewable and Sustainable Energy Reviews Vol 101, pp. 614-624 (2018)
https://doi.org/10.1016/j.rser.2018.11.024
Critical review of floating support structures for offshore wind farm deployment
Leimeister M, Kolios A, Collu M
Journal of Physics: Conference Series Vol 1104 (2018)
https://doi.org/10.1088/1742-6596/1104/1/012007

more publications

Projects

The Blue Growth Farm
Collu, Maurizio (Principal Investigator) Li, Liang (Researcher)
The global demand of seafood is growing rapidly, but currently there is a shortage in supply due to the combined effects of over-exploitation by commercial fisheries, habitat degradation and poor water quality.
Further expansion of aquaculture, both land-based and nearshore, is limited for a variety of reasons, such as economic, socio-political, environmental, technical and resource constraints.

However, moving offshore creates significant advantages and opportunities in meeting the global demand for food especially when the aquaculture system is combined with other activities such as renewable energy production.

In fact, joint exploitation of offshore wind and wave energy resources has also a number of advantages that include:

- higher availability of produced power when swells continue after the wind has declined
- higher quality of power delivered to the grid when mixing the power from wind and wave energy
- lower structural and erection costs per MW if the two converter systems share the same base structure
- lower electric cable cost per MW by sharing the same transmission cable
- lower operation and maintenance costs
- less area and environmental impact for combined farms.

Moreover, open sea farming has evident benefits as well:

- greater water exchange leading to increased oxygen levels, reduced ammonia, improved waste dispersion
- lower impact on the benthos, due to improved waste dispersal
- more stable temperature and salinity conditions
- reduced fouling of the equipment
- better quality fish due to muscle use in stronger currents.
- reduced risk of disease.

However, a move offshore requires some innovative holding system and infrastructure design solutions in order to withstand the much higher energy environment compared to that experienced by current traditional inshore fish farming facilities.

In addition, due to its offshore location and thus the potentially limited operator access to the farm under storm conditions, there is a need to develop and implement greater mechanisation, automation and remote management of routine production operations from feeding to harvesting.

This is why The Blue Growth Farm project aims at developing and demonstrating an automated, modular and environmentally friendly multi-functional platform for open sea farm installations of the Blue Growth Industry.

The main challenges for the project consortium are:

- design for low environmental impact
-0 study solutions for the diverse interactions (wind rotor – concrete platform; concrete platform modules connection; concrete platform – cage connections; cage connections – mooring system)
- provide mitigating solutions to the different interactions between the installed technologies, fish farm and living sea environment
- Optimise / maximise production rate and profitability.
01-Jan-2018 - 01-Jan-2022
Investigation of the novel challenges of an integrated offshore multi-purpose platform
Collu, Maurizio (Principal Investigator) Kalathiparambil Abeendranath, Abhinav (Researcher) Leithead, Bill (Co-investigator) Anaya-Lara, Olimpo (Co-investigator) Yue, Hong (Co-investigator) Recalde Camacho, Luis (Researcher)
03-Jan-2017 - 02-Jan-2020
Holistic Operation and Maintenance for Energy from Offshore Wind Farms
Barnes, Mike (Principal Investigator) Collu, Maurizio (Co-investigator) Lin, Zi (Researcher) Cevasco, Debora (Post Grad Student)
HOME Offshore is a research project funded by the UK Engineering and Physical Sciences Research Council (EPSRC) which partners 5 leading UK universities. The project will investigate the use of advanced sensing, robotics, virtual reality models and artificial intelligence to reduce maintenance cost and effort for offshore windfarms. Predictive and diagnostic techniques will allow problems to be picked up early, when easy and inexpensive maintenance will allow problems to be readily fixed. Robots and advanced sensors will be used to minimise the need for human intervention in the hazardous offshore environment.

The remote inspection and asset management of offshore wind farms and their connection to shore, is an industry which will be worth up to £2 billion annually by 2025 in the UK alone. 80% to 90% of the cost of offshore Operation and Maintenance according to the Crown Estate is generated by access requirements: such as the need to get engineers and technicians to remote sites to evaluate a problem and decide what action to undertake. Such inspection takes place in a remote and hazardous environment and requires highly trained personnel, of which there is likely to be a shortage in coming years. Additionally much condition monitoring data which is presently generated is not useful or not used effectively.

The project therefore aims to make generate more ‘actionable data’ – useful information that can reduce operation and maintenance costs and improve safety.
02-Jan-2017 - 31-Jan-2020

more projects

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