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A German SME would like to develop a wave energy converter further. The converter based on the “New Bristol Cylinder” concept - a known but unexplored concept. The company seeks for cooperating and self-financing partners in research, engineering and demonstration activities. Cooperation is possible via a research/technical cooperation agreement, preferably in joint projects with industrial partners and research partners who are prepared to take coordination role or under a financial agreement.
The company is located in the north-eastern part of Germany and has over 60 years’ experience in machine building. Due to partnerships with leading research centres, the SME has developed several concepts of wave energy converters over the past seven years.
The wave energy device consists of a submerged buoyant cylindrical body. It is connected to the seabed by a set of tensioned mooring lines. The cylinder is able to pivot about an axis assumed to be above the seabed and held fixed with respect to the latter.
Inside the cylinder, there are either one or more systems of mechanical pendulums or several chambers filled with sloshing water. The rotation of the mechanical pendulums or the sloshing of the water used to drive air turbines will provide the power. For further reference, see  and  below.
The concept complies with major requirements: It is highly efficient over a broad range of wave periods. All sensitive parts are inside the cylinder. Accessibility is provided. Assuming a mooring system that can be wound up and down, the power absorption of the device can be adapted to the current sea conditions thus giving an excellent survivability to the system. There is no need for any type of end stoppers. It is assumed that economic vessels (multi cat vessels) will be able to install the system.
The challenges, amongst others, lie in the development of the adjustable mooring system with pivoting axis and in the control of large internal swinging masses.
After decades of research and development, converting the energy of ocean waves into useable energy remains a big challenge. A successful wave energy converter must not only survive the harshest sea conditions, its installation and maintenance must also be easy and maybe above all, it shall “harvest” the ocean waves in an efficient way.
To increase the efficiency and the survivability of wave energy converters a promising concept has been mathematically described by Crowley et al  . The so called “New Bristol Cylinder” seems to meet the key requirements of a modern wave energy converter. Yet, it is to show that this concept is able to fulfil the expectations. Therefore, the research team is looking for business partners, which are willing to invest time and money to explore the concept idea both numerically and experimentally further. The concept shall be developed jointly stage by stage to market readiness.
 A submerged cylinder wave energy converter, S.H. Crowley, R. Porter, D.V. Evans, School of Mathematics, University of Bristol, 2012.
 A submerged cylinder wave energy converter with internal sloshing power take off, S.H. Crowley, R. Porter, D.V. Evans, School of Mathematics, University of Bristol, 2014.
To the best of our knowledge, no patents have been registered yet.
The company seeks for cooperating and self-financing partners in research, engineering and demonstration activities. The partners should have technological expertise in marine technology, mooring, sea cabling, electrical engineering, control technology, monitoring, hydraulic and civil engineering, energy supply and/or installation and maintenance of marine structures.
Together with our partners, the research team would like to:
- Develop the concept further
- Prove the technical feasibility
- Prove the economic viability of the concept
- Make use of available solutions
- Connect to industrial partners to adapt for foreign markets
- Use testing and demonstration facilities
- Develop a product of market readiness.
The company looks for a cooperation in the frame of a research or technical cooperation agreement, preferably in joint projects with industrial partners and research partners. Preferred is a partner who takes over the coordination role. A cooperation under a financial agreement is also possible.
DIN EN 1090-2, DIN EN ISO 9001, DVS EN ISO 3834-2