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Technology sought for noise reduction for ship engine exhaust

Country of Origin: United Kingdom
Reference Number: TRUK20191104001
Publication Date: 4 November 2019


A multinational shipping enterprise with a registered base in Scotland (UK) is seeking novel, cost-effective approaches to reduce low frequency noise (10Hz) created by the exhaust of diesel engines. The Scottish company is looking for partnerships via a commercial agreement with technical assistance or a technical cooperation agreement. The company is especially interested in technologies that are near to market.


A Multinational shipping enterprise with a registered base in Scotland (UK) is seeking solutions that can be applied to cargo and passenger ships that travel in all of the world's oceans. 

Currently, exhaust from 8-cylinder diesel engines creates a low frequency noise in the funnel of our passenger ferries that can cause building vibrations and unpleasant pressure on the ears as ships approach the shore to dock at the pier. During inclement weather, these docking maneuvers take longer to complete and complaints from nearby residents increase.

The client is looking to partner with companies that have a solution or a potential solution that is near to market and is therefore looking for partnerships via a commercial agreement with technical assistance or a technical cooperation agreement. The company is willing to consider technology from other end-application sectors that is capable of addressing the problem set out here. The client is flexible in the approach to required development. Some budget may be made available for development and this could include being actively involved in the development of a solution, technical overview of the end application and provision of testing facilities.

Expertise sought

The company is interested in cost effective solutions for noise reduction from a ship engine exhaust. Traditional passive noise control systems would require quite large installations to manage the long wavelengths associated with very low frequency noise. Alternative, tunable, active noise control systems are of high interest, as well as any advanced material technologies for noise management.

Evaluation Criteria:
1. Technical Viability-- Solutions proposed must be based on sound scientific principles and have pilot scale data that demonstrate efficacy. Also, the associated equipment must be able to withstand the harsh environment inside an exhaust stack.
2. Scale up Potential—Solutions proposed must have a clear pathway to application on commercial ships. Solutions already practised in marine markets have higher value. The ideal partner would be able to lead the design and installation of full-scale systems.
3. Capital and Operating costs—The cost for any proposed solution should include a full life-cycle analysis (including capital/installation costs, maintenance costs, installation time, etc.)
4. Ship Operations—solutions should not impact the normal operation of the ship engine. The equipment space and weight must be able to be retrofitted onto existing vessels. Moreover the equipment should not increase back pressure to the point it effects engine performance.
5. Ownership—Solutions covered by patents have higher value. At a minimum, proposed solutions must not be prohibited by other patents in the field.
6. Intellectual Property Requirements — None required when using exiting solutions, however where the company takes technology and creates a bespoke applied solution then patents and IP may need to be sought.

Killer Issues:
Solutions will not be considered if, in the Company's opinion:
• Installation and maintenance costs are prohibitive for broad application
• Proposals lack sufficient supporting pilot scale data
• Solutions don't adhere to global maritime environmental or safety regulations
• Solutions would void guarantees from engine suppliers. Approval may be needed.

Requested partner

A partner is sought that can provide a way to reduce noise for a ship engine exhaust. The partner must be able to demonstrate laboratory or pilot scale data and be able to show a clear pathway to application on commercial ships.

The client is flexible in the amount of technical involvement in the type of partnership considered. Where some development is required for the specific application considered here, the product could be developed jointly or there could be some other commercial agreement for development with technical assistance.

Cooperation offer ist closed for requests