WiSP 3 Joint Industry Project
WISP 3: WIND-ASSISTED SHIP PROPULSION
WiSP 3 will focus on the standardisation of performance predictions of wind assisted ships and updates on the regulatory framework, including EEDI, EEXI and CII. The aim is to provide industry standards on the methods to predict fuel savings and emission reductions, enabling fair comparison.
OBJECTIVES AND DESCRIPTION OF WORK
Harmonisation of class rules.
Further gap analysis in class rules and regulations will be addressed and discussed amongst class society via IACS
Improved performance predictions
Hindcast versus forecast data. Finding the impact on performance due to differences between forecast and hindcast weather data, including decisions based on the forecast data
Full scale validation. Full scale on-board measurements are analysed and compared against prediction data.
Further assessment on aerodynamics. Interaction effects, boundary layer effects and wind gust impacts are investigated
Impact on propeller and engine operations. Engine load variations, especially for hybrid propulsion systems may have an impact on the actual power and fuel savings .In case of sustained propeller unloading, pressure side cavitation on the propeller can occur.
Numerical and sea trial verification method for manoeuvrability and stability. The present IMO regulations do not address application of wind propulsion systems.
EEDI sea trial verification standards. EEDI approval standards are required. Moreover, exemption standards need to be formulated in case of wind propulsion.
Industry standards for laboratory tests on combined hydrodynamics and aerodynamics.
By seeking collaboration with wind tunnels, develop standards for determining the performance of wind propulsion systems. Standards for conducting model tests will be proposed for hydrodynamic performance assessment,
Impact of unsteady conditions on the performance of wind propulsion systems.
Wind propulsion systems may perform differently when in rough sea conditions. Time domain simulations and model tests will identify the impact.
Blueroute application
The Blueroute application will be further developed, enabling re-routing options and high fidelity performance predictions. An usergroup will be formed to properly align requirements and capabilities.
https://blueroute.application.marin.nl
Impact of WASP controls and design considerations
Focus will be on the impact of the WASP location as well as the WASP controls on the performance in operational conditions.
INTERESTED?
The project is of interest to many organisations in the maritime industry worldwide: WASP suppliers, design offices, shipyards, ship owners, ship operators, classification societies and universities. WiSP 3 is open for new participants to join. https://www.marin.nl/en/jips/wisp-3
