Norwegian Ferry Propulsion Retrofit a Money Saver

By George Backwell at October 05, 2013 03:47
Filed Under: Propulsion systems
Rolls-Royce has won a contract to supply its Promas Lite propulsion system to the Norwegian ship owner Hurtigruten for their cruise ship MV Richard With. Propeller efficiency improvement for the ship is estimated to be between 11-14 per cent at 15 knots. MV Richard With: Photo courtesy the owners Promas Lite is a version of the Rolls-Royce Promas integrated propeller and rudder system which is designed specifically for vessels already in service. It is well known that with advances in propeller design, propeller blade changes, or the fitting of new propellers, can have a significant effect on propulsive efficiency, fuel consumption and, therefore, emissions. With Promas Lite these improvements can be maximised, as the propeller and rudder are treated as a complete system, and further increases in efficiency can be achieved with improved manoeuvrability for only a small increase in cost. First, extensive modelling work is carried out at the Rolls-Royce Hydrodynamic Research Centre in Sw... [More]

Propeller conversions bring greater efficiencies and lower emissions

By Keith Henderson at June 07, 2011 02:54
Filed Under:
Rolls-Royce’s Promas integrated propeller and rudder system claims to offer gains in propulsive efficiency of between five to fifteen per cent for new builds and retrofits. The resulting benefit in practice depends on a number of factors, so each vessel needs to be considered on its merits however in most cases the payback period lies between 18 to 24 months.. Improvements can be made to FPP and CPP systems with single and multiple propellers. A Promas Lite system can be installed during a scheduled drydocking and can normally be fitted within a week. [More]

Tag cloud