Rolls-Royce Marine - The Environship Concept

Transcription

1 Rolls-Royce Marine - The Environship Concept LNG Seminar Høyskolen i Ålesund 8 november 2011 System Solutions & Wave Piercing Technology Per Egil Vedlog 2009 Rolls-Royce plc The information in this document is the property of Rolls-Royce plc and may not be copied or communicated to a third party, or used for any purpose other than that for which it is supplied without the express written consent of Rolls-Royce plc. This Design information is Manager given in good faith, Ship based Technology upon the latest information - Merchant available to Rolls-Royce plc, no warranty or representation is given concerning such information, which must not be taken as establishing any contractual or other commitment binding upon Rolls-Royce plc or any of its subsidiary or associated companies.

2 Topics in this presentation Environship Concept System Solutions in STM The Concept Rolls-Royce PROMAS Rolls-Royce Gas Engines & Systems Rolls-Royce HSG Hybrid Shaft Generator Rolls-Royce Wave Piercing Technology

3 Rolls-Royce Environship Concept Merchant

4 The Concept 1 - PROMAS 2 - Rolls-Royce GAS ENGINE 3 - HSG 4 WAVE PIERCING BOW

5 PROMAS Integrate Rudder & Propulsion System Promas integrates the propeller, a hub cap, a rudder bulb and the rudder itself into a hydrodynamically efficient entity. Propeller and rudder are designed together as a single unit. Better load distribution on propeller. No hub vortex losses Propulsive efficiency is increased by typically 4-8%. Less fuel consumption Less environmental impact Improved low speed maneuverability. Less pressure pulse towards hull / low noise propeller and vibration. Simple and robust design. Almost as easy to install as a conventional propeller-rudder system. PROMAS LITE Retrofit Existing Vessels

6 MJ/kWh g/kwh NOx Gas Engine & Systems Gas consumption & NOx for variable versus fixed RPM Lean Burn Gas engines 92% reduced NOx emission 22% reduced CO2 emission % reduced SOx emission 98% reduced particulates MJ/kWh propellercurve MJ/kWh 1000 rpm g/kwh NOx propellercurve NOx 1000 rpm % 20 % 40 % 60 % 80 % 100 % Engine Power % Gas consumption comparison Generators Single fuel vs Dual fuel 100% Load 7,7% Diff. 50% Load 16,1% Diff.

7 HSG Hybrid Shaft Generator Shaft generator to switchboard power flow control. Engine and propeller can operate at variable speeds Stable network frequency Fixed voltage. Benefits Reduced fuel consumption Flexible operations Optimised propulsion mode selection Longer engine life and reduced maintenance Increased comfort on board Improved redundancy A Range of Operational Modes Boost mode Transit mode Parallel mode Diesel/gas electric mode

8 Wave Piercing Technology How does it work. 1. Maximum Waterline Length / Less Resistance Length/Breadth ratio Optimised Water entrance angle optimised Reduced shoulder No Flare at bow Less speed loss In A Sea Way Less Green Sea Less Bow Impact / Slamming Straight lined Curved Wave Piercing Bow Conventional Bow

9 R&D 8000 Merchant Innovation Project Description of the study Systematic evaluations / benchmarking between combinations of 4 different propulsion solutions 3 different bow solutions

10 CFD Analysis, Simulations og Tests CFD Modelling and iterations Results from the CFD analysis indicates a difference on hull resistance of up to 8% in favour of the new bow Simulations Software used Vres TM (Vessel responses) UTC Simulator (6 deg of freedom) Verification by Model Tests Open Water Tests Resistance Tests Propulsion Tests Sea Keeping Tests Streamline Tests

11 Benchmarking from Model tests Speedloss in a seaway Accelerations in foreship

12 The Concept Summary Environship Concept - Applicable for all types of vessels Combining PROMAS - Increased propulsive efficiency and improved manoeuverability Rolls-Royce Gas Engines Improved efficiency and less emission HSG Optimal Vessel Operation Rolls-Royce Wave Piercing Technology Less resistance, speed loss and accelerations in a seaway

13 Thank you for your kind attention! Questions?