Bore Sea – RoFlex® vessel with energy efficient shaft generator configuration
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Bore Ltd's m/v Bore Sea, a roflex vessel, was optimized using Vacon NXP technology to enhance propulsion machinery and energy efficiency amidst low freight rates and high bunker costs. The implemented solution allows variations in engine speed while maintaining constant voltage and frequency, resulting in significant fuel savings of about 10% and a reduction in CO2 emissions by approximately 2000 tonnes annually. The project highlights successful energy efficiency improvements, essential for marine operations during economic challenges.
Bore Sea – RoFlex® vessel with energy efficient shaft generator configuration
- 1. Vacon case study Bore ltd www.vacon.com1 Photo courtesy of Bore Ltd RoFlex® vessel with energy efficient shaft generator configuration Client name: WE Tech Solutions Oy and Bore Ltd Segment: Marine & Offshore Products used: VACON® NXP Location: Helsinki, Finland
- 2. Vacon case study Bore ltd www.vacon.com2 Key facts of client: • M/V Bore Sea one of two RoFlex vessels ordered by Bore Ltd from Flensburger Schiffbau-Gesellschaft in Germany • RoRo vessel designed for flexible cargo solutions to provide easy access and low fuel consumption
- 3. Vacon case study Bore ltd www.vacon.com3 Challenge: • WE Tech Solutions Oy given the task of providing a solution to optimize main propulsion machinery and improve energy efficiency • Global economic crisis has meant that freight rates are low and bunker costs are high making it even harder to comply with requirements. • Constant voltage and frequency requirements of ship grid sets limits on engine speed
- 4. Vacon case study Bore ltd www.vacon.com4 Solution: • Solution based on VACON® NXP Grid Converter technology between shaft generator and the ship’s electrical network, allows for large variation in main engine speed • Power still delivered with constant voltage and frequency to electrical network
- 5. Vacon case study Bore ltd www.vacon.com5 Testimonial: “We’re very pleased with the improved energy efficiency achieved through the various technical solutions used on M/V Bore Sea. Data analyses verify that the WE Tech Solutions’ shaft generator with VACON® AC drives brings savings of approximately 10% in fuel costs. Given that fuel costs are about EUR500 per tonne, the annual cost savings are significant, and on top of that CO2 emissions are also cut by approximately 2000 tonnes.” Jörgen Mansnerus VP Marine Management Bore Ltd For full story: http://www.vacon.com/Vacon/media/References/Bore-Sea--RoFlex-vessel-with-energy- efficient-shaft-generator-configuration/ Story first published 8th April 2013