Tuesday, May 30, 2017

Wind Shield Test Shows Fuel Use Cuts Possible in Freight Vessels with Minor Changes to Design

MOL Demonstrates Successful Trial in Working Ships
Shipping News Feature
JAPAN – Around 18 months after first announcing plans to test wind resistance technology on board one of its vessels, Japanese shipping line Mitsui O.S.K. Lines (MOL) has completed an in-service demonstration test of a windshield for containerships, and determined that the device reduces emissions of carbon dioxide (CO2) by an average of 2%. The windshield, co-developed by MOL, was installed on the bow of its operated ship, the 6,724 teu MOL Marvel, for the demonstration test.

The test results confirmed about 2% average CO2 reduction after installing the windshield on the bow and sailing at 17 knots per hour, compared to operating an identical vessel at the same speed without the device installed.

The project is backed by the ‘Joint R&D for Industry Program,’ in which classification society Class NK promotes wide-ranging research and development activities in cooperation with industry, government and academia, and is conducted under the collaborative research of MOL, MOL Techno-Trade, Akishima Laboratories (Mitsui Zosen), Ouchi Ocean Consultant, and Class NK.

The objectives of the test were to accumulate Big Data on operational status during service on Asia-North America East Coast routes as compared to two sister ships with and without the windshield installed on the bow, and to establish a method to eliminate the data on the effects of ocean waves, and extract only the change in performance due to reduced wind resistance.

This analysis method and results of performance were presented at the Japan Society of Naval Architects and Ocean Engineers’ autumn and spring meetings (November 2016 and May 2017). MOL continues efforts to confirm the windshield’s seaworthiness and sailing data analysis, then moving forward to more advanced technological development based on this research project. The PBCF Department of MOL Techno-Trade is in charge of technical advice for windshield.