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Focusing on the invention of new measurement methods in order to analyze hull coating efficiency more precisely is one approach. However, it is possible to treat performance data from in-situ observations carried out at specified intervals onboard any vessel (over 10,000 dwt) by means of a data collection protocol.
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This standard practice provides a standardized method of measuring hull roughness to enable reproducible and comparable readings from similar gauges regardless of geographical location.
One of the factors affecting a ship's performance and fuel consumption is the roughness of its foul-free underwater hull. the Condition and type of paint system used may have a major influence on hull roughness and ship performance. Hull roughness has a major impact on vessel fuel efficiency and exhaust emissions. This standard focuses on the mechanical roughness of the hull.
HISTORICAL DOCUMENT. Measuring hull roughness of vessels in dry-dock. Limited to a methodology—no interpretation presented. Hull roughness has a major impact on vessel fuel efficiency.
One of the key factors affecting ship performance, particularly fuel consumption and associated GHG (Green House Gas) emissions, is the degree of biofouling on the immersed hull and propeller(s). Rates of biofouling accumulation vary considerably, depending on the suitability, age and physical condition of the coating system(s) applied to the hull, the voyaging, anchoring and lay up patterns of the ship, and the geographical regions where these take place.
A case study of how poor initial quality control resulted in a complete coatings rework of the underwater bottom (exterior hull) of a large Floating Storage Unit (FSU) and how a good quality control program, during rework, resulted in the documented long term performance of the second application underwater hull coating system.