Towards GHG Reduction: A Quick Assessment Methodology for Predicting Ship’s Power Demands during Maritime Operations

Presented at: ISOPE-PACOMS (International Society of Offshore and Polar Engineers - Pacific Asia Offshore Mechanics Symposium)

Authors: Himanshu Uppal, Ramkumar Joga, Sharad Dhavalikar, Ninad Chitnis

Date of Presentation: 13-16 October, 2024

Hull roughness, caused by biofouling and aging of a ship hull, significantly increases GHG emissions. Studies (GloFouling, 2022) suggest that a mere 0.5mm slime covering half the underwater hull can intensify the GHG emissions by 25%. This paper presents a methodology using a time-dependent roughness function to predict fuel demands, aligning with (MEPC.378 (80), 2023). Integrating the famous empirical method (Holtrop, 1982) the approach which will help the stakeholders to identify the rising power demands on the basis of ship’s idle time and help in prioritizing cleaning efforts based on drag impact. This methodology aims to enhance biofouling management strategies, promoting sustainable maritime practices and reducing GHG emissions.