Subj : Scientists propose new strategy for mode To : All From : ScienceDaily Date : Mon Jul 03 2023 22:30:28 Scientists propose new strategy for modern sails to help shipping sector meet its carbon reduction goals Date: July 3, 2023 Source: University of Manchester Summary: Researchers have identified a strategy that can offset the random and unpredictable nature of weather conditions that threaten carbon emission reduction efforts in the shipping sector. Facebook Twitter Pinterest LinkedIN Email ========================================================================== FULL STORY ========================================================================== Researchers have identified a strategy that can offset the random and unpredictable nature of weather conditions that threaten carbon emission reduction efforts in the shipping sector. Erratic weather is a major source of concern for ship owners installing modern sails to reduce carbon emissions. However, new research from The University of Manchester highlights operational strategies that can reduce shipping emissions by up to a quarter, strengthening confidence in sails as a decarbonisation tool. It is estimated that the international shipping sector contributes to 2-3% of global carbon emissions annually and its target to cut carbon by 50% relative to 2008 levels by 2050 falls short of the cuts required in the Paris Climate Agreement, meaning the shipping sector requires urgent global action. The research, published in the journal Ocean Engineering, calculated carbon emissions from more than 1000 ship departures setting sail from three main shipping routes. The results found that combining modern sail technology with efficient routing systems could provide greater assurances of carbon savings by using the technique that reduces uncertainty from unpredictable weather patterns. Dr James Mason, previously a postdoctoral researcher and now a visiting academic at the Tyndall Centre for Climate Change Research at The University of Manchester, said: "Current measures to reduce carbon emissions include fitting retrofit technologies, such as wind propulsion technology, where modern sails produce direct energy from the wind to reduce the power consumed by a ship's engine. Weather routing is also used as an efficient routing system to allow a ship to deviate from standard shipping routes to search for new routes with more favourable winds. "Current academic methods assume a perfect foresight of future weather rather than accounting for unpredictable winds that are happening in real-time. This can detrimentally reduce the carbon savings from weather routing and could present a real challenge for the shipping sector when trying to meet its climate reduction goals." Dr Alejandro Gallego Schmid, a Senior Lecturer at the Tyndall Centre for Climate Change Research, added: "This research provides an insight into which routes are most sensitive to changing weather forecasts when using wind propulsion and assesses a strategy that could help to mitigate the detrimental impact that unpredictable weather conditions can have." The strategy mirrors existing routing methods in the sector by updating weather and wind every 12 hours to allow ships to adjust their routes based on the most accurate weather forecast available. To test the strategy, the study simulated 1080 ship departures across eastbound and westbound journeys in the North Sea, South Atlantic Ocean and North Atlantic Ocean, which have voyage times of up to 12 days. The research found that the method successfully reduced the uncertainty from unpredictable weather and showed that sails and efficient routing can provide annual carbon savings of up to 25%. However, while the method reduces the uncertainty from unpredictable weather, it does not remove it entirely. Wind propulsion and efficient routing can provide maximum carbon savings of up to 29% in ideal conditions and weather uncertainty reduces these savings by 10-20%. Further research is needed to understand how ships can achieve these maximum savings in practice. Reducing shipping emissions by up to a quarter by using wind propulsion with efficient routing could provide profound benefits to the sector. The research offers a clearer understanding of the potential carbon savings achievable through wind propulsion decarbonisation strategies, without which, objectives in the Paris Climate Agreement may become out of sight. * RELATED_TOPICS o Matter_&_Energy # Wind_Energy # Automotive_and_Transportation # Organic_Chemistry o Earth_&_Climate # Weather # Global_Warming # Severe_Weather o Science_&_Society # Economics # Energy_Issues # Environmental_Policies * RELATED_TERMS o Climate_engineering o Fullerene o Weather o Severe_weather_terminology_(United_States) o National_Hurricane_Center o Carbon_dioxide_sink o Weather_forecasting o Sustainable_land_management ========================================================================== Print Email Share ========================================================================== ****** 1 ****** ***** 2 ***** **** 3 **** *** 4 *** ** 5 ** Breaking this hour ========================================================================== * Screens_More_Versatile_Than_LED:_Fins_and_... * GM_Pig_Heart_in_a_Human_Patient:_Update * Multiple_Sclerosis_Severity * Wind_Farm_Noise_and_Road_Traffic_Noise * Mavericks_and_Horizontal_Gene_Transfer * Early_Reading_for_Pleasure:_Brains,_... * New_Light_Shed_On_Evolution_of_Animals * Gullies_On_Mars_from_Liquid_Meltwater? * DNA_Organization_in_Real-Time * How_the_Cat_Nose_Knows_What_It's_Smelling Trending Topics this week ========================================================================== PLANTS_&_ANIMALS Birds Animal_Learning_and_Intelligence Molecular_Biology EARTH_&_CLIMATE Water Weather Climate FOSSILS_&_RUINS Dinosaurs Early_Mammals Origin_of_Life ========================================================================== Strange & Offbeat ========================================================================== PLANTS_&_ANIMALS Squash_Bugs_Are_Attracted_to_and_Eat_Each_Other's_Poop_to_Stock_Their Microbiome How_Urea_May_Have_Been_the_Gateway_to_Life Octopus_Sleep_Is_Surprisingly_Similar_to_Humans_and_Contains_a_Wake-Like_Stage EARTH_&_CLIMATE Turning_Old_Maps_Into_3D_Digital_Models_of_Lost_Neighborhoods Orangutans_Can_Make_Two_Sounds_at_the_Same_Time,_Similar_to_Human_Beatboxing, Study_Finds Do_Hummingbirds_Drink_Alcohol?_More_Often_Than_You_Think FOSSILS_&_RUINS Newly_Discovered_Jurassic_Fossils_in_Texas Megalodon_Was_No_Cold-Blooded_Killer 'We're_All_Asgardians':_New_Clues_About_the_Origin_of_Complex_Life Story Source: Materials provided by University_of_Manchester. Note: Content may be edited for style and length. ========================================================================== Journal Reference: 1. James Mason, Alice Larkin, Alejandro Gallego-Schmid. Mitigating stochastic uncertainty from weather routing for ships with wind propulsion. Ocean Engineering, 2023; 281: 114674 DOI: 10.1016/ j.oceaneng.2023.114674 ========================================================================== Link to news story: https://www.sciencedaily.com/releases/2023/07/230703133044.htm --- up 1 year, 18 weeks, 10 hours, 50 minutes * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (1:317/3) .