{"id":499,"date":"2026-07-27T16:14:55","date_gmt":"2026-07-27T20:14:55","guid":{"rendered":"https:\/\/flumen.clients.cake.fm\/?post_type=cke_article&#038;p=499"},"modified":"2026-07-27T16:14:56","modified_gmt":"2026-07-27T20:14:56","slug":"lng-fuel-tank-digital-twin","status":"publish","type":"cke_article","link":"https:\/\/flumen.clients.cake.fm\/fr\/articles\/lng-fuel-tank-digital-twin\/","title":{"rendered":"LNG Fuel Tank Digital Twin"},"content":{"rendered":"\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li>Industries: Maritime Engineering \/ LNG Fuel Gas Supply Systems (FGSS)<\/li>\n\n\n\n<li>Project Type: Dynamic simulation and cloud-based digital twin<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This case study describes the development and deployment of a dynamic digital twin for an LNG fuel tank and fuel gas supply system on an LNG\u2010fueled vessel. The system supports pressure control, fuel planning, and boil\u2010off gas (BOG) management during bunkering and extended ocean voyages.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Challenge<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">LNG fuel tanks onboard vessels are continuously exposed to ambient heat and solar radiation, causing boil\u2010off gas generation and rising tank pressure. Pressure that is too high presents a safety risk, while pressure that is too low creates mechanical and operability issues for the fuel gas supply system. Additionally, LNG consumption varies with engine load and voyage conditions, making it difficult to plan bunkering operations and ensure sufficient fuel availability using static calculations alone.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Solution<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A rigorous dynamic process simulation was developed using the CHEMCAD simulator to create a digital twin of the LNG fuel tank and FGSS. The model explicitly accounts for non\u2010equilibrium vapor\u2010liquid behavior, ambient heat transfer through the tank wall, boil\u2010off gas generation, and cooling via cold LNG spray.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Key thermal and operational parameters were tuned using actual vessel data. Heat transfer coefficients were identified through isolated tank tests with all valves closed, while spray efficiency parameters were calibrated using LNG bunkering operation data. The validated digital twin was deployed in a cloud environment and integrated with the Sea\u2010Navi\u00ae 2.0 system to deliver online simulation results and future predictions to the vessel.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Results<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The calibrated digital twin accurately reproduced measured tank pressure and temperature trends during both isolated conditions and active bunkering operations. Voyage simulations covering a 65\u2010day route (Singapore \u2192 Australia \u2192 Japan \u2192 Singapore) successfully predicted LNG consumption, tank pressure behavior, liquid inventory, and methane composition throughout changing operating modes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By running simulations prior to departure and during navigation, operators were able to evaluate pressure margins, spray requirements, and fuel availability, significantly improving operational confidence and voyage planning accuracy.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/flumen.clients.cake.fm\/wp-content\/uploads\/2026\/07\/CS-CHEMCAD-Azbil-Digital-Twin.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Read the article<\/a><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"This case study describes the development and deployment of a dynamic digital twin for an LNG fuel tank and fuel gas supply system on an LNG\u2010fueled vessel. The system supports pressure control, fuel planning, and boil\u2010off gas (BOG) management during bunkering and extended ocean voyages. Challenge LNG fuel tanks onboard vessels are continuously exposed to [&hellip;]","protected":false},"featured_media":0,"template":"","cke_solution":[22],"cke_type":[18],"class_list":["post-499","cke_article","type-cke_article","status-publish","hentry","cke_solution-chemcad","cke_type-case-studies"],"acf":{"linked_sector":""},"mb":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>LNG Fuel Tank Digital Twin - Flumen<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LNG Fuel Tank Digital Twin - Flumen\" \/>\n<meta property=\"og:description\" content=\"This case study describes the development and deployment of a dynamic digital twin for an LNG fuel tank and fuel gas supply system on an LNG\u2010fueled vessel. 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