Fuel-related emission estimation from the navigation profile of the ROKN combat vessel

Abstract

While the Departments of Defense are not obliged to reduce its emissions, according to global emission reduction efforts, some countries are changing this trend by promoting emission reduction in the Ministry of Defense as well. To accurately estimate emissions using the bottom-up method, it is necessary to calculate the annual exhaust emissions due to the weapon system operated in the military and the infrastructure used for maintenance and service of troops. In the case of calculating the emissions of naval vessels, the vessel's output, navigation distance, speed, fuel consumption rate, and emission factor for each type of fuel used are needed. In this work, emissions from the naval vessel are calculated based on the annual activity data of the OOO-class destroyer, the main combat vessel operated by the Republic of Korea Navy, and results were obtained for component analysis of the MGO used in the target vessel. Emissions subject to calculation are carbon dioxide, nitrous oxide, sulfur dioxide, and PM10. The investigation covers one year of the target vessel. The emission was calculated based on the EF calculation formula and the emission calculation formula presented by the EPA; upon comparing the result with the top-down method, the two values are determined to be close.