RT journal article T1 Comparative analysis between different methods for calculating on-board ship's emissions and energy consumption based on operational data A1 Moreno Gutiérrez, Juan A1 Pajaro Velázquez, Emilio José A1 Amado Sánchez, Yolanda Santísima Trinidad A1 Rodríguez Moreno, Rubén A1 Calderay Cayetano, Fátima A1 Durán Grados, Cristina Vanesa A2 Máquinas y Motores Térmicos K1 Shipping energy K1 Shipping emissions K1 Ro-Pax K1 Ship energy load factors K1 Emission factors AB this article describes and compares four existing methods (EPA, IMO, Jalkanen and MAN) for calculating energy consumption and emissions, and presents a more realistic method, based on a case study. The purpose is to examine the differences between all of these methods, in order to propose the most suitable method of obtaining the data needed for better energy management, and a method that can be applied to any type of ship. The case study was carried out on Ro-Pax ships, comparing these four different methods through the application of a bottom-up integrated system approach. PB Elsevier SN 0048-9697 YR 2019 FD 2019-02-10 LK http://hdl.handle.net/10498/35108 UL http://hdl.handle.net/10498/35108 LA eng NO This work was carried out under the Project titled: “La influencia del transporte marítimo sobre la salud humana: propuesta de un modelo de cálculo de predicción de muertes y hospitalizaciones anuales en la provincia de Cádiz”. Reference PI 0094-2017. Consejería de Salud de la Junta de Andalucía. Project Co-financed by FEDER Funds.Work under the project is also supported by the Master Plan for Spanish Ports 2015-EU-TM-0417 OPS,22 co-financed by the EUConnecting Europe Facility CEF -RET-T EU. DS Repositorio Institucional de la Universidad de Cádiz RD 10-may-2026