ORIGINAL RESEARCH article

Front. Mar. Sci.

Sec. Ocean Solutions

Volume 12 - 2025 | doi: 10.3389/fmars.2025.1551192

Research on Measurement and Management of Energy Consumption Distribution of Ship Engines

Provisionally accepted
Jipan  QiaoJipan Qiao1Guanyu  GuoGuanyu Guo2Ji  AnJi An2*Guohao  WuGuohao Wu2
  • 1Shanghai Ship Transportation Research Institute, Shanghai, Shanghai Municipality, China
  • 2Shanghai Maritime University, pudong, China

The final, formatted version of the article will be published soon.

Intelligent ship energy efficiency online monitoring systems should possess the capability to monitor a ship's primary energy-consuming equipment, navigation conditions, and other relevant parameters. In this study, the parameters obtained from engine test data were integrated into the system for verification purposes. The analysis focused on energy distribution and variations in the excess air coefficient under different loading conditions. The calculation results indicate that the proportions of turbocharger absorption power and shaft power increase with an increase in load, whereas the proportions of other losses decrease accordingly. Notably, the excess air coefficient exceeds 2 under each load condition and remains relatively constant after reaching 50% load. These findings suggest that the model meets the criteria for energy consumption monitoring. This methodology enables the pre-installation testing of system operation. Furthermore, this analytical approach facilitates engineers in assessing the engine's operating state and provides insights for fault diagnosis based on changes in energy consumption distribution. It also empowers developers and managers to comprehend the direction of engine development.

Keywords: Intelligent ship, Energy monitoring system, Excess air coefficient, Energy consumption distribution, Energy Management

Received: 24 Dec 2024; Accepted: 06 May 2025.

Copyright: © 2025 Qiao, Guo, An and Wu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Ji An, Shanghai Maritime University, pudong, China

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