<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This article presents the influence of various ship’s operational conditions occurring during manoeuvres related to entering and leaving the ports and mooring operations. Frequent starts and stops of the ship’s propulsion unit are then required, which affect the variability of the energetic loads of the ship’s power plant, causing accelerated, non-design wear of the ship’s main propulsion engine. The effects of cold start-ups of the main ship engine are the subject of this study. Conditions of the engine inlet valve damage process are discussed. The physics of the degradation process leading to air inlet valve damage was considered. Laboratory tests of structure continuity and their results are discussed, and the valve material defects were excluded as the cause of the damage. The causes of repeated damage to the inlet air valves were identified. The effectiveness of the performed corrective measures was confirmed by a documented control test of the engine start-up. The article is a utilitarian premise for the requirements of the Classification Society.</p>
</abstract>

This article presents the influence of various ship’s operational conditions occurring during manoeuvres related to entering and leaving the ports and mooring operations. Frequent starts and stops of the ship’s propulsion unit are then required, which affect the variability of the energetic loads of the ship’s power plant, causing accelerated, non-design wear of the ship’s main propulsion engine. The effects of cold start-ups of the main ship engine are the subject of this study. Conditions of the engine inlet valve damage process are discussed. The physics of the degradation process leading to air inlet valve damage was considered. Laboratory tests of structure continuity and their results are discussed, and the valve material defects were excluded as the cause of the damage. The causes of repeated damage to the inlet air valves were identified. The effectiveness of the performed corrective measures was confirmed by a documented control test of the engine start-up. The article is a utilitarian premise for the requirements of the Classification Society.

Studies on the Effects of Cold Starts of the Ship Main Engine

Polish Maritime Research

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"Studies on the Effects of Cold Starts of the Ship Main Engine"}

This article presents the influence of various ship’s operational conditions occurring during manoeuvres related to entering and leaving the ports and mooring...

Studies on the Effects of Cold Starts of the Ship Main Engine

Published Online: Oct 29, 2022

Page range: 109 - 118

DOI: https://doi.org/10.2478/pomr-2022-0031

Keywords
cold start-ups, damage, inlet valves, main engine, ship

© 2022 Andrzej Adamkiewicz et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Studies on the Effects of Cold Starts of the Ship Main Engine

Published Online: Oct 29, 2022

Page range: 109 - 118

DOI: https://doi.org/10.2478/pomr-2022-0031

Keywordscold start-ups, damage, inlet valves, main engine, ship

© 2022 Andrzej Adamkiewicz et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
cold start-ups, damage, inlet valves, main engine, ship