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

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.

Application of IoT Technologies in Seaport Management

“…To solve this problem, Vakili et al [166] developed an energy management framework to reduce air emissions in shipbuilding. In addition, optimizing the ship design [167][168][169], using advanced techniques and applying post-treatment methods for SOx and NOx reduction [170][171][172][173][174][175][176][177], using low or free-carbon fuels (hydrogen, ammonia) [178][179][180][181][182][183][184][185], and/or developing methods for recovering the waste heat from large marine diesel engines [186][187][188][189], using renewable energy and energy storage technologies in ships, port, and vehicles in port [85,[190][191][192] could also be potential solutions to reduce pollutant emission from maritime and port actions. Although the above studies propose to solve this pollution by different methods, they are all towards sustainability for the environment, especially a specific environment such as seaports.…”

Determination of Rational Design Values for Gas-Air Coolers Components of Exhaust Gases of Marine Power Plants

“…Research on the features of the cold start of the main engine of the vessel is the subject of work by Adamkiewicz et al [23]. Typical damage to the structural elements of a diesel engine is presented.…”