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Engine Room - an overview | ScienceDirect Topics 3 1 Manned engine room Ships with permanently manned engine rooms are rare nowadays Because the environment in an engine room is usually hot, humid and noisy, a normally unmanned engine room is a considerable benefit for the engineering crew
Research on hydrogen diffusion and sensor arrangement strategy in a . . . The engine room is known as the "heart" of a ship, containing the main propulsion system and shaft system, generator set, steam device, auxiliary power device, and other water supply, pollution prevention, fire protection and other equipment It has a large spatial range and complex pipeline routes
Coupling CFD and VR for advanced firefighting training in a virtual . . . To reach the final result, engine room parameters (e g type of engine room, layout, dimensions …) had to be defined After that, the most common fire scenarios inside the engine room were selected The third step marked the beginning of parallel work on a) building a CFD model and b) building a VR environment
Numerical simulation and experimental study of gas diffusion in a ship . . . The engine room is an independent enclosed area, and a good ventilation system is conducive to the stable operation of equipment in the engine room(Pérez et al , 2016) Therefore, under the condition of Q 1 = 0 25 kg s and normal operation of the engine room assembling unit, three different ventilation rates of 0, 30 times per hour and 60 times per hour are simulated numerically in this paper
Effects of ventilation system design on flame behavior and smoke . . . In an engine room fire, the flow of hot smoke in the upper of the room and the stratification of the smoke mainly depend on the ventilation air velocity As the ventilation velocity increases, the high-speed airflow formed by the ventilation system forces the exhaust of smoke, and the high turbulence of the smoke enhances the heat transfer intensity in the room
Phenomenological characteristics and flame radiation of dynamically . . . With respect to ship engine room fires, Bailey et al (1993) conducted a series of pool fire experiments in a large-scale chamber, and found that the mass loss rate of the fire would decrease linearly with the oxygen concentration as the oxygen fraction in the chamber ranged from 21% to 13 5%, while fire would be self-extinguished as the oxygen fraction dropped below 12%
CFD analysis of natural gas dispersion in engine room space based on . . . The engine room space is meshed using the Hypermesh Software, with 1,259,127 elements and 232,534 nodes, as illustrated in Fig 2 To obtain high grid quality, grid refinement is applied in areas with large gradients, such as air inlets, outlets and gas leakage areas
Intelligent 3D layout optimization design of ship engine room based on . . . Firstly, the initial 3D layout scheme of engine room equipment is automatically obtained by the KBE method including knowledge acquisition, knowledge representation and knowledge reasoning Then the multi-objective optimization of ship engine room layout is performed by the simulated annealing algorithm (SAA) to acquire the optimal design scheme
Energetic optimization of the ventilation system in modern ships Similar considerations can be extracted from other modern studies, estimating that nowadays more than 35% of the accidents on board occur in the engine room, in such a way that any redesign of the engine room ventilation system requires the consideration of the current regulations on labour risk prevention, in addition to energy efficiency
Numerical study on the internal ventilation of the engine room of a . . . The engine room interior comprises five decks, and the lower three decks are made up of one space called the third deck, allowing for three different spaces After CFD simulations were performed in the whole domain, post-process analyses were performed for the respective spaces