When a vessel reaches specific speed, the circulating pump in cooling system stops driving. It relies only on kinetic energy its speed generates to provide seawater for condenser. This strategy is known as natural flow cooling. Under conditions, impeller rotates passively due impact, and serves significant resistance component system. The unstable within primarily attributed varying scales of s...

in this paper, the performance of a natural gas hcci engine is studied through a thermodynamic model including detailed chemical kinetics. it is shown that as hydroxyl radical has important effects on natural gas combustion, it is possible to quantify soc with hydroxyl concentration variations. meanwhile the influence of using formaldehyde as an additive on the engine characteristics has been i...