Closed cooling systems of ship power plants with heat sleeve through ship's cladding
Abstract
The drawbacks of widespread open-loop cooling systems for ship power plants are analyzed. It is shown that as a result, the seas are caused significant ecological damage. The operation of such systems in a polluted water area can lead to clogging of the system and its emergency shutdown. The issue of various options for creating closed cooling systems with heat removal through the ship's skin is considered. This eliminates the need to receive seawater. Experimental data for labyrinth and jet type devices are presented. Moreover, the latter are distinguished by a greater simplicity of design. Generalizing similarity equations describing the ongoing processes are determined. The achieved heat transfer coefficients on the inner surface of the ship's hull plating are compared. It has been determined that jet devices are characterized by better performance compared to labyrinth ones. The difference becomes most noticeable when the vessel is moving, compared to the case of anchorage. This allows us to recommend jet devices for wider implementation in shipbuilding practice.
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