Deep ocean underwater ship propeller cleaning by Engineer

Описание: Deep ocean underwater ship propeller cleaning by Engineer||
इंजीनियर द्वारा गहरे समुद्र के पानी के नीचे जहाज प्रोपेलर की सफाई।

#ocean #shipping #vessel #transport #containership #proplayer #propeller #cleaning #underwater #bigship #hardwork

The underwater propeller cleaning (multi-stage micro polishing of all surfaces) and the maintenance of the smooth surfaces, is vital in order to save energy and optimize the performance of the ship (improvement of vessel’s performance). The rough propeller leads to power loss, which can be up to 6% as well as an increase of fuel consumption. 
The propeller blades function as a spoiler. The development of thrust that they generate is a result of flow around the blade. As the propeller turns the blades generate a pressure difference in the water, pushing the ship forward or backwards, depending on the way that the propeller turns, as well as the pitch of the blades. There are fixed pitch propellers and variable pitch propellers.
An important problem in shipping is the increase of roughness to the ship’s propeller, as the fuel consumption and the emission of gaseous pollutants in the environment is increased and significant losses are caused to the propulsion system.

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