![]() ![]() In order to increase the endurance of the submarine, when such a need arises, the submarine needs to economise on the consumption of fuel. Based on these temperatures, the flow rate of oil cooling liquids are constantly adjusted to attain the set value.Įconomic Motor / Endurance Motor: In normal cruising and war conditions, the submarine operates on different speed modes of the main propulsion motor. Thermometers are placed at the forward and aft ends of the EPM to measure the temperature of the fuel oil and the lube oil.A pneumatic air coupling is used to connect the flywheel of the main propulsion motor with the line shaft leading to the next compartment.A DC powered motor is always used, as more power losses are observed in AC motors. It is driven by the electric power produced by the batteries. The main electric propulsion plant is located in the first compartment of the propulsion plant (refer to figure). Main Electric Propulsion Motor (EPM): The propulsion plant is distributed over two watertight compartments. A larger diameter propeller with low RPM enables higher propulsive efficiency. Propeller: Submarines mostly use five bladed propellers with high skew to reduce cavitation and effects of imbalanced thrust forces that act as exciting forces for longitudinal vibration of the shafting system. Figure 1: Propulsion plant of a diesel electric submarine. The layout of a propulsion plant of a diesel electric submarine is shown in Figure 1, and the main components are then discussed below. The propulsion system is housed in the aft section of the submarine. ![]() Intercom / Internal communication system.Shafting systems (a subsystem of main propulsion system).Power generation and distribution system.To list them, the primary systems on a submarine are as follows: This article will throw light on the primary systems used on-board a typical diesel electric submarine. It is to be noted that a typical diesel electric submarine would have more than 150 systems in all, some of which are used to cater to the major systems on-board. Please read the first four here – Introduction to submarine design, Understanding submarine design, Unique tanks on a submarine, and Understanding structure design of submarineĪmong the systems required for the operation of a submarine and completion of its mission, some have a remarkable similarity with those used in surface ships, whereas other systems are very uniquely designed only for the environment a submarine operates in. 1.This is the fifth part of the series of submarine design. Here are the Best Sites to Download English Subtitles in SRT Format and enjoy Movies and TV Series. Finally, play the video and enable the subtitle by using the media player.Now, rename the srt subtitle file as it is of the movie or TV series.Now, copy the srt subtitle file to the folder/directory where you kept the movie or TV series.Use any compressing tool to extract the file.The downloaded file will be in zip or RAR format. ![]()
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