No, modern diesel-electric submarines can use diesel engines to operate at periscope depth. The submarine has a specially designed snorkel that rises from inside the boat to the surface. the submarine dives deeper If so, you cannot use a diesel engine and must rely on an electric motor. However, with the development of technology, there is now an AIP submarine, which stands for "air independent propulsion". comes with its own liquid oxygen and alcohol, and also It is based on the principle of fuel cells. All of these significantly improve the underwater endurance of submarines. As for oxygen, there are generally two main methods for breathing oxygen. to obtain oxygen. Conventional submarines use regenerative medicine panels to absorb carbon dioxide and release it fromoxygen.
The water tank is divided into an auxiliary water tank and a radiator tank after water is injected from the auxiliary. water tank, it circulates through the engine water pump. There is a three-way pipe at the connection between the water tank and the engine, and there is a thermostat inside. The device is closed when the engine temperature is low to allow low temperature. circulation of water in the engine. When the engine temperature reaches a certain level, the engine opens to form a large circulation of the water tank and the engine cooling water.