What type of circuit design is used in the cooling system of this Diesel Generators?

The heat exchanger is the core component of the cooling system and is usually composed of a series of pipes and fins. Fresh water flows in the pipes, while the external cooling medium (such as seawater or air) flows through the fins. The fresh water transfers heat to the external cooling medium through heat conduction and convection.
The water pump is responsible for pumping fresh water from the water tank and pressurizing it into the water channels in the engine block and cylinder head. The performance of the water pump directly affects the circulation speed and cooling effect of the fresh water. The engine water channel is cleverly designed in the engine block and cylinder head to ensure that the fresh water can flow evenly through all parts that need to be cooled. The thermostat is used to adjust the temperature of the fresh water. When the fresh water temperature is low, the thermostat will close some water channels to reduce heat loss; when the fresh water temperature is high, the thermostat will open to allow more fresh water to flow through the radiator for cooling. Bypass pipe When the thermostat is closed, the bypass pipe allows part of the fresh water to bypass the radiator and flow directly back to the water tank to keep the engine warming up quickly during cold start.
The radiator consists of a series of fins and pipes to dissipate the heat in the fresh water into the atmosphere. The design and material selection of the radiator directly affect the heat dissipation effect and service life. The fan is used to enhance the heat dissipation effect of the radiator. When the fresh water temperature is high, the fan will start and accelerate the air flow through the radiator, thereby taking away more heat.
When the Diesel Generators is running, the fresh water begins to circulate under the action of the water pump. After the fresh water is drawn from the water tank, it is pressurized by the water pump and enters the engine water channel to absorb the heat generated by the engine. Then, the heated fresh water flows into the heat exchanger to exchange heat with the external cooling medium. In this process, the fresh water transfers heat to the external cooling medium and its own temperature is reduced. The cooled fresh water flows out of the heat exchanger, and after further heat dissipation through the radiator, it returns to the water tank again to wait for the next cycle.
The dual-circuit fresh water cooling system can ensure the stable operation of the engine in a high temperature environment. Since fresh water has higher thermal conductivity and lower viscosity, it can absorb and carry away the heat generated by the engine more effectively. At the same time, the design of the heat exchanger makes the heat exchange between fresh water and the external cooling medium more sufficient and efficient.
The system uses fresh water as a cooling medium, which has less impact on the environment. Compared with direct use of seawater or air cooling, the fresh water cooling system can reduce seawater pollution and air emissions. In addition, by optimizing the heat exchange process and improving energy utilization efficiency, the system can also reduce energy consumption and operating costs.
The fresh water circuit is relatively simple and easy to maintain. Since fresh water does not corrode pipes and equipment, the maintenance cost of the system is low. At the same time, the fresh water cooling system is usually equipped with fault alarm and diagnosis functions, which can detect and solve problems in time to ensure the stable operation of the system.
The system can adapt to the operation requirements under different environmental and climatic conditions. Whether in harsh environments such as high temperature, high humidity, and high salinity, or in extreme climatic conditions such as cold and dry, the dual-circuit fresh water cooling system can maintain a stable cooling effect.