Working Principle of Condenser in Car Engine

Condenser in car engine is a kind of heat exchange equipment used to cool fluid, usually water or air as coolant to remove heat. It has been widely used as the supporting equipment of high-power silicon rectifier, induction furnace, intermediate frequency furnace and other large electrical appliances to cool the pure water, water air, oil-water and oil air cooling device of the protection machine. The condenser is a device to release heat, which transfers the heat absorbed by the evaporator together with the heat transformed by the compressor work to the cooling medium.

The working principle of condenser in car engine is that the gas passes through a long pipe (usually coiled into a solenoid) to let the heat dissipate into the surrounding air. Metals such as copper have strong thermal conductivity and are often used to transport steam. In order to improve the efficiency of the condenser, the heat sink with excellent heat conduction performance is often attached to the pipe. The heat dissipation area is increased to accelerate the heat dissipation, and the air convection is accelerated by the fan to take the heat away.

The refrigeration principle of general refrigerator is that the compressor compresses the working medium from low-temperature and low-pressure gas into high-temperature and high-pressure gas, then condenses into medium temperature and high-pressure liquid through condenser, and then becomes low-temperature and low-pressure liquid after throttling by throttle valve. The liquid working medium with low temperature and low pressure is sent into the evaporator, which absorbs heat and evaporates in the evaporator and becomes low-temperature and low-pressure steam, which is transported to the compressor again to complete the refrigeration cycle. The single-stage vapor compression refrigeration system is composed of four basic components: refrigeration compressor, condenser, throttle valve and evaporator. They are connected in turn by pipes to form a closed system. The refrigerant circulates continuously in the system, changes its state and exchanges heat with the outside.

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