How a car heater works:
When a car engine is working, a large amount of heat is generated inside it. This heat is absorbed and carried away by the coolant through the engine's cooling system. The coolant circulates inside the engine, dissipates part of the heat through the radiator, and then flows back to the engine for a new cycle. During this process, some of the coolant flows through the heater's heat exchanger. In the heat exchanger, the coolant exchanges heat with the air flowing through it. The heat in the coolant is transferred to the air, causing the air temperature to rise. At the same time, the temperature of the coolant will decrease accordingly, but it will not affect the heat dissipation effect of the engine. Under the action of the blower, the cold air exchanges heat with the hot coolant in the heat exchanger to form warm air. The temperature and flow rate of warm air can be controlled by adjusting the speed of the blower and the opening of the air supply duct. The air heated by the heat exchanger is sent into the car under the action of the blower. The air supply duct distributes warm air to various areas in the car to provide drivers and passengers with a warm and comfortable riding environment.
In order to keep the temperature inside the car constant, the car heating system is also equipped with a temperature control device. This device automatically adjusts coolant flow and blower speed based on the driver's set temperature. When the temperature inside the car reaches the set value, the temperature control device will automatically reduce the flow rate of the coolant and the speed of the blower, thereby reducing the temperature and flow rate of the warm air; when the temperature inside the car is lower than the set value, it will increase cooling The flow rate of the liquid and the speed of the blower increase the temperature and flow rate of the warm air.
Things to note when using a car heater:
1. Do not turn on the heater immediately: When the car is just started, the engine temperature has not yet reached normal operating conditions. Turning on the heater immediately at this time may blow out cold air and increase the burden on the engine. Therefore, it is recommended to start the engine to warm up first, and then turn on the heater after the engine temperature pointer reaches the middle position.
2. Pay attention to air circulation: turning on the warm air for a long time will make the air in the car dry and even cause hypoxia. Therefore, the external circulation should be opened appropriately or the windows should be slightly opened to maintain the circulation and freshness of the air in the car. This will also help prevent your car windows from fogging up.
3. Avoid blowing directly on the face: Blowing directly on the face will dry out the skin and may cause discomfort. It is recommended to adjust the direction of the air outlet to avoid direct blowing to the face.
4. The temperature should not be too high: Too high a temperature will not only increase fuel consumption, but may also cause the driver to feel sleepy, leading to safety accidents. It is recommended to set the temperature within a comfortable range.
5. Do not turn on A/C: A/C is the cooling switch of the car air conditioner, and the warm air is heated by the temperature of the engine coolant. Therefore, when turning on the heater, there is no need to turn on the A/C switch, otherwise it will waste energy and affect the increase in the temperature inside the car.
6. Avoid long-term use: Prolonged use of warm air will make the air in the car dirty and affect the driver's respiratory health. Therefore, it is recommended to open the windows for ventilation every once in a while, or turn on the external circulation to let fresh air into the car.
7. Pay attention to safe driving: When using the heater, the driver should stay focused and avoid feeling drowsy due to excessive temperature in the car. At the same time, pay attention to road conditions and traffic signals to ensure driving safety.