The problem of maintaining a comfortable temperature in the passenger compartment arose at the dawn of the automotive industry. In order to maintain heat, motorists used compact wood and coal stoves, gas lamps. Even exhaust gases were used for heating. But as technology has advanced, more convenient and safer systems have begun to appear that can provide a comfortable climate during the trip. Today, this function is performed by the ventilation, heating and air conditioning system of the car - HVAC. Temperature distribution in the passenger compartment On hot days, the car body becomes very hot in the sun. Because of this, the air temperature in the cabin rises significantly. If the temperature outside reaches 30 degrees, then inside the car, the indicators can rise to 50 degrees. At the same time, the most heated layers of air masses are in ...

Car air conditioning is a rather complex and expensive system. It provides air cooling in the cabin, so its breakdown, especially in summer, causes a lot of inconvenience for drivers. A key component in the air conditioning system is the air conditioning compressor. Let us consider in more detail its device and principle of operation. How air conditioning works in a car It is difficult to imagine a compressor in isolation from the entire system, so first we will briefly consider the principle of operation of the air conditioning system. The device of a car air conditioner does not differ from the device of refrigeration units or domestic air conditioners. This is a closed system with lines in which the refrigerant is located. It circulates through the system, absorbing and releasing heat. The compressor performs the main work: it is responsible for the circulation of the refrigerant through the system and divides it into high and low pressure circuits. Heavily heated...

In a cold winter, a regular car stove may not be enough. In this case, an additional interior heater comes to the rescue. This is especially true for residents of the northern regions, where the air temperature drops to -30°C or lower in winter. Now there are many models of heaters and “hair dryers” on the market, which differ in price and efficiency. Types of heaters An additional heater helps to quickly warm up the car interior to a comfortable temperature, warm up the engine or warm the windshield from frost. This saves less fuel and time because the warm air enters the car right away. According to their device and principle of operation, four types of heaters can be distinguished. Air The first representatives of this category are the usual "hair dryers". Heated air is supplied to the passenger compartment by fans. Inside…