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How A Car Air Conditioner Works

During the summer season, most of us find use indoor air conditioning system. Houses, establishments and even cars today have this device to make the room temperature cooler. Air conditioners come in different sizes, cooling capacities and prices. Even though each of these coolling machines has a distinct look, they all work on the same principles. So how does a car air conditioner work?

A car air conditioner is similar to a refrigerator. The main difference is that it doesn't have the insulated box. It uses the evaporation of a refrigerant, like freon, to provide the cooling effect. First, a compressor compresses cool freon gas, causing it to become hot, high-pressure freon gas. Powered by a drive belt connected to the engine's crankshaft, it spins freely with the clutch disengaged and drives the compressor when engaged. The hot gas goes through a set of coils called the condenser, which is a tool used to change the high-pressure refrigerant vapor to a much cooler liquid state.

Afterwads, the freon liquid runs through an expansion valve, and in the process, it evaporates to become cold, low-pressure freon gas. To ensure that the valve gets liquid refrigerant, a receiver is utilized. The main function of the receiver-drier is to separate gas and liquid. Lastly, the evaporator absorbs the heat from the air that is passed through it. This part consists of tubes and fins and is mounted inside the passenger compartment. A blower fan inside the passenger compartment helps to distribute the cooler air.

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