Question

how ac's work? does it consume more energy than cooler?

Answer 1

The air conditioner provides cool air inside a house. It uses chemicals that readily convert from a gas to a liquid and drag out warm air from inside of a house to the outside by removing its heat.
The air conditioner consists three main parts that operate the system. They are a compressor, a condenser and an evaporator. The compressor and condenser are outdoor unit.
The chemicals enter into the compressor. The compressor extract it and send it to the condenser in the form of a high pressure gas. The condenser changes this gas into a cold liquid. This liquid moves into the evaporator. The evaporator is a indoor cooling unit, which again changes the liquid into a gas. The evaporator consists of metal fins, that exchanges the thermal energy with the surrounding air. The evaporator is connected to a indoor unit's fan, that circulates the inside air to flow across it. The air conditioner contains a duct that pull the hot air. As the heat is removed from the air, the air is cooled and blown back into the house. This process continues over and over until the house reaches to the desired cooling temperature.
Yes, the air conditioners consume more energy than air cooler. The air conditioners consume up to 10 times more energy than the air cooler.