More surface area to dissipate heat, the more exposed surface of a material the more place to 'let out' the heat
It's transferred to the air which passes through the condenser fins.
Assuming you mean condenser, in an automobile ac system the condenser is used to condense vapor into liquid.
Condenser
Remove any leaves or debris from the condenser fins, you can go over it lightly with a soft brush if you wish. Don't use high pressure air or water, as condenser fins bend easily. Use a fin comb to straighten any bent fins.
Couple things I can think of off the top of my head.. if it does provide cooling when the vehicle is moving, your refrigerant level is probably the issue - perhaps too much of it or too much PAG oil. This causes a low superheat and makes it more difficult for the heat exchange to occur. Bent fins on the condenser which are prohibitive to the passage of air through the fins is another possibility. When you get your car washed, do you put high pressure water directly to the grille? If so, there's a good chance its caused bent fins on your condenser (as well as on the radiator). The main cause I see is an inoperative radiator/condenser fan.
The condenser receives hot high pressure gas refrigerant from the air conditioning compressor.It cools this gas (it looks like a radiator) turning the gas into a cooler liquid. (condensing it)
Air must pass over the fins in the condenser to help the compressor turn the freon gas back into a liquid. The radiator fan doesn't pull enough air through the condenser efficiently when in park.
Similar function to a car radiator or an air conditioning condenser. The heat from the fluid is pressurized to build up heat. As it passes through the heat exchanger, the heat from the heated fluid is exhanged to the ambient air which passes through the cooling fins.
Unscrew radiator, should be two attachments connected to condenser. Unscrew them from the condenser and it should slide right out from in front of the radiator.
In front of the radiator.
In front of the radiator.
The condenser will be in front of the radiator.