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What happens in an evaporator?

What happens in an evaporator?

The evaporator works the opposite of the condenser, here refrigerant liquid is converted to gas, absorbing heat from the air in the compartment. The evaporator removes heat from the area that is to be cooled. The desired temperature of cooling of the area will determine if refrigeration or air conditioning is desired.

What happens in evaporator refrigeration?

As refrigerant travels through the evaporator, it absorbs heat from the air. As it absorbs heat, it vaporizes. If the system operates according to design, the refrigerant will be 100% vapor as it nears the exit of the evaporator. Before leaving the evaporator, the vapor continues absorbing heat, becoming superheated.

What happens to the liquid in evaporation?

Evaporation happens when a liquid substance becomes a gas. When water is heated, it evaporates. The molecules move and vibrate so quickly that they escape into the atmosphere as molecules of water vapor. Heat from the sun, or solar energy, powers the evaporation process.

What causes a liquid to change into a vapor?

As a liquid is heated, its molecules absorb heat and move faster. When the liquid starts to boil, bubbles of vapor form within the liquid and rise to the surface. The temperature that causes this to happen is known as the boiling point of a liquid.

What are the two functions of the evaporator?

Evaporators are responsible for the cool air that comes out of the vents. The evaporator’s cooling mechanism uses heat to do the job. Failure of the evaporator can lead to problems with the entire cooling system and damage some of your furnishings if the problem isn’t contained.

Is evaporator a heat exchanger?

An evaporator, like condenser is also a heat exchanger. In an evaporator, the refrigerant boils or evaporates and in doing so absorbs heat from the substance being refrigerated.

How does the evaporator remove humidity from the passing air?

evaporator coil that condenses water vapor from the air. When hot, moist air from your home moves across the cooled evaporator coil. The liquid is pulled away from the air, making your home feel less humid. The moisture collected is sent to a drain that leads outside your home, and away from the foundation.

What happens if liquid refrigerant enters the compressor?

If liquid refrigerant is entering the compressor, liquid will fall directly into the crankcase oil and eventually be flashed. As mentioned earlier, this is referred to as flooding. This causes oil foaming and excessively high crankcase pressures. Slugging in hermetic compressors can also occur from a migration problem.

What kind of changes is involve in evaporation process?

The evaporation of water is a physical change. When water evaporates, it changes from the liquid state to the gas state, but it is still water; it has not changed into any other substance. All changes of state are physical changes.

What must happen for liquid water to become water vapor?

When water absorbs enough heat, it becomes a gas (water vapor). This process is called evaporation. Water vapor (steam) mixes with the air and seems to disappear.

Is the process by which a liquid changes to gas or vapor?

vaporization, conversion of a substance from the liquid or solid phase into the gaseous (vapour) phase. If conditions allow the formation of vapour bubbles within a liquid, the vaporization process is called boiling.

What’s it called when liquid turns into solid?

Freezing occurs when a liquid is cooled and turns to a solid. Eventually the particles in a liquid stop moving about and settle into a stable arrangement, forming a solid. This is called freezing and occurs at the same temperature as melting.