Evaporators and Condensers Objective 1

To study ancient civilizations

To learn about plant biology

To select and maintain heat transfer devices for refrigeration and air conditioning systems

To repair electrical circuits

Describe service and repair of evaporator and condensers

Explain the operation of a microwave oven

Describe evaporator components and their applications

Define terms related to evaporators and condensers

Both require the same type of evaporator coil

Neither requires an evaporator coil

The floral cooler requires a coil with low airflow, while the ice cream freezer requires a coil with high airflow

The floral cooler requires a coil with high airflow, while the ice cream freezer requires a coil with low airflow

The color of the fins

The humidity level in the room

The operating temperature of the coil

The size of the refrigerant tube

Liquid Overfeed

Dry Expansion

Flooded

None of the above

The rate of heat transfer between the refrigerant and the air

The rate of heat transfer between the evaporator and the condenser

The rate of heat transfer between the evaporator and the compressor

The rate of heat transfer between the evaporator and the expansion valve

To reduce the efficiency of the evaporator

To increase the refrigerant charge

To prevent liquid refrigerant from entering the compressor

To maintain the refrigerant liquid level

Natural Convection Evaporator

Forced Convection Evaporator

Flooded Evaporator

Dry Expansion Evaporator

To increase the refrigerant charge

To control the humidity level in the refrigerated space

To determine the rate of heat transfer from the refrigerated space to the refrigerant

To regulate the airflow through the evaporator

Compact design

Low refrigerant charge

Risk of damage from freezing

Increased efficiency