Exam 21: Evaporators and the Refrigeration System

A defrost system that pipes the compressor discharge vapor directly to the evaporator is called a(n) ____________________ type.

Describe a flooded coil.

Why are the fins of a low temperature evaporator spaced wider apart than those on a high temperature evaporator?

If an evaporator has a pressure drop of 10 psig and the low side pressure is 15 psig, what is the pressure at the inlet of the evaporator?

The film factor is a relationship between the medium giving up heat and the heat-exchange surface.

What do the temperature ranges for commercial refrigeration refer to?

When the refrigerant vapor is saturated with heat it is known as a(n) ____________________.

A typical evaporator operating temperature in an air-conditioning system is ____.

The household refrigerator fresh-food compartment typically ranges from ____.

____________________ evaporators are used when the coil would become too long for a single circuit,percent vapor.

Evaporators that are operated full of liquid and are equipped with a device to keep the liquid refrigerant from passing to the compressor are known as ____.

What is a starved coil?

____________________-temperature refrigeration produces temperatures below the freezing point of water.

What is a bearing washout?

___________________ the air means to remove the moisture, and this is frequently desirable in refrigeration systems.

The process of removing heat from a place where it is not wanted and transferring that heat to a place where it makes little or no difference is known as ____.

The boiling temperature and its relationship to the system exist in the ____.