Chapter 11 - Basic Ref Cycle (Reading questions) Flashcards
Name the seven basic components of a refrigeration cycle in order of refrigerant flow;
- Evaporator
- Suction Line
- Compressor
- Hot gas discharge line
- Condenser
- Liquid Line
- Metering device
What is the purpose of the evaporator?
To absorb heat from where it is unwanted
What is the condition of the refrigerant when it is in the evaporator?
low temp low press saturated condition
What is the temperature difference between the air flowing over the evaporator and the refrigerant inside the evaporator?
20F
What material is used to make the suction and liquid lines?
copper tubing
What is the condition of the refrigerant in the suction line?
The tubing is cold, but the refrigerant inside is a superheated vapour
Name the two division points between the high pressure and low pressure sides of the system?
The compressor and the metering device
Briefly describe the function of the compressor
Separates high and low side of the system and compresses low temp low press gas into high temp high press gas
What is the condition of the refrigerant in the hot gas discharge line?
high temp high press gas
The suction line is larger in diameter than the discharge line?
TRUE OR FALSE?
TRUE
What is the purpose of the condenser
To remove superheat and condense to a liquid that is then sub-cooled
After air has passed through the condenser is the air hot or cold?
hot
After air has passed through the evaporator is the air hot or cold?
cold
In what condition is the refrigerant as it enters the condenser?
a) low temp, low press, superheated gas
b) moderate temp, high press liquid
c) high temp high press, highly superheated gas
c) high temp, high press, superheated gas
In what conditions is the refrigerant as it leaves the condenser?
a) low temp low press superheated gas
b) moderate temp, high press, sub cooled liquid
c) high temp, high press, highly superheated gas
b)
