Lesson 2 Flashcards
FIRST LAW
Heat flows from high to low temperature.
What process does heat travel to go from higher to lower temperature
conduction
SECOND LAW
Heat when applied to a liquid will convert it to vapor or gas
All liquid exposed to heat changes its state from liquid to vapor or gas when they attain their respective boiling point. This process is called
Evaporation
THIRD LAW
Heat when eliminated from vapor or gas turns back to liquid
The external temperature that is relatively colder takes the heat from the vapor (through conduction), this is known as
Condensation
Three Major concept involved in refrigeration and air-conditioning
Heat
Temperature
Pressure
is a form of energy. As the temperature of a substance increases, atoms moves rapidly, while the temperature decreases they slow down
Heat
is the degree of hotness and coldness of a substance it measures the heat intensity or heat level of a substance
Temperature
– it is the force per unit area
Pressure
Four Major Mechanical Parts of a Refrigeration System
Compressor
Condenser
Refrigeration flow control (expansion valve, capillary tube, or throttling device)
Evaporator
it cleans the refrigerant of any dirt or impurity it collects while circulating around the system. It is connected between the liquid line and the capillary tube
The filter/ strainer
it is a part where the capillary tube and suction tube are soldered together to exchange the low and high temperature that compensates one anothe
The heat exchanger
it entraps the remaining liquid refrigerant that may have escaped from the evaporation. This is connected between the evaporator and the suction line.
accumulator
What are the three passive mechanical parts
The suction line
Discharge line
Liquid line
