Refrigeration theory

Question 1

What is sensible heat?

Answer 1

The addition of energy that causes a temperature chance that can be sensed.

Question 2

What is latent heat?

Answer 2

The addition of energy that causes a phase chang.

Question 3

What is refrigeration?

a. produces cold?
b. is a heat removal process.

Answer 3

b. is a heat removal process.

Question 4

What is a BTU?

Answer 4

the amount of heat required to rase 1lbm of water 1 deg F.

Question 5

What states can a substance exsist?

Answer 5

Solid

Liquid

Gas

Plasma

Question 6

What are the methods of heat transfer?

Answer 6

Radiation

Conduction

Convection

Question 7

What is a refrigiration Ton?

Answer 7

The amount of heat absorbed in melting a 1 ton block of ice in 24 hours.

Question 8

What components are on the high pressure side?

Answer 8

a. Compressor
b. Hot Gas Bypass
c. Condenser
d. Receiver (may be part of condenser)
e. Filter/ Drier
f. Liquid Line Isolation Valves
g. Liquid Line Sight glass
h. Expansion Device

Question 9

What components are on the low pressure side?

Answer 9

a. Evaporator
b. Compressor suction/discharge valves
c. Compressor crankcase

Question 10

Draw the flow path of a basic refrigeration cycle

Answer 10