Compressors - heating up refrigerant flow

Air Conditioning and Heat Pumps · The Basics · printed page 210 (PDF page 211)

Original page Sign in to save

Book index entries

Air Conditioning – Compressor Compressor – Heating Up Refrigerant Gas Air Conditioning – Basics

Text in the illustration

refrigerant refrigerant flow refrigerant gas refrigerant gas heating up refrigerant flow
vertical hermetic compressor
motor stator
refrigerant flow
low temperature low pressure refrigerant gas
50°F
motor rotor
by significantly increasing the pressure on the refrigerant gas in the compression chamber we are also increasing its temperature
piston
compression area
valves
170°F
high temperature high pressure refrigerant gas
crankshaft
suction side
connecting rod
oil
crankcase heater (often clamped onto the outside of the compressor)
cross section

Generated explanation

A cross section of a vertical hermetic compressor shows the motor stator and rotor, crankshaft, connecting rod, piston, and compression-area valves inside a sealed housing. Blue arrows trace low-temperature, low-pressure refrigerant gas entering the suction side at 50°F and flowing through the housing toward the compression area. A red arrow shows high-temperature, high-pressure refrigerant gas leaving at 170°F. An annotation explains that increasing refrigerant gas pressure in the compression chamber also increases its temperature. Oil occupies the bottom of the housing, and a crankcase heater is shown clamped around its lower exterior.

Components

vertical hermetic compressor compressor housing motor stator motor rotor crankshaft connecting rod piston compression chamber compressor valves suction inlet discharge outlet crankcase heater

Materials

refrigerant gas lubricating oil